Apply the inscribed angle theorem.
What is the measure of angle C?
What is the measure of angle B?
What is the measure of angle BSD?
What is the measure of angle CSE?
What is the measure of angle E?
What is the measure of arc BC?

Inverse Laplace transform of the function F(s) = (-4s + 6) / (s² - 8s + 20) is  [tex]-4e^{4t} cos (2t)[/tex] + [tex]e^{4t} sin (2t)[/tex].

We have the function,

F(s) = (-4s + 6) / (s² - 8s + 20)

Inverse Laplace Transform of the given function is,

L⁻¹ (F(s)) = L⁻¹ [(-4s + 6) / (s² - 8s + 20)]

             = L⁻¹ [(-4s + 4 + 2) / (s² - 8s + 16 + 4)]

             = L⁻¹ [{-4(s - 1) + 2} / {(s - 4)² + 2²}]

             = L⁻¹ [-4(s - 1) / (s - 4)² + 2²] + L⁻¹ [ 2 / (s - 4)² + 2²]

             = -4 L⁻¹ [(s - 1) / (s - 4)² + 2²] + L⁻¹ [ 2 / (s - 4)² + 2²]

             = [tex]-4e^{4t} cos (2t)[/tex] + [tex]e^{4t} sin (2t)[/tex]

Hence the inverse Laplace transform of the given function is  [tex]-4e^{4t} cos (2t)[/tex] + [tex]e^{4t} sin (2t)[/tex].

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Upon answering the query  All x values that fall within the range [-5, -1] and meet the inequality are represented by the darkened rectangle.

A connection between two words or variables that is not equal in mathematics is referred to as an inequality. Thus, inequity results from imbalance. In mathematics, an inequality establishes the connection between two non-equal numbers. Egality and inequality are not the same. The not equal symbol () is most frequently used to indicate that two numbers are not equal. Values of any size can be contrasted using a variety of inequalities. By changing the two sides until just the variables are left, many straightforward inequalities may be solved. However, a variety of factors support inequality: Both sides' negative values are split or added. Exchange the left and the right.

inequality |x+3| - 2 ≤ 0 can be

[tex]| x + 3 | - 2 \leq 0\\| x + 3 | \leq 2\\-2 \leq x + 3 \leq 2\\-5 \leq x \leq -1\\[/tex]

The range [-5, -1] is therefore the solution set for the inequality.

You may draw the points -5 and -1 on a number line and darken the area in between them to graph the solution set. The diagram would resemble:

     ---------------------------

     -5          -3          -1

All x values that fall within the range [-5, -1] and meet the inequality are represented by the darkened rectangle.

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The single solution for the inequality is: x=-4

The graph of the inequality can be drawn by first plotting the points -5 and -1 on the number line and then shading the interval between them.

What is inequalities?

In mathematics, an inequality is a mathematical statement that indicates that two expressions are not equal. It is a statement that compares two values, usually using one of the following symbols: "<" (less than), ">" (greater than), "≤" (less than or equal to), or "≥" (greater than or equal to).

The inequality |x+3|-2<=0 can be rewritten as:

|x+3|<=2

This means that the distance between x and -3 is less than or equal to 2.

To find the solution set, we can split the inequality into two cases:

Case 1: x+3>=0

In this case, the inequality becomes:

x+3<=2

Solving for x, we get:

x<=-1

So, for x>=-3, the solution set is:

-3<=x<=-1

Case 2: x+3<0

In this case, the inequality becomes:

-(x+3)<=2

Solving for x, we get:

x>=-5

So, for x<-3, the solution set is:

x>=-5

Combining the two solution sets, we get:

-5<=x<=-1

Therefore, the single solution for the inequality is:

x=-4

The graph of the inequality can be drawn by first plotting the points -5 and -1 on the number line and then shading the interval between them. The point -4 should be included in the shaded interval.

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The volume of a solid generated by rotating a region about the x-axis is an important mathematical concept that can be applied in many real-world situations.

The volume of a solid is a measure of the amount of space that the solid takes up in three-dimensional space.

To find the volume of the solid generated when a region is bounded by an equation and revolved around the x-axis, we use a mathematical formula known as the "method of cylindrical shells."

This method involves slicing the solid into thin cylindrical shells, and then finding the volume of each individual shell. The sum of the volumes of the shells will equal the total volume of the solid.

