find the integral10. Determine w converges, find its dx S x Inx 11 ch

Answers

Answer 1

The limit is greater than zero, we can conclude that our function also diverges as x approaches infinity. Therefore, the integral does not converge.

To find the integral, we need to integrate the function S(x)ln(x)+11ch(x) with respect to x. However, before we do that, we need to determine if the integral converges or not.

One way to do this is to use the limit comparison test. We can compare our function to a known function that we know either converges or diverges. Let's choose the function ln(x), which we know diverges as x approaches infinity.

Taking the limit as x approaches infinity of the ratio of our function to ln(x), we get:

lim x->∞ [(S(x)ln(x)+11ch(x))/ln(x)]
= lim x->∞ [S(x)+11ch(x)/ln(x)]

Using L'Hopital's rule, we can evaluate this limit by taking the derivative of the numerator and denominator with respect to x:

= lim x->∞ [(S'(x)+11sh(x))/1/x]
= lim x->∞ [x(S'(x)+11sh(x))]
= ∞

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Related Questions

please solve allif f(x) = x*sinx - 5tanx find f'(x) If y = (3x - 2)(5x2 + 1), find y' d (Vx) dx L'(x) if f(x) = 4x2 S X+5 =

Answers

The value of function are,

⇒ f' (x) = ( sin x - x cos x) - 5 sec² x

And, ⇒ y' = 45x² - 20x + 3

Given that;

Function is,

⇒ f(x) = x sin x - 5 tan x

And, y = (3x - 2) (5x² + 1)

Now, We can simplify as;

⇒ f(x) = x sin x - 5 tan x

Differentiate as;

⇒ f' (x) = ( sin x - x cos x) - 5 sec² x

And, For y = (3x - 2) (5x² + 1)

Differentiate as;

⇒ y' = (3x - 2) (10x) + (5x² + 1) (3)

⇒ y' = 30x² - 20x + 15x² + 3

⇒ y' = 45x² - 20x + 3

Thus, The value of function are,

⇒ f' (x) = ( sin x - x cos x) - 5 sec² x

And, ⇒ y' = 45x² - 20x + 3

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Assume the random variable x is normally distributed with mean I = 83 and standard deviation a = 4. Find the indicated probability. P(70

Answers

The probability of X being less than 70 is approximately 0.0006.

The standard normal distribution.

Transform X into a standard normal variable Z:

[tex]Z = (X - \mu) / \sigma[/tex]

Substituting the given values, we have:

[tex]Z = (70 - 83) / 4 = -3.25[/tex]

Using a standard normal table or calculator, we can find

The probability:

[tex]P(X < 70) = P(Z < -3.25) = 0.0006[/tex]

The probability of X being less than 70 is approximately 0.0006.

the usual distribution of normals.

Change X into the typical normal variable Z:

Z = (X - \mu) / \sigma

If we substitute the values provided, we get:

Z = (70 - 83) / 4 = -3.25

We may determine the probability using a calculator or a normal table to find:

Z = (70 - 83) / 4 = -3.25

X has a about 0.0006 likelihood of being less than 70.

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QUESTION 13 1 POINT
A triangle with area 264 square inches has a height that is four less than four times the width. Find the width and height of
the triangle.

Answers

246 divided by 4 I guess ‍♀️

The width of the triangle is 12 inches, and the height of the triangle is 44 inches.

What is the Area of a Triangle?

Let w = the width of the triangle and h = the height.

The area of the triangle = 264 in²

Area of a triangle is given as A = (1/2) * base * height

Since the base of the triangle is the width "w," we can write the equation as:

264 = (1/2) * w * h

Therefore:

h = 4w - 4

Substitute the value of "h" in terms of "w" into the area equation:

264 = (1/2) * w * (4w - 4)

Now, we can solve for "w":

264 = 2w² - 2w

2w² - 2w - 264 = 0

Divide the entire equation by 2 to simplify:

w² - w - 132 = 0

factorize:

(w - 12)(w + 11) = 0

w = 12 or w = - 11

The width of the triangle cannot be negative, therefore:

Width "w" of the triangle = 12 inches.

Now, we can find the height "h" using the equation we derived earlier:

h = 4w - 4

h = 4(12) - 4

h = 44 in.

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Write an equation for the line that passes through (3,14) and is parallel to the line that passes through (10,2) and (25,15)

Answers

Answer:

the equation of the line that passes through (3, 14) and is parallel to the line that passes through (10, 2) and (25, 15) is y = (13/15)x + 10.

Step-by-step explanation:

Parallel line equation.

Piyush Soni

Write an equation for the line that passes through (3,14) and is parallel to the line that passes through (10,2) and (25,15)

To find the equation of the line that passes through (3, 14) and is parallel to the line that passes through (10, 2) and (25, 15), we first need to find the slope of the line passing through (10, 2) and (25, 15), which we will call m1.

