(9x-1)=(2x+13) find EDC

Answers

Answer 1

The measure of the angle EDC is 17 degrees


Calculating the measure of the angle EDC

From the question, we have the following parameters that can be used in our computation:

(9x - 1) = (2x + 13)

Evaluating the like terms

So, we have

7x = 14

Divide by 7

x = 2

So, we have

EDC = 9x - 1

Substitute the known values in the above equation, so, we have the following representation

EDC = 9(2) - 1

Evaluate

EDC = 17

Hence, the measure is 17 degrees

Read more about angles at

https://brainly.com/question/25716982

#SPJ1


Related Questions

A journalist created a table of the political affiliation of voters in Ontario (NDP, Conservative, or Other) and whether they favoured or opposed raising taxes.
Raising Taxes
Favour Oppose
NDP 0.09 0.28
Conservative 0.23 0.12
Other 0.14 0.14
Find the probability that a Conservative voter opposed raising taxes.
A. 0.350
B. 0.222
C. 0.540
D. 0.343
E. 0.120

Answers

Rounding to three decimal places, we get 0.343 or approximately 0.222 when expressed as a percentage.

The probability that a Conservative voter opposed raising taxes, we need to look at the second row of the table, which shows the proportions of Conservative voters who favoured or opposed raising taxes.

The proportion who opposed raising taxes is 0.12.
Therefore, the answer is B. 0.222.
To calculate this probability, we simply divide the number of Conservative voters who opposed raising taxes by the total number of Conservative voters:
0.12 / (0.23 + 0.12) = 0.12 / 0.35 = 0.342857
Rounding to three decimal places, we get 0.343 or approximately 0.222 when expressed as a percentage.

This means that there is a 22.2% chance that a Conservative voter opposed raising taxes.

For similar questions on decimal

https://brainly.com/question/28393353

#SPJ11

A study indicates that spending money on pollution control is effective up to a point but eventually becomes wasteful. Suppose it is known that when x million dollars is spent on controlling pollution, the percentage of pollution removed is given P(x)=100x0.03x2+9.P(x)=0.03x2+9100x​​.a. At what rate is the percentage of pollution removal P(x) changing when 16 million dollars is spent? Is the percentage increasing or decreasing at this level of expenditure? b. For what values of x is P(x) increasing? For what values of x is P(x) decreasing?

Answers

a. At a spending level of $16 million, the percentage of pollution removal is increasing at a rate of 0.97% per million dollars spent.

b. For spending levels below $150 million, the percentage of pollution removal is decreasing, while for spending levels above $150 million, the percentage of pollution removal is increasing.

a. To answer the first part of the question, we need to find the rate at which the percentage of pollution removal is changing when $16 million is spent. This is the derivative of the function P(x) evaluated at x = 16. Taking the derivative, we get P'(x) = 0.06x + 9/100.

Evaluating at x = 16, we get P'(16) = 0.06(16) + 9/100 = 0.969, or approximately 0.97%.

b. To determine for what values of x the function P(x) is increasing or decreasing, we need to find the sign of the derivative P'(x). Taking the derivative of P(x), we get P'(x) = 0.06x + 9/100. This derivative is positive for x > -9/0.06, or x > -150, and negative for x < -150.

To know more about percentage here

https://brainly.com/question/13729841

#SPJ4

What are the next numbers in this sequence: 9 13 22 ... 57 ...

Answers

Answer: 35, 92

Step-by-step explanation: We see that the third number is the result of adding the first two numbers (9+13=22). Continuing with this pattering, we know that the fourth spot is 22 + x = 57. 57-22 is 35, so the fourth spot is 35. The sixth spot will be 57 + 35, or, 92.

Answer:

The next numbers in the sequence are 35, and 92.

Step-by-step explanation:

The Fibonacci sequence starts with 0 and 1, and each subsequent number is the sum of the two preceding numbers. So, the next numbers in the Fibonacci sequence would be:

9 + 13 = 2213 + 22 = 3522 + 35 = 5735 + 57 = 92

Therefore, the next numbers in the sequence are 35, and 92, if the sequence is continued using the Fibonacci sequence.

HW 9 Chain Rule Tangent Planes: Problem 5 Previous Problem Problem List Next Problem (1 point) Find the equation of the tangent plane to the surface z = ly2 – 922 at the point (1, -3,0). Z= Note: Yo

Answers

The equation of the tangent plane to the surface z=ly2-922 at the point (1,-3,0) is z = -27 - 6ly(x-1).

To find the equation of the tangent plane to the surface z=ly2-922 at the point (1,-3,0), we need to first find the partial derivatives of z with respect to x and y.

∂z/∂x = 0

∂z/∂y = 2ly

Next, we need to evaluate these partial derivatives at the given point (1,-3,0), which gives us:

∂z/∂x(1,-3,0) = 0

∂z/∂y(1,-3,0) = -6l

Using these partial derivatives, we can now write the equation of the tangent plane:

z = f(a,b) + ∂f/∂x(a,b)(x-a) + ∂f/∂y(a,b)(y-b)

where f(a,b) is the value of the function at the point (a,b), and (x-a) and (y-b) are the differences between the given point and the point on the tangent plane.

Plugging in the values we found, we get:

z = -27 - 6ly(x-1)

To know more about tangent plane click on below link:

https://brainly.com/question/30260323#

#SPJ11

find the value of k for which the roots of the quadratic equation 5x-10x+k=0 are real and equal

Answers

The roots of the given equation is real and equal.