The formula for the volume of a cylindrical shell is given by

=> V = 2πrh,

where r is the radius of the shell, h is the height of the shell, and π is the mathematical constant pi.

To use the method of cylindrical shells, we need to first determine the top and bottom boundaries of the region, and then graph the region.

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Any point on the line y = 2 has the form (x, 2), where x is any real number.

Points that have a y-coordinate of 2 lie on the horizontal line y = 2. In the coordinate plane, the y-coordinate represents the vertical distance of a point from the x-axis.

Therefore, any point that lies on the line y = 2 has a y-coordinate of 2, which means it is 2 units above the x-axis.

To find points that have a y-coordinate of 2, we can simply list out the coordinates of any point that lies on the line y = 2.

For example, some points that have a y-coordinate of 2 are:

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A table of equivalent ratios for Allison's car is as follows:

Miles        Gallons

50                 1

100                2

200                4

The data points are plotted on the coordinate axes of the graph shown in the image attached below.

In Mathematics, a proportional relationship can be represented by the following mathematical expression:

x = ky

Where:

In order to have a proportional relationship and equivalent ratios, the variables x and y must have the same constant of proportionality. Therefore, we would determine the constant of proportionality (k) as follows:

Constant of proportionality (k) = y/x

Constant of proportionality (k) = 4/200

Constant of proportionality (k) = 1/50.

When hours y = 1, the number of miles x is given by:

y = kx

1 = 1/50 × x

x = 50 miles.

When miles x = 100, the number of hours y is given by:

y = kx

y = 1/50(100)

y = 2 gallons.

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

The average ordinate of y = sin x over the interval [0,π] is 2/π or approximately 0.6366.

Now, let's look at the function y = sin x over the interval [0,π]. The graph of this function is a wave that oscillates between 1 and -1 over the interval [0,π]. The average ordinate of this function over the interval [0,π] is the mean value of all the y-coordinates of the points on the curve over that interval.

To find the mean value, we need to calculate the total area under the curve between x = 0 and x = π, and then divide that by the length of the interval (which is π). The total area under the curve can be found by integrating the function y = sin x over the interval [0,π]:

∫sin x dx = [-cos x] from 0 to π = -cos(π) - (-cos(0)) = 2

So, the total area under the curve is 2. To find the average ordinate, we divide the total area by the length of the interval:

Average ordinate = (total area under curve) / (length of interval)

= 2 / π

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Complete Question:

The average ordinate of y = sin x over the interval [0,π] is -

We reject the null hypothesis and conclude that the data provide sufficient evidence to support the claim that the mean hours of TV watched per day is less than 3 hours.

What is mean?

In statistics, the mean is a measure of central tendency, also known as the average. It is calculated by adding up all the values in a dataset and dividing the sum by the number of values in the dataset.

To determine whether the data provide sufficient evidence to conclude that the mean hours of TV watched per day is less than the claim of 3 hours, we can conduct a one-sample t-test with the following hypotheses:

Null hypothesis: The mean hours of TV watched per day is greater than or equal to 3 hours (µ ≥ 3).

Alternative hypothesis: The mean hours of TV watched per day is less than 3 hours (µ < 3).

We will use a significance level (alpha) of 0.05.

First, we need to calculate the test statistic (t-value) using the formula:

t = ([tex]\bar{x}[/tex] - µ) / (s / sqrt(n))

Where:

[tex]\bar{x}[/tex] = sample mean (2.97)

µ = population mean claim (3)

s = sample standard deviation (2.61)

n = sample size (1312)

Plugging in the values, we get:

t = (2.97 - 3) / (2.61 / sqrt(1312)) = -2.64

Next, we need to determine the degrees of freedom (df), which is equal to n - 1 = 1311.

Using a t-distribution table with df = 1311 and a significance level of 0.05, we find the critical t-value to be -1.645.

Since our calculated t-value of -2.64 is less than the critical t-value of -1.645, we reject the null hypothesis and conclude that the data provide sufficient evidence to support the claim that the mean hours of TV watched per day is less than 3 hours.

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 [tex]\:y\:=\:\left(7/4\right)x^3\:+\:\left(C/e^{\left(4x\right)}\right)e^{\left(4x\right)}[/tex] is the solution of the differential equation x dy/dx + 4y =7x²

The given differential equation is a linear first-order differential equation. By using the integrating factor technique, we can solve this equation.