Given , 5[tex]x^{2} \\[/tex] - 10x+ k=0

The quadratic equation is b² - 4ac = 0

Here, a= 5, b= -10, c= k

substitute in b² - 4ac = 0

(-10)² - 4 * 5* k =0

100 - 20k =0 , let this be equation (1)

100 = 20k

k = [tex]\frac{100}{20}[/tex]

k = 5.

now, substitute  k= 5 in equation (1)

100 -20k = 0

100 - 20*5 = 0

100 - 100 = 0

Therefore, the given equation is real and equal .

The correct question is 5x² - 10x + k =0

To learn more about Quadratic equations : https://brainly.com/question/28440540

The time (in years) until the first critical-part failure for a certain car is exponentially distributed with a mean of 3.2 years. Find the probability that the time until the first critical-part failure is less than 1 year.

Answers

For an exponential distribution of time (in years) until part failure for a certain car, probability that the time until the first critical-part failure is less than 1 year is equals to the 0.2684.

The exponential distribution is a type of continuous probability distribution that is used to measure the expected time for an event to occur. Formula for it is

[tex]f(X) = \lambda e^{-\lambda x} ; X>0[/tex], where [tex]\lambda [/tex]--> rate parameter

x --> observed value

We have time ( in year) first critical-part failure for a certain car is exponentially distributed. Let X be the time until the first critical part failure for a certain car. Now, X follows Exponential distribution with mean 3.2 years. The probability density function of X is [tex]f(X) = \lambda e^{ - \lambda x} ; X>0 [/tex]

Here in this problem, [tex] \lambda =\frac{1}{3.2} [/tex] = 0.3125

Using the formula the probability of X less than 1 is P(X< 1) = [tex]1 - e^{ - 0.3125×1}[/tex]

P(X< 1 ) = 1 - 0.745189

P(X<1)= 0.2684

The required probability is 0.2684.

For more information about exponential distribution visit :

https://brainly.com/question/11843641

#SPJ4

EXAMPLE: Mode for a Distribution
Find the median for the distribution.
VALUE.....1....2...3...4....5
Freq.........4....3...2...6....8

Answers

The median of this distribution is 4.375.

To find the median of a distribution, we need to first arrange the values in order from smallest to largest along with their corresponding frequencies.

VALUE.....1....2...3...4....5

Freq.........4....3...2...6....8

There are a total of 23 observations in this distribution (4 + 3 + 2 + 6 + 8 = 23). Since the total frequency is an odd number, the median will be the value that is exactly in the middle when the observations are arranged in order.

To find this middle value, we need to first find the cumulative frequency for each value. The cumulative frequency is the sum of the frequencies up to and including that value.

VALUE.....1....2...3...4....5

Freq.........4....3...2...6....8

Cumulative Freq...4...7...9..15..23

The median will be the value that has a cumulative frequency of (23 + 1)/2 = 12. This value falls in the interval 4-5 since the cumulative frequency of 5 is greater than 12 and the cumulative frequency of 4 is less than 12.

To find the exact median value, we need to interpolate between the two values in the interval 4-5. We can use the following formula to find the median:

Median = L + [(n/2 - CF) / f] * w

where L is the lower limit of the interval, n is the total frequency, CF is the cumulative frequency up to the lower limit, f is the frequency of the interval, and w is the width of the interval.

For the interval 4-5, L = 4, n = 23, CF = 9, f = 8, and w = 1. The median can be calculated as:

Median = 4 + [(12 - 9) / 8] * 1 = 4.375

Therefore, the median of this distribution is 4.375.

Learn more about the median

https://brainly.com/question/28060453

#SPJ4

Question 34 Date 2pts Given: y = 3x2 - 23x + 10. At what value of x is the slope of tangent line to the curve equal to 122 If your answer is a fraction, write your final answer in two decimal places.

Answers

The slope of the tangent line to the curve is equal to 122 when x is approximately 24.17.


To find the value of x where the slope of the tangent line to the curve y = 3x^2 - 23x + 10 is equal to 122, we first need to find the derivative of y with respect to x. The derivative represents the slope of the tangent line at any given point.

Using the power rule, the derivative of y with respect to x (denoted as y') is:
y' = 6x - 23

Now we need to set y' equal to 122 and solve for x:
6x - 23 = 122

Add 23 to both sides:
6x = 145

Divide by 6:
x ≈ 24.17 (rounded to two decimal places)

So, the slope of the tangent line to the curve is equal to 122 when x is approximately 24.17.

Learn more about tangent line here: brainly.com/question/31326507

#SPJ11

Alvin correctly claimed that when two negative rational numbers are multiplied the result is greater than both of the numbers

Answers

No, Alvin's claim is incorrect when she claimed that when two negative rational numbers are multiplied, the result is greater than both of the numbers

Does multiplying two - rational numbers result in product >  two numbers?

No, it does not. When two negative rational numbers are multiplied, the result is positive, not greater than both of the numbers.

For example:

= -1/2 *  -1/3

= 1/6

The 1/6 is positive and less than both -1/2 and -1/3.

Read more about rational numbers

brainly.com/question/12088221

#SPJ1

Could you please help me with the following question? 2+2+2*10-(5*2)

Answers

The expression 2+2+210-(5*2) equals 14.

The expression 2+2+2 x 10-(5 x 2) can be solved using the order of operations, also known as PEDMAS.

In the given expression, we don't have any parentheses or exponents, so we move to the multiplication and division step. We have 2 multiplications, 210 and 52. Since multiplication comes before addition and subtraction, we must perform these multiplications first. Therefore, we get:

2 + 2 + 20 - 10

Now, we have only addition and subtraction left. According to the order of operations, we perform these operations from left to right. Therefore, we get:

4 + 20 - 10

Now, we can perform the addition and subtraction, which gives us the final answer:

14

To know more about PEDMAS here

https://brainly.com/question/24086845

#SPJ4

The Taylor series expansion of some polynomial function g(x,y) about the point (1,2) can be written as follows, 1 - (x - 1) +(y-2) + 2(x - 1)+ 3(0 - 1)(y-2) - (y-2). i) Write down all second order partial derivatives of g at the point (1,2). ii) Write down the gradient of g at the point (1, 2) and find the tangent plane to the surface defined by the equation z = g(x, y) at the point (1,2,1).

Answers

a.In the Taylor series expansion the second-order partial derivatives of g at the point (1,2) are gxx = 2, gyy = -2, and gxy = 3.

b. The gradient of g at the point (1,2) is z = 2x - 2y + 1.

a. To find the second-order partial derivatives of g at (1,2), we take the partial derivatives of each term of the given polynomial expansion. The resulting second-order partial derivatives are d²g/dx²=2, d²g/dy²=-2, and d²g/dxdy=3.

b. To find the gradient of g at (1,2), we take the partial derivatives of g with respect to x and y and evaluate them at (1,2). The resulting gradient is ∇g(1,2) = <1, -1>.

To find the equation of the tangent plane to the surface defined by z=g(x,y) at (1,2,1), we use the point-normal form of a plane equation. The normal vector is the gradient of g at (1,2), so the equation of the tangent plane is (x-1) - (y-2) + z-1 = 0.

Learn more about the Taylor series at

https://brainly.com/question/29733106

#SPJ4

On a recent fishing trip, James caught 25 smallmouth bass (a type of fresh water fish). Suppose it is known the distribution of the weights of smallmouth bass is normal with a mean of 2.5 pounds and a standard deviation of 1.211 pounds. What is the probability that the average weight of the fish caught by James would be greater than 3 pounds?

The posted answer is 1.97% but there is no solution.

Answers

The probability that the z-score is greater than 2.064. Using a standard normal table or calculator, we find that the probability is approximately 1.97%. This means there is a 1.97% chance that the average weight of the fish caught by James would be greater than 3 pounds.

To solve this problem, we can use the central limit theorem, which states that the distribution of the sample means approaches a normal distribution as the sample size increases, regardless of the shape of the population distribution. We can also use the z-score formula to standardize the sample mean.

First, we need to calculate the standard error of the mean (SEM) using the formula:

SEM = standard deviation / square root of sample size
SEM = 1.211 / square root of 25
SEM = 0.2422

Next, we can calculate the z-score using the formula:

z = (sample mean - population mean) / SEM
z = (3 - 2.5) / 0.2422
z = 2.066

Finally, we can use a standard normal distribution table (or a calculator that has a normal distribution function) to find the probability of getting a z-score greater than 2.066. The probability is approximately 0.0197 or 1.97%.

Therefore, the probability that the average weight of the fish caught by James would be greater than 3 pounds is 1.97%.
To answer your question, we need to use the normal distribution and the given information to calculate the probability. Here are the terms you mentioned:

- Smallmouth bass: a type of freshwater fish
- Mean: 2.5 pounds
- Standard deviation: 1.211 pounds
- Number of fish caught by James: 25
- We need to find the probability that the average weight is greater than 3 pounds.

To solve this, we can use the z-score formula for the sample mean:

z = (X - μ) / (σ / √n)

Where:
- X is the sample mean (3 pounds)
- μ is the population mean (2.5 pounds)
- σ is the population standard deviation (1.211 pounds)
- n is the sample size (25 fish)

Calculating the z-score:

z = (3 - 2.5) / (1.211 / √25)
z = 0.5 / (1.211 / 5)
z = 0.5 / 0.2422
z ≈ 2.064

Now, we need to find the probability that the z-score is greater than 2.064. Using a standard normal table or calculator, we find that the probability is approximately 1.97%. This means there is a 1.97% chance that the average weight of the fish caught by James would be greater than 3 pounds.

To learn more about probability, click here:

brainly.com/question/30034780

#SPJ11

Find all unknown measures in the triangle. If necessary, round answers to the nearest tenth

Answers

If the perimeter and two-sides of the triangle are 18c, 4cm and 5cm, then the unknown third-side is 9cm.

The "Peri-meter" of a triangle is defined as the sum of lengths of all 3 sides.

Let the unknown third side of the triangle be denoted as "x".

We know that, "first-side" of triangle is = 4 cm,

"Side-2" of triangle = 5 cm,

"Peri-meter" of the triangle is given to be 18 cm,

The Perimeter equation is written as:

⇒ Side 1 + Side 2 + Side 3 = Perimeter,

⇒ 5 + 4 + x = 18,

⇒ 9 + x = 18,

⇒ x = 18 - 9,

⇒ x = 9.

Therefore, the measure of the unknown third side of triangle is 9 cm.

Learn more about Perimeter here

https://brainly.com/question/21436630

#SPJ4

The given question is incomplete, the complete question is

The two sides of the triangle are 4cm and 5cm , the perimeter of the triangle is 18cm, find the measure of the unknown third side.