The integrating factor for this equation is [tex]e^{\left(4\int dx\right)}\:=\:e^{\left(4x\right)}.\:[/tex]

Multiplying both sides of the equation by the integrating factor, we get [tex]\left(xe^{\left(4x\right)}\right)dy\:+\:4e^{\left(4x\right)}y\:=\:7x^2e^{\left(4x\right)}.\:[/tex]

Integrating both sides of the equation

[tex]\left(1/4\right)e^{\left(4x\right)}y\:=\:\left(7/8\right)x^3e^{\left(4x\right)}\:+\:C,[/tex]

where C is the constant of integration.

we get [tex]\:y\:=\:\left(7/4\right)x^3\:+\:\left(C/e^{\left(4x\right)}\right)e^{\left(4x\right)}[/tex].

Now, we can use the initial condition to solve for the constant of integration.

When x = 4 and y = 22

substituting these values into the equation,

we get [tex]22\:=\:\left(7/4\right)\cdot 64\:+\:\left(C/e^{\left(16\right)}\right)e^{\left(16\right)}[/tex].

Solving for C, we get [tex]C\:=\:e^{\left(16\right)}\cdot \left(22\:-\:\left(7/4\right)\cdot 64\right)[/tex]

Hence,  [tex]\:y\:=\:\left(7/4\right)x^3\:+\:\left(C/e^{\left(4x\right)}\right)e^{\left(4x\right)}[/tex] is the solution of the differential equation x dy/dx + 4y =7x²

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The volume of the cube-shaped container with an edge length of 2/3 feet is 8/27 cubic feet.

Given the formula for the volume of a cube: V = s³

where V is the volume of the cube.

if we know the edge length of the cube, we can use this formula to calculate it's volume.

 In this case, the edge length of the cube is given as 2/3 feet.

V= s³= (2/3)³= 8/27 cubic feet

Therefore, the volume of the cube-shaped container with an edge length of 2/3 is 8/27 cubic feet.

Answer:

89

Step-by-step explanation:

First multiply 94*2 = 188

Subtract 99 from 188

188 - 99 = 89

Check:

89 + 99 = 188

188/2 = 94

Answer:

Step-by-step explanation:

To calculate a lower bound for the population standard deviation with a 95% confidence level, we can use the following formula:

lower bound = (n - 1) * s^2 / chi-squared(alpha/2, n-1)

where n is the sample size, s is the sample standard deviation, chi-squared(alpha/2, n-1) is the chi-squared value at the alpha/2 percentile with n-1 degrees of freedom.

In this case, n = 8 and s = 5.4. For a 95% confidence level, alpha/2 = 0.025, so we need to find the chi-squared(0.025, 7) value.

Using a chi-squared table or calculator, we find that chi-squared(0.025, 7) = 14.0671.

Plugging in the values, we get:

lower bound = (8 - 1) * 5.4^2 / 14.0671

= 19.4175

Taking the square root of this value gives us the lower bound for the population standard deviation:

sqrt(19.4175) = 4.4084

Therefore, the correct answer is E: o > 3.809, as the lower bound for the population standard deviation is greater than 3.809.

According to BankRate.com data that surveyed the largest banks and thrifts in July 2012, fees for overdrafts and insufficient funds averaged $31.26 in bank accounts.

An overdraft refers to a loan that a bank provides its customer by allowing him/her to pay for bills and other expenses when the account reaches zero or insufficient balance.

An overdraft shows that the account holder owes money to the bank.

Overdrafts can occur in different types of bank accounts like checking/current accounts, savings accounts, etc.

Like other types of loans, banks often charge fees for overdrafts, including the fact that the account holder may also be required to repay the overdraft amount with any applicable fees.

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Answer:

insufficient

Step-by-step explanation:

According to BankRate.com data that surveyed the largest banks and thrifts in July 2012, insufficient funds averaged $31.26 in bank fees.

Yes, the set D is a subset of set A that is D⊂A because all the elements of set D are present in set A.

Universal set is,

U={1,2,3,4,5,6,7,8,9,10,11,12}

Element present in different set are as follow,

Set A = {1,2,3,4,6,12}

Set B={2,4,6,8,10,12}

Set C={1,3,5,7,9,11}

Set D={2,4,6}

D is a subset of A.