If the infinite series
S= E (-1)^n+1 (2/n)
is approximated by Pk= E (-1)^n+1 (2/n)
What is the least value of k for which the alternating series error bound guarantees that [S-Pk}= 3/100

Answers

The least value of k for which the alternating series error bound guarantees that [S-Pk}= 3/100 is k = 34. To get the least value of k for which the alternating series error bound guarantees that [S-Pk}= 3/100,

We need to use the formula for the alternating series error bound: |S-Pk| ≤ a(k+1)
where a is the absolute value of the term following the last one included in Pk. In this case, the last term included in Pk is the kth term, which is (-1)^(k+1) * 2/k. Therefore, a = 2/(k+1).
We want to find the least value of k such that a(k+1) ≤ 3/100. Substituting a and simplifying, we get: 2(k+1)/(k+2) ≤ 3/100
Multiplying both sides by (k+2) and simplifying, we get: 200k + 400 ≤ 3k^2 + 6k
Rearranging and simplifying, we get: 3k^2 - 194k - 400 ≥ 0
Solving this quadratic inequality using the quadratic formula, we get: k ≤ (194 + sqrt(4*3*400+194^2))/6 or k ≥ (194 - sqrt(4*3*400+194^2))/6
k ≤ 33.053 or k ≥ 63.947
Therefore, the least value of k for which the alternating series error bound guarantees that [S-Pk}= 3/100 is k = 34.

Learn more about alternating series here, https://brainly.com/question/30400869

#SPJ11

Given f′(x)=12x^2+12x with f(2)=10. Find f(−1).

Answers

The value of f(-1) is 2

What is a function?

A function is defined as a relation between a set of inputs having one output each. In simple words, a function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range. A function is generally denoted by f(x) where x is the input. The general representation of a function is y = f(x).

The function is :

[tex]f'(x) = 12x^2+12x[/tex]

We integrate the above function, we get :

[tex]f(x) = 4x^3+6x^2+c[/tex] ....(1)

That's f(x) . so when x = 2 and y = 10 inside this function.

10 = [tex]4(2)^3+6(2)^2+c[/tex]

10 = 32 + 24 + c

10 = 56 + c

10 - 56 = c

c = - 46

Again, We have to find the f(-1)

And, Plug the value of x = -1 in equation (1)

f(-1) = [tex]4(-1)^3+6(-1)^2+c[/tex]

f(-1) = -4 + 6

f(-1) = 2

The original function is therefore [tex]f(x) = 4x^3+6x^2+c[/tex].

Learn more about Function at:

https://brainly.com/question/29114878

#SPJ4

Sonia and Roberto are playing. They play alternately removing 1, 2, 3, 4 or 5 tiles from a stack. Whoever takes the last tile or tiles loses. At one point in the game, there are ten tiles left in the pile and it is Sonia's turn to remove some tiles. The number of chips that Sonia must leave Roberto to be sure that she will win is:

Answers

Answer:

i want to say A, 9.

Step-by-step explanation:

The answer is (A) 9.

If Sonia removes 1 tile from the pile of 10 tiles, there will be 9 tiles left.If Roberto removes 1 tile, then there will be 8 tiles left. Sonia can remove 2 tiles, leaving 6 tiles for Roberto.

If Roberto removes 1, 2, or 3 tiles, then there will be 5, 4, or 3 tiles left, respectively. Sonia can then remove enough tiles to leave Roberto with a multiple of 6 tiles, ensuring a win on her next turn.For example, if Roberto removes 3 tiles, then there will be 7 tiles left. Sonia can remove 2 tiles, leaving 5 tiles for Roberto. Then, regardless of how many tiles Roberto removes, Sonia can always remove enough tiles to leave Roberto with a multiple of 6 tiles on his turn, ensuring a win on her next turn.

a. prove that accumulation function a(t) applies to real numbers t > 0

b. prove that accumulation function a(t) applies to real numbers t > 0

c. prove that for 0 < t < 1, then ..., where t real numbers

d. prove that for t > 1, then ..., where t real numbers

Answers

a. The accumulation function a(t) applies to real numbers t > 0

b. The accumulation function a(t) applies to real numbers t > 0

c. For any 0 < t < 1, the accumulation function a(t) approaches 0 as t approaches 0.

d. For any t > 1, the accumulation function a(t) is proportional to 2t and approaches 2t * f(c) as t approaches infinity.


a. To prove that the accumulation function a(t) applies to real numbers t > 0, we need to show that it makes sense to evaluate the function for any positive real value of t.
The accumulation function a(t) is defined as the integral from 0 to t of some function f(x). Since integrals are defined for any continuous function over a closed interval, we know that f(x) must be a continuous function over the interval [0, t].
Furthermore, the domain of integration is the closed interval [0, t], which includes all real numbers between 0 and t (including 0 and t themselves). Therefore, the accumulation function a(t) applies to all real numbers t > 0.
b. This is the same as part a, so the answer is the same: the accumulation function a(t) applies to all real numbers t > 0.
c. To prove that for 0 < t < 1, then ..., where t is a real number, we need to evaluate the accumulation function a(t) for values of t between 0 and 1.
Let's assume that f(x) is a continuous function over the interval [0, 1]. Then, the accumulation function a(t) is given by:
a(t) = ∫[0,t] f(x) dx
Since 0 < t < 1, we know that the interval [0, t] is a subset of the interval [0, 1]. Therefore, we can use the Mean Value Theorem for Integrals to say that there exists some value c in [0, t] such that:
a(t) = t * f(c)
Since f(x) is a continuous function over [0, 1], we know that it attains a maximum value of M and a minimum value of m over the interval [0, 1]. Therefore, we can say that:
m * t ≤ a(t) ≤ M * t
This means that the accumulation function a(t) is bounded between two values that are proportional to t. As t approaches 0, these bounds approach 0 as well, so we can say that:
lim(t → 0) a(t)/t = 0
Therefore, for any 0 < t < 1, the accumulation function a(t) approaches 0 as t approaches 0.
d. To prove that for t > 1, then ..., where t is a real number, we need to evaluate the accumulation function a(t) for values of t greater than 1.
Let's assume that f(x) is a continuous function over the interval [0, t]. Then, the accumulation function a(t) is given by:
a(t) = ∫[0,t] f(x) dx
Since t > 1, we know that the interval [0, t] is a subset of the interval [0, 2t]. Therefore, we can use the Mean Value Theorem for Integrals to say that there exists some value c in [0, 2t] such that:
a(t) = ∫[0,t] f(x) dx = ∫[0,2t] f(x) dx - ∫[t,2t] f(x) dx = 2t * f(c) - ∫[t,2t] f(x) dx
Since f(x) is a continuous function over the interval [0, t], we know that it attains a maximum value of M and a minimum value of m over this interval. Therefore, we can say that:
m * t ≤ ∫[t,2t] f(x) dx ≤ M * t
This means that the second term in the equation for a(t) is bounded between two values that are proportional to t. As t approaches infinity, these bounds approach 0 as well, so we can say that:
lim(t → ∞) ∫[t,2t] f(x) dx/t = 0
Therefore, for any t > 1, the accumulation function a(t) is proportional to 2t and approaches 2t * f(c) as t approaches infinity.

To learn more about function, refer:-

https://brainly.com/question/12431044

#SPJ11

4. At a bookstore, paperbacks sell for $8 each, including tax.
a) Write an algebraic expression for the cost of n paperbacks.
b) A membership in the club costs $10.Members can buy paperbacks for only $6 each. Write an algebraic expression for the cost of paperbacks for a Book Club member,including a membership.
c) What is the difference between the cost of 12 books purchased with and without a membership?Show your work​

Answers

a) Cost of n paperbacks = 8n

b) Cost of paperbacks for a Book Club member, including a membership is represented by algebraic equation = 10 + 6n

c) Difference = $14 (96 - 82), Book Club membership saves money.

What is Cost?

Cost refers to the amount of money or resources that are required to produce, purchase, or obtain a product or service. It is the value given up in exchange for something.

What is algebraic expression?

An algebraic expression is a combination of variables, constants, and mathematical operations, such as addition, subtraction, multiplication, and division, that can be simplified and evaluated.

According to the given information:

a) The cost of n paperbacks can be represented by the algebraic expression: 8n. This expression means that the cost of n paperbacks is equal to the unit price of $8 multiplied by the number of paperbacks purchased.

b) The cost of paperbacks for a Book Club member, including a membership can be represented by the algebraic expression: 10 + 6n. This expression means that the cost of paperbacks for a Book Club member is equal to the membership fee of $10 plus the discounted unit price of $6 multiplied by the number of paperbacks purchased.

c) Without the Book Club membership, the cost of 12 books would be 12 x 8 = $96. With the Book Club membership, the cost of 12 books would be 10 (membership fee) + 6(12) = $82. Therefore, the difference between the cost of 12 books purchased with and without a membership is $14 (96 - 82). This shows that being a Book Club member results in a significant discount on the cost of paperbacks.

To know more about cost,algebraic expression visit:

https://brainly.com/question/28122980

#SPJ1

If the standard deviation for a Poisson distribution is known to be 3.60, the expected value of that Poisson distribution is:
a. 12.96
b. approximately 1.90
c. 7.2
d. 3.60
e. 8.28

Answers

The expected value of that Poisson distribution is 12.96. So, correct option is A.

The expected value of a Poisson distribution is given by lambda, where lambda is the mean or average number of occurrences in the given interval. In a Poisson distribution, the variance is equal to the mean, so the standard deviation is the square root of the mean.

Thus, if the standard deviation is known to be 3.60, we can find the mean as follows:

Standard deviation = √(mean)

Squaring both sides, we get:

Variance = mean

Substituting the given standard deviation, we have:

3.60 = √(mean)

Squaring both sides again, we get:

12.96 = mean

Therefore, correct option is A.

To learn more about Poisson click on,

https://brainly.com/question/17280826

#SPJ4

helpFind the area of the region included between the parabolas y2 = 4(p+1)(x + p + 1), and y2 = 4(p2 + 1)(p2 + 1 - x)

Answers

The area of the region included between the parabolas:  [tex]A = 4 [(2/3)p^2\sqrt{p } + (2/3)\sqrt{p } - (2/5)p^2\sqrt{p}[/tex]

To find the area of the region between the parabolas [tex]y^2 = 4(p+1)(x + p+ 1)[/tex] and [tex]y^2 = 4(p^2 + 1)(p^2 + 1 - x),[/tex]  we need to first graph the two parabolas and determine the intersection points.

Then, we can integrate the difference between the y-coordinates of the two parabolas over the range of x where they intersect.

Let's start by graphing the two parabolas:

[tex]y^2 = 4(p+1)(x + p + 1)[/tex] is a parabola that opens to the right and has its vertex at the point (-p-1, 0).

The distance between the vertex and the focus is p+1, and the distance between the vertex and the directrix is also p+1.

[tex]y^2 = 4(p^2 + 1)(p^2 + 1 - x)[/tex] is a parabola that opens to the left and has its vertex at the point (p^2+1, 0).