If and only if all the elements of set D are also present in set A.

Element of set  D = {2, 4, 6}

Element of set A = {1, 2, 3, 4, 6, 12}

All the elements of D, namely 2, 4, and 6, are also present in set A.

This implies,

D is a subset of A.

It is denoted as D ⊂ A.

Therefore, yes D is subset of A ' D⊂A'  as all the element of set D are in set A.

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The possible outcomes of drawing a card from a standard deck of 52 playing cards are 52 individual cards, including Ace through 10 of hearts, diamonds, clubs, and spades, and the three face cards - Jack, Queen, and King - in each of the four suits. This can be answered by the concept of Probability.

Drawing a card from a standard deck of 52 playing cards is a random process with 52 possible outcomes. The deck consists of four suits - hearts, diamonds, clubs, and spades - each with 13 cards - Ace through 10, and three face cards - Jack, Queen, and King. Therefore, the possible outcomes of this random process are the 52 individual cards in the deck, including Ace through 10 of hearts, diamonds, clubs, and spades, and the three face cards - Jack, Queen, and King - in each of the four suits.

Therefore, the possible outcomes of drawing a card from a standard deck of 52 playing cards are 52 individual cards, including Ace through 10 of hearts, diamonds, clubs, and spades, and the three face cards - Jack, Queen, and King - in each of the four suits.

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The p-value for the hypotheses from the previous problem is 0.7935.

The power of your test to detect the investor's alternative of interest is  323.5624

To begin with, we need to calculate some summary statistics to describe the data. The sample size (n) is 15, the sample average (x) is 317.267, the sample standard deviation (s) is 6.0281, the median is 317.5, and the range is 23.5 (from 300.9 to 324.6).

Now, we can set up the hypothesis test to determine if the average maximum thrust produced by our jet packs is different from 317 lbs. Let µ represent the population mean of maximum thrust produced by the jet packs.

Our null hypothesis, H0, is that the population mean of maximum thrust is equal to 317 lbs (µ = 317). The alternative hypothesis, H1, is that the population mean of maximum thrust is different from 317 lbs (µ ≠ 317).

To control the Type 1 Error at 0.04, we set α (significance level) equal to 0.02 on each tail of the distribution.

The next step is to calculate the p-value for the hypotheses from the previous problem. The p-value is the probability of observing a sample mean as extreme or more extreme than the observed value, assuming the null hypothesis is true. We can use the t-distribution to calculate the p-value.

The t-value for our sample is (317.267 - 317) / (6.0281 / √(15)) = 0.7935. The degrees of freedom (df) for the t-distribution is n - 1 = 14.

Using a t-table or calculator, the two-tailed p-value is 0.4433. Since the p-value is greater than the significance level (0.02), we fail to reject the null hypothesis. We do not have sufficient evidence to conclude that the population mean of maximum thrust is different from 317 lbs.

To draw the rejection region under the t-distribution, we first need to calculate the critical t-value. With α = 0.02 and df = 14, the critical t-value is ±2.4469.

The rejection region consists of all t-values that are less than -2.4469 or greater than 2.4469. This area corresponds to 0.02 in each tail of the distribution.

To draw the rejection region in the context of the problem, we need to convert the t-values to the units of the problem, which is lbs. Using the formula for the t-value, we get:

t = (x - µ) / (s / √(n))

Substituting the values, we get:

t = (317.267 - 317) / (6.0281 / √(15)) = 0.7935

The rejection region is then:

x < 317 - 2.4469 * (6.0281 / √(15)) = 310.4376 or x > 317 + 2.4469 * (6.0281 / √(15)) = 323.5624

This means that if the sample mean falls outside the rejection region, we fail to reject the null hypothesis.

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We can say with 99% confidence that the population mean falls

between  5.09 and 100.25.

To construct a 99% confidence interval estimate of the population mean,

we need to use the following formula:

Confidence interval = sample mean ± (critical value) × (standard error)

where the critical value is obtained from the t-distribution table based

on the degrees of freedom (n-1) and the desired confidence level (99% in

this case), and the standard error is calculated as the sample standard

deviation divided by the square root of the sample size.