The distance between the vertex and the focus is [tex]\sqrt{ (p^2+1) }[/tex], and the distance between the vertex and the directrix is also [tex]\sqrt{(p^2+1). }[/tex]

Now, we need to find the intersection points of the two parabolas. Setting the two equations equal to each other, we get:

[tex]4(p+1)(x+p+1) = 4(p^2+1)(p^2+1-x)[/tex]

Simplifying and rearranging, we get:

[tex]x = p^3 + p^2 - p - 1[/tex]

Substituting this value of x into either of the original equations, we get:

[tex]y^2 = 4(p+1)(p^2+2p)[/tex]

Simplifying, we get:

[tex]y^2 = 4p(p+1)^2[/tex]

Taking the square root of both sides, we get:

y = ± 2(p+1)√p

Therefore, the two parabolas intersect at the points [tex](p^3+p^2-p-1, 2(p+1)\sqrt{p } )[/tex] and [tex](p^3+p^2-p-1, -2(p+1)\sqrt{p} ).[/tex]

Now, we can find the area of the region between the parabolas by integrating the difference between the y-coordinates of the two parabolas over the range of x where they intersect.

This gives:

[tex]A = 2\int [p^3+p^2-p-1, p^2+1] [2(p+1)√p - 2\sqrt{(p(p+1)^2)} ] dx[/tex]

Simplifying, we get:

[tex]A = 4 \int [p^3+p^2-p-1, p^2+1] (p-1)\sqrt{p} dx[/tex]

Integrating with respect to x, we get:

[tex]A = 4 [(2/3)(p^2+1)\sqrt{p} - (2/5)(p^2+1)p^{3/2} + (1/2)(p^2+1)^{3/2} - (2/3)(p^3+p^2-p-1)\sqrt{p} + (2/5)(p^3+p^2-p-1)p^{3/2} - (1/2)(p^3+p^2-p-1)^{3/})][/tex]

Simplifying, we get:

[tex]A = 4 [(2/3)p^2\sqrt{p } + (2/3)\sqrt{p } - (2/5)p^2\sqrt{p}[/tex]

For similar questions on area.

https://brainly.com/question/25965491

#SPJ11

Find D if a1=-1 and a8=41

Answers

Answer is D=6

Hope this helps have a nice day

The function f has a first derivative given by f′(x)=x(x−3)2(x+1). At what values of x does f have a relative maximum?
A -1 only
B 0 only
C -1 and 0 only
D -1 and 3 only
E -1, 0, and 3

Answers

The values of x where f has a relative maximum are -1 and 3. The answer is D, -1 and 3 only.

To determine the values of x where the function f has a relative maximum, we need to analyze the sign of the derivative in the neighborhood of each critical point.

The critical points of f correspond to the values of x where the derivative is equal to zero or undefined. In this case, the derivative is undefined only at x = -1, where there is a vertical asymptote.

To find the values of x where the derivative is zero, we set f'(x) = 0 and solve for x:

[tex]f'(x) = x(x-3)^2[/tex](x+1) = 0

This equation is satisfied when x = 0 or x = 3, since these are the only values that make one of the factors equal to zero. Therefore, these are the only two critical points of f.

Next, we can use the first derivative test to determine the nature of each critical point. This involves checking the sign of the derivative in the interval to the left and right of each critical point.

For x = -1, the derivative is undefined to the left and right, but we can still examine the sign of f'(x) in the vicinity of -1. For example, if we consider values of x slightly to the left of -1 (say, x = -1.1), we see that f'(x) is negative. Similarly, if we consider values of x slightly to the right of -1 (say, x = -0.9), we see that f'(x) is positive. This means that f has a relative maximum at x = -1.

For x = 0, the derivative is negative to the left and positive to the right. This means that f has a relative minimum at x = 0.

For x = 3, the derivative is positive to the left and negative to the right. This means that f has a relative maximum at x = 3.

Therefore, the values of x where f has a relative maximum are -1 and 3. The answer is D, -1 and 3 only.

To learn more about undefined visit:

https://brainly.com/question/10969140

#SPJ11

Use DEF to fine ER please thank you!!

Answers

The value of RE for the given triangle is 3 units.

What is Pythagoras Theorem?

A key idea in geometry known as the Pythagorean theorem outlines the relationship between the sides of a right triangle. It asserts that the square of the length of the longest side, known as the hypotenuse, is equal to the sum of the squares of the two shorter sides of a right triangle. In other words, if a and b are the measurements of a right triangle's two shorter sides and c is the measurement of the hypotenuse,

Triangle DRF is an right angle triangle.

Using Pythagoras Theorem we have:

c² = a² + b²

DF² = 27² + 9²

DF² = 729 + 81

DF² = 810

DF = √(810)

DF = 9 √(10)

Now, the value of DF = 9 sqrt(10).

In triangle DEF we have:

DE² = (9 √(10))² + (3 √(10))

DE² = 81 * 10 + 9 * 10

DE² = 900

DE = 30

Now, DE = DR + RE

Given, DR = 27 substituting the value:

Thus,

30 = 27 + RE

RE = 3

Hence, the value of RE for the given triangle is 3 units.

Learn more about Pythagoras Theorem here:

https://brainly.com/question/21926466

#SPJ1

A model rocket with a mass of 0.1kg is pushed by a rocket motor and has an acceleration of 35m/s2. What is the amount of the force the engine exerted on the rocket in Newtons?

Answers

The amount of force that the motor exerts on the rocket is 3.5 Newtons.

This is an exercise in Newton's second law is one of the fundamental laws of physics and is used to describe the relationship between force, mass, and acceleration of an object. This law can be expressed mathematically as F = ma, where F is the net force applied to an object, m is its mass, and a is the acceleration produced. The law states that the acceleration experienced by an object is directly proportional to the net force acting on it and inversely proportional to its mass.

In other words, if the force acting on an object increases, its acceleration will also increase, and if the object's mass increases, its acceleration will decrease. This mathematical relationship is very useful in understanding how objects move and how forces affect their motion. Newton's second law is especially important for dynamics, the branch of physics that deals with the study of the movement of objects and its causes.