To find the sample mean, we need to add up the values of x, o, and n,

and divide by the total number of observations:

Sample mean = (x + o + n) / 3 = (74 + 14 + 70) / 3 = 52.67

To find the sample standard deviation, we need to calculate the sum of

the squared deviations from the sample mean, divided by the sample

size minus one, and then take the square root:

[tex]s = \sqrt{[((x - \bar x)^2 + (o - \bar x)^2 + (n - \bar x)^2) / (3 - 1)]}[/tex]

[tex]= \sqrt{ [((74 - 52.67)^2 + (14 - 52.67)^2 + (70 - 52.67)^2) / 2]}[/tex]

= 33.92

To find the critical value, we need to look up the t-distribution table with

degrees of freedom (n-1) = 2 and confidence level 99%, which gives us a

value of 4.604.

Finally, we can plug these values into the formula to get the confidence

interval:

Confidence interval = 52.67 ± (4.604) * (33.92 / sqrt(3))

= 52.67 ± 47.58

= (5.09, 100.25)

Therefore, we can say with 99% confidence that the population mean

falls between 5.09 and 100.25.

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The value of x in the triangle is 3

It is crucial that we note the different trigonometric identities in mathematics are;

Also, using the Pythagorean theorem stating that the square of the hypotenuse is equal to the sum of the squares of the other two sides

5² = x² + 4²

find the squares

25 = x² + 16

collect the like terms

x² = 9

Find the square root

x = 3

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The probability that a female college student from the group chose "housework" as their most likely activity on Saturday mornings cannot be determined without additional information.

The question states that the probability of a female college student choosing "housework" as their most likely activity on Saturday mornings needs to be determined. However, no information is given regarding the number of female college students in the group or the number of students who chose "housework" as their most likely activity.

Therefore, it is impossible to calculate the probability without any additional information. In order to calculate the probability, we would need to know the number of female college students in the group and the number of those students who chose "housework" as their most likely activity. Therefore, the probability cannot be determined without additional information.

Therefore, we can conclude that without additional information, the probability that a female college student from the group chose "housework" as their most likely activity on Saturday mornings cannot be calculated.

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Answer:

1: 57,310

2: 89,600

3: 37,000

Step-by-step explanation:

The value of the definite integral is (175/3) - (3730/3√5) - 600√5/3.

We can use the substitution [tex]u = x^2 + 25[/tex] to simplify the given integral.

Then du/dx = 2x, and solving for x we get [tex]x = (u - 25)^{(1/2)[/tex].

We also need to find the new limits of integration when x = 0 and x = 5.

When x = 0, [tex]u = 0^2 + 25 = 25[/tex], and when x = 5, [tex]u = 5^2 + 25 = 50[/tex].

Using the substitution, the integral becomes:

∫[[tex]x^2 + 25 - x^3[/tex]] dx from 0 to 5

= ∫([tex]u - x^3[/tex]) × (1/2x) dx from 25 to 50 (substituting for x and solving for dx)

=[tex](1/2) \times \int(u^{(1/2)} - u^{(3/2)} + 25u^{(-1/2)} - 25u^{(1/2)}) du[/tex] from 25 to 50

(substituting for x and simplifying)

= [tex](1/2) \times [(2/3)u^{(3/2)} - (2/5)u^{(5/2)} + 50u^{(1/2)} - 50u^{(3/2)}][/tex] from 25 to 50

(integrating and simplifying)

=[tex][(2/3)(50^{(3/2)} - 25^{(3/2)}) - (2/5)(50^{(5/2)} - 25^{(5/2)}) + 50(50^{(1/2)} - 25^{(1/2)}) - 50(50^{(3/2)} - 25^{(3/2)})] / 2[/tex]

= [(2/3)(1250 - 625) - (2/5)(125000 - 15625) + 50(5 - 5√5) - 50(125√5 -

25√5)] / 2

= (175/3) - (3730/3√5) - 600√5/3

Therefore, the value of the definite integral is (175/3) - (3730/3√5) -

600√5/3.

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The length of the curve y=x^4 from x=1 to x=5 is approximately 130.789 units.

To find the length of the curve y=x^4 from x=1 to x=5, we need to use the arc length formula, which is given by:

L = ∫[a,b] √(1 + (dy/dx)^2) dx

In this case, we have:

dy/dx = 4x^3

So, the arc length formula becomes:

L = ∫[1,5] √(1 + (4x^3)^2) dx

L = ∫[1,5] √(1 + 16x^6) dx

This integral is quite difficult to solve analytically, so we need to use numerical methods to approximate the value of L. One such method is the trapezoidal rule, which involves approximating the area under the curve using trapezoids. The formula for the trapezoidal rule is:

L ≈ ∑[i=1,n] (h/2) [f(x_i) + f(x_{i-1})]

where h is the step size (which is equal to (b-a)/n in this case), f(x_i) is the value of the integrand at the ith point, and n is the number of intervals.

Using the trapezoidal rule with n=1000 intervals, we get:

L ≈ 130.789

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The trigonometry numerical value of each expression,

(a) tanh(0) = 0

(b) tanh(1) = 0.76159

The hyperbolic tangent function is defined as the ratio of the hyperbolic sine to the hyperbolic cosine. Using this definition and the properties of hyperbolic functions, we were able to evaluate the given expressions and find their numerical values.

(a) tanh(0) = sinh(0)/cosh(0) = 0/1 = 0

(b) tanh(1) = sinh(1)/cosh(1) ≈ 0.76159

To find the value of tanh(1), we use the formula for hyperbolic sine and cosine:

sinh(x) = ([tex]e^x[/tex] - [tex]e^{(-x)[/tex])/2

cosh(x) = ([tex]e^x[/tex] + [tex]e^{(-x)}[/tex])/2

Substituting x = 1, we get:

sinh(1) = (e - [tex]e^{(-1)}[/tex])/2 ≈ 1.1752

cosh(1) = (e + [tex]e^{(-1)}[/tex])/2 ≈ 1.5431

Thus, tanh(1) = sinh(1)/cosh(1) ≈ 0.76159, rounded to five decimal places.

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Using Poisson distribution, the probability of having less than 4 accidents in a month is 43.3%

To solve this problem, we can use Poisson distribution;

Let's assume λ stands for the average number of accidents per month, which in the question is 4. The probability we will have x accidents in a given month will be

P(x, λ) = (e^(- λ) *  λ^x)/x!

Since we expect at most 4 accidents in a month

P(X<4) = P(X=0) + p(x = 1) + p(X =2) + P(X =3)

p(X= x) = (e^(- λ)* λ^x)/x!

We can substitute the value of  λ into the equation and solve for x = 0, 1, 2 and 3

P(X = 0) = (e^(-4) * 4^0)/0! = 0.018

P(X = 1) = e^(-4) * 4^1)/1! = 0.073

P(X = 2) = e^(-4)* 4^2)2! = 0.147

P(X =3) = e^(-4) * 4^3)3! = 0.195

We can sum this up to give the total probability

P(X<4)= 0.018 + 0.073 + 0.147 + 0.195 =0.433

The probability of having less than 4 accidents in a month is 43.3%

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The percentage rate of change equation is  -1.274%

What is percentage?

Percentage is a way of expressing a fraction or proportion out of 100. It is commonly used in many different areas such as finance, math, science, and everyday life.

(a) To numerically estimate p'(6), we need to take the derivative of p(t) with respect to t and evaluate it at t=6.

p(t) = -0.102t + 1.3912t - 3.295 + 79.25

p'(t) = -0.102

p'(6) ≈ -0.102 ≈ -0.102 million passengers per year ≈ -102,000 passengers per year

(b) To calculate the percentage rate of change of p at t=6, we need to calculate the relative change in p over a small interval of time. We can use the formula:

percentage rate of change = [p(t+Δt) - p(t)] / [p(t)] × 100%

where Δt is a small change in time. Let's use Δt = 0.01 years.

percentage rate of change = [p(6+0.01) - p(6)] / [p(6)] × 100%

= [-0.102(0.01)] / [p(6)] × 100%

= -1.02 / [p(6)] × 100%

We can use the given equation to find p(6):

p(6) = -0.102(6) + 1.3912(6) - 3.295 + 79.25

≈ 80.135 million passengers

Substituting this value into the percentage rate of change equation:

percentage rate of change ≈ -1.02 / 80.135 × 100%

≈ -1.274%

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To evaluate u · (v + w), we first need to calculate the vector v + w by adding the corresponding components of vectors v and w:So, the answer is 106.

v + w = (1, 6) + (-11, 2) = (-10, 8)

Then, we use the dot product formula to calculate u · (v + w):

u · (v + w) = (-5, 7) · (-10, 8) = (-5)(-10) + (7)(8) = 50 + 56 = 106

Therefore, the answer is 106.
Hi! To solve this problem, you first need to find the sum of vectors v and w, and then take the dot product of u and the sum of v and w.