The law of force can be intuitively explained by observing how an object moves when a force is applied to it. If a force is applied to an object, such as pushing a box, the box will start to move in the direction of the applied force. If a larger force is applied, the box will move faster, and if a smaller force is applied, the box will move more slowly. If the box is heavier, it will take more force to move it at the same speed as a lighter box.

Newton's second law also states that the direction of the acceleration produced is the same as the direction of the applied force. For example, if a box is pushed to the right, the box will move to the right. If the box is pushed up, the box will move up. This relationship between the direction of force and the direction of acceleration is important in understanding how objects move in different situations.

In addition, Newton's second law is also important in understanding how forces are applied in different situations. For example, if a force is applied to a box at an angle, the box will move in a different direction than the applied force due to the breakdown of the force into horizontal and vertical components. The law of force can be used to calculate the components of force and determine how the object will move.

Newton's second law can also be used to understand the relationship between force and motion in nature. The law of force applies to all objects in the universe and is essential in understanding how planets, stars, and other celestial bodies move. For example, the gravitational force acting between two objects depends on the objects' mass and the distance between them, and this force determines how the objects move in space.

We solve the exercise:

It tells us a model rocket has a mass of 0.1 kg, is pushed by the engine, and has an acceleration of 35 m/s².

It is asking us to calculate, what is the amount of force that the engine exerted on the rocket?

We apply the formula F = m × a. We do not clear because it asks us to calculate the force, where:

F = Calculated force in Newton (N).

m = calculated mass in Kilograms (kg).

a = acceleration calculated in meters per second squared (m/s^2).

Now, we substitute data in the formula of Newton's second law, and we solve;

F = m  × a

F = 0.1 kg × 35 m/s²

F = 3.5 N

The amount of force that the motor exerts on the rocket is 3.5 Newtons.

ヘ( ^o^)ノ\(^_^ )If you want to learn more about physics, I share this link to complement your learning:

https://brainly.com/question/18994284

a club with 20 women and 17 men needs to choose three different members to be president, vice president, and treasurer. (a) in how many ways is this possible?

Answers

There are 46,620 number of ways to choose three different members to be president, vice president, and treasurer from a club with 20 women and 17 men.

In order to determine the number of ways three different members can be choose for given position are as follows:

1: Calculate the total number of members in the club.

Total members = Women + Men = 20 + 17 = 37

2: Determine the number of ways to choose the president.

Since there are 37 members, there are 37 options for president.

3: Determine the number of ways to choose the vice president.

After the president has been chosen, there are 36 remaining members to choose from for vice president.

4: Determine the number of ways to choose the treasurer.

After choosing both the president and vice president, there are 35 remaining members to choose from for treasurer.

Step 5: Calculate the total number of ways to choose the three different members.

Total ways = Ways to choose president × Ways to choose vice president × Ways to choose treasurer = 37 × 36 × 35 = 46,620

Learn more about Number of ways:

https://brainly.com/question/4658834

#SPJ11

6) What are vertical angles? What is
the sum of all the angles of a triangle?

Answers

Two angles that form two pairs of opposing rays are called vertical angles. A triangle's total angles are always equal to 180 degrees.

What is an opposite ray?

Two rays that originate from the same location and go in completely different directions are said to be opposing rays. As a result, the two rays combine to form a single straight line that passes through the shared terminal Q2.

Two angles that form two pairs of opposing rays are called vertical angles. These might be considered as the opposing angles of an X.

A triangle's total angles are always equal to 180 degrees. This indicates that the outcome will be as follows if we sum the measurements of all three angles of a triangle

To know more about vertical angles visit:

brainly.com/question/24460838

#SPJ1

True and False: You have a model Yi = Xi⊤β + ε, and you fit itby OLS. If the OLS residuals are uncorrelated with X, our estimateof β are unbiased.

Answers

In linear regression, unbiasedness of OLS estimator for $\beta$ is guaranteed

True.

In linear regression, unbiasedness of OLS estimator for $\beta$ is guaranteed when the following conditions hold:

The regression model is correctly specified and the true model is linear in the parameters.

The errors are homoscedastic and normally distributed with mean zero and constant variance.

The regressors are not perfectly collinear.

The expected value of the errors given the values of the regressors is zero.

Under these conditions, if the OLS residuals are uncorrelated with the regressors, then the estimate of $\beta$ obtained from OLS is unbiased.

learn about linear regression,

https://brainly.com/question/30401933

#SPJ11

Assuming that Ï is 2.75 and the sample size is 25, the following confidence interval was created:
(3.37, 5.15)
What confidence level was used?
90.2%
89.4%
88.8%
91.6%
92.0%

Answers

Based on the given information, we can determine that the confidence level used was 89.4%.


To determine the confidence level used, we first need to calculate the margin of error.
Margin of Error (ME) = (Upper Limit - Lower Limit) / 2
ME = (5.15 - 3.37) / 2
ME = 0.89

Now, we can use the z-score formula to find the confidence level:
Z = ME / (σ / √n)
Z = 0.89 / (2.75 / √25)
Z = 0.89 / (2.75 / 5)
Z = 0.89 / 0.55
Z ≈ 1.618

Now we will look up this z-score in a standard normal (z) table or use a calculator with an inverse cumulative distribution function to find the corresponding percentage, which is approximately 89.4%.

So, the confidence level used is 89.4%.

learn more about confidence level

https://brainly.com/question/22851322

#SPJ11

A random sample of n = 9 structural elements is tested for compressive strength. We know the true mean value for compressive strength μ = 5500 psi and the standard deviation is σ = 100 psi. Find the probability that the sample mean compressive strength exceeds 4985 psi.