1. Find the sum of vectors v and w:
v + w = (1, 6) + (-11, 2) = (1 - 11, 6 + 2) = (-10, 8)

2. Calculate the dot product of u and (v + w):
u · (v + w) = (-5, 7) · (-10, 8) = (-5 * -10) + (7 * 8) = 50 + 56 = 106

So, the answer is 106.

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The answer of the given question based on the sequence is , the sum of the first 50 terms in the sequence is approximately 4.5036 × 10¹⁵.

In mathematics, an explicit formula is a formula that defines a specific term or element of a sequence or function, in terms of the preceding terms or elements or some other input. Explicit formulas are also sometimes called closed-form formulas.

To find the sum of the first 50 terms in the sequence, we need to use the explicit formula:

aᵢ = aᵢ₋₁ × 2

where a₁ = -4.

Using the formula repeatedly, we can find the values of the first few terms:

a₂ = a₁ × 2 = -4 × 2 = -8

a₃ = a₂ × 2 = -8 × 2 = -16

a₄ = a₃ × 2 = -16 × 2 = -32

and so on.

We can see that the sequence is a geometric sequence with a common ratio of 2 and a first term of -4. So we  use  formula for sum of geometric sequence:

S₅₀ = a₁(1 - rⁿ) / (1 - r)

where a₁ = -4, r = 2, and n = 50.

Plugging in these values, we get:

S₅₀ = (-4)(1 - 2⁵⁰) / (1 - 2)

= (-4)(1 - 1,125,899,906,842,624) / (-1)

= (4)(1,125,899,906,842,623)

= 4.503599627370494e+15

Therefore, the sum of the first 50 terms in the sequence is approximately 4.5036 × 10¹⁵.

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Using the triangle theorem of  45, 45, 90 of trigonometry, the value of the hypothenuse is b = 1.5√2 in

Special Angles of trigonometry can be used to find exact values of expressions involving sine, cosine and tangent values of 0, 30, 45, 60 and 90 degrees

The given parameters are

a = 1.5 in  

h= ?

Using SinA = Oppo/Hypo

Sin = 1/√2

= Sin45 = 1.5/b

1/√2 = 1.5/b

Cross and multiply we have

b = 1.5√2 in

Therefore the value of the hypothenuse side is b = 1.5√2 in

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The 99% lower confidence bound for the true average ultimate tensile strength is 134.09.

To calculate the 99% lower confidence bound for the true average ultimate tensile strength, we need to use the formula:

Lower confidence bound = sample mean - (critical value * (sample standard deviation / √(sample size)))

First, we need to determine the critical value for a 99% confidence level. Using a t-distribution table with 152 degrees of freedom (sample size - 1), we find a critical value of -2.602.

Plugging in the values, we get:

Lower confidence bound = 135.39 - (-2.602 * (4.59 / √(153)))

Lower confidence bound = 134.09

In simpler terms, we can say that we are 99% confident that the true average ultimate tensile strength is at least 134.09 or higher based on our sample data.

This means that if we were to take many different samples of the same size and calculate the lower confidence bound for each sample, we would expect 99% of them to contain the true average ultimate tensile strength value.

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Answer: 5.80?

Step-by-step explanation:

Just divide by 2, like

11.60 divided by 2

The mean life of a 14C atom is approximately 8,267 years.

For a radioactive substance, the mean life M is defined as the average amount of time it takes for half of the atoms in a sample to decay.

In this case, we have the equation for the mass of a radioactive substance

m(t) = m(0) [tex]e^{kt}[/tex]

where m(0) is the initial mass, k is a negative constant, and t is time.

To find the mean life of a 14C atom, we need to find the value of M when k = -0.000121.

First, we need to solve for t when the mass of a sample of 14C is half of its initial mass:

0.5m(0) = m(0) [tex]e^{-0.000121t}[/tex]

Dividing both sides by m(0), we get

0.5 =  [tex]e^{-0.000121t}[/tex]

Taking the natural logarithm of both sides:

ln(0.5) = -0.000121t

Solving for t

t = ln(0.5) / (-0.000121)

t ≈ 5,732 years

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