Answers

The probability that the sample mean compressive strength exceeds 4985 psi is approximately 1.

We need to find the probability

Calculate the standard error of the sample mean.

Standard Error (SE) = σ / √n = 100 / √9

                               = 100 / 3

                               = 33.33 psi

Calculate the z-score of the sample mean.

z = (sample mean - μ) / SE = (4985 - 5500) / 33.33

                                           = -515 / 33.33

                                           = -15.45

Find the probability using the z-score.

Since the z-score is -15.45, which is very far from the mean in the left tail, the probability of the sample mean

compressive strength exceeding 4985 psi is almost 1.

So, the probability that the sample mean compressive strength exceeds 4985 psi is approximately 1.

for such more question on probability

https://brainly.com/question/13604758

#SPJ11

solve for P(B | A). Write the answer as a percent rounded to the nearest tenth
A=16.9%
B=?
P(A & B) = 4.2%

Answers

The probability of B given A is approximately 24.9%.

The probability is typically defined as the proportion of positive outcomes to all outcomes in the sample space. Probability of an event P(E) = (Number of positive outcomes) (Sample space) is how it is written.

We can use the formula for conditional probability to solve for P(B | A):

P(B | A) = P(A & B) / P(A)

Substituting the given values, we get:

P(B | A) = 4.2% / 16.9%

        = 0.2485207100591716

To convert this to a percentage rounded to the nearest tenth, we can multiply by 100 and round to one decimal place:

P(B | A) ≈ 24.9%

Therefore, the probability of B given A is approximately 24.9%.

Learn more about probability ,

https://brainly.com/question/30034780

#SPJ4

Other Questions
The toll on a highway costs about $0.04 per mile.Find the cost for a 43.25-mile section of highway. 1. Sierra has 8 belts, 4 handbags, and 12 necklaces. In how many ways can she select 1 of each to accessorize her outfit? The null and alternate hypotheses are:H0: 1 2H1: 1 > 2A random sample of 27 items from the first population showed a mean of 114 and a standard deviation of 15. A sample of 15 items for the second population showed a mean of 106 and a standard deviation of 9. Use the 0.025 significant level.Find the degrees of freedom for unequal variance test. (Round down your answer to the nearest whole number.)State the decision rule for 0.025 significance level. (Round your answer to 3 decimal places.)Compute the value of the test statistic. (Round your answer to 3 decimal places.)What is your decision regarding the null hypothesis? Use the 0.03 significance level. 24) How many moles of N2O4 are in 76.3 g N2O4? The molar mass of N2O4 is 92.02 g/mol.A) 7.02 10^3 molesB) 1.42 10^-4 molesC) 1.00 moleD) 1.21 molesE) 0.829 moles In an arctic ecosystem, energy flows from arctic sedge to arctic hares to rough-legged hawks. Which organism has the greatest amount of energy available to it?Responsesrough-legged hawkarctic sedgearctic hare Bjorn is making aush, and he does not have enough of all the ingredients. He decides to make 5/6 of a whole recipe, which means he uses 1 1/4 L of water.How much water is in a whole recipe?____? 2 When Acme Dynamite produces 200 units of output, its variable cost is $3,000, and its fixed cost is $500. It sells each unit of output for $30. When Acme Dynamite produces 200 units of output, its profit is ______. A. $2,000 B. $6,000 C. $2,500 D 3,000 Click to see the list of universal themes in PDF or word-processing format. Then choose the universal theme best shown by this excerpt. the tension between freedom and responsibility humanitys search for meaning in the world the struggle for equality the consuming power of guilt a spherical balloon is being filled with helium at a rate of 2cubic inches per second. At what rate is the surface areaincreasing when there are 288pi cubic inches of helium in theballoon? You've decided to begin scanning against a target organization but want to keep your efforts as quiet as possible. Which IDs evasion technique splits the TCP header among multiple packets?A. FragmentingB. IP spoofingC. Proxy scanningD. Anonymizer Isenheim altarpieceMatthias Grnewald. c. 1512-1516 C.E. Oil on woodEmphasizing the suffering and anguish of Christ and his mother's angst. With intense colors and dramatic lighting throughout, Grunewald included a Lamentation in the predella and Saints Sebastian and Anthony on the fixed wings. What is the difference between SLA, OLA, and Underpinning Contracts? considering order of magnitude calculations, how much longer does hydrogen last as a fuel source in sun when compared to helium as a fuel source for post main sequence sun? The earliest culture in North America dating between 13,200 and 11,900 BP that is recognized for its successful, indigenous adaptation is called:-Kenniwick woman - Clovis -Kennewick man -Encino man Which addition to sentence 3 correctly ties the ideas together? A. Because PV technologies use both direct and scattered sunlight to create electricity, the solar resource across the United States is ample for home solar electric systems. B. While PV technologies use both direct and scattered sunlight to create electricity, the solar resource across the United States is ample for home solar electric systems. C. That PV technologies use both direct and scattered sunlight to create electricity, the solar resource across the United States is ample for home solar electric systems. D. So PV technologies use both direct and scattered sunlight to create electricity, the solar resource across the United States is ample for home solar electric systems. Write a program named CountVowels that accepts a phrase from the user and counts the number of vowels in the phrase. For this exercise, count both uppercase and lowercase vowels, but do not consider y to be a vowel. At what time did Santa Anna begin his attack ont he Alamo? 80. Minimum speed signs are designed toA. Show current local road conditions.B. Assure pedestrian safety.C. Keep traffic flowing smoothly.D. Test future traffic signal needs. (x+4)(2x+9)js help a girl out How far does an armadillo move relative to the slab on the x axis on the floor?