The slope of the line passing through two points (x1, y1) and (x2, y2) can be calculated using the formula:

m = (y2 - y1) / (x2 - x1)

So, for the line passing through (10, 2) and (25, 15), we have:

m1 = (15 - 2) / (25 - 10) = 13/15

Since we want a line parallel to this one, the slope of our new line will be the same. Let's call this slope m2.

m2 = 13/15

Now, we can use the point-slope form of the equation of a line to find the equation of the line passing through (3, 14) with slope m2:

y - y1 = m2(x - x1)

where x1 = 3 and y1 = 14

Plugging in the values, we get:

y - 14 = (13/15)(x - 3)

Simplifying, we get:

y = (13/15)x + 50/5

or

y = (13/15)x + 10

Therefore, the equation of the line that passes through (3, 14) and is parallel to the line that passes through (10, 2) and (25, 15) is y = (13/15)x + 10.

The equation of the line that passes through (3,14) and is parallel to the line that passes through (10,2) and (25,15) is y = (13/15)x  171/15.

What is an equation of a line?

The equation of a line is given by:

y = mx + c

where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

The slope of a line passing through two points (x1, y1) and (x2, y2) is given by:

slope = (y2 - y1) / (x2 - x1)

Using the points (10,2) and (25,15), we have:

slope = (15 - 2) / (25 - 10) = 13 / 15

Since the line we want is parallel to this line, it will have the same slope. So, we can use the point-slope form of the equation of a line:

y - y1 = m(x - x1)

where m is the slope, and (x1, y1) is the given point (3,14).

Substituting m = 13/15 and (x1,y1) = (3,14).

y - 14 = (13/15)(x - 3)

Expanding and rearranging.

15y - 210 = 13x - 39

15y = 13x - 39 + 210

15y = 13x + 171

y = (13/15)x  171/15

Thus,

The equation of the line that passes through (3,14) and is parallel to the line that passes through (10,2) and (25,15) is y = (13/15)x  171/15.

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Find the minimum value of f(x,y)=43x2 +11y2 subject to the constraint x2 + y2 = 324

Answers

The minimum value of f(x, y) = 43x² + 11y² subject to the constraint x² + y² = 324 is 3564.

To find the minimum value, we use the method of Lagrange multipliers. Define a function L(x, y, λ) = 43x² + 11y² - λ(x² + y² - 324). Take partial derivatives with respect to x, y, and λ and set them to zero:

1. ∂L/∂x = 86x - 2λx = 0
2. ∂L/∂y = 22y - 2λy = 0
3. ∂L/∂λ = x² + y² - 324 = 0

From equations (1) and (2), we get x = y = 0 or λ = 43 for x and λ = 11 for y. Substituting λ = 43 into equation (3) gives x² + y² = 324. Solving for x and y, we get x = 18 and y = 6. Substituting these values into f(x, y), we obtain f(18, 6) = 3564, which is the minimum value.

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If FDATA= 0.9, the result is statistically significant a. Alwaysb. Sometimes c. Never

Answers

The result is sometimes statistically significant. The correct option is b. sometimes.

Statistical significance is determined by comparing the observed value (in this case, FDATA) to a predetermined threshold, typically referred to as the alpha level or significance level. If the observed value exceeds the alpha level, then the result is considered statistically significant, meaning that the observed value is unlikely to have occurred by chance alone.

In this case, the given value of FDATA is 0.9. However, without knowing the context of the statistical analysis being conducted, it is not possible to determine whether this value is statistically significant or not. The determination of statistical significance depends on various factors, such as the sample size, the research question, the type of statistical test being used, and the desired level of confidence.

Therefore, without additional information about the specific context and analysis being performed, it is not possible to definitively state whether a value of FDATA = 0.9 is statistically significant or not. The result could be statistically significant in some situations (when compared to an appropriate alpha level), and not statistically significant in other situations.

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The demand for a certain product is represented by the equation p=500+25x− 3x 2 ​ in rupees where x is the number of units and p is the price 3 per unit. Find:(i) Marginal revenue function.(ii) The marginal revenue when 10 units are sold.

Answers

When the weekly sales are x = 54 units, we must get the derivative of the profit function with respect to time in order to determine the rate of change in sales with respect to time. Pwhere C is the

The term "rate of change" describes how quickly a variable changes over time. It gauges how much a variable alters over the course of a certain length of time. The derivative of a function in mathematics serves as a symbol for pace of change. A function's derivative shows how quickly a function changes at any given point on its graph. Numerous real-world events, such as changes in temperature, velocity, and stock prices, may be studied using the rate of change. A moving object's acceleration is calculated in physics, while the rate of return on an investment is calculated in finance. A helpful tool for studying change is the rate of change

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complete question:

The profit for a product is increasing at a rate of $5800 per week. The demand and cost functions for the product are given by p = 8000 − 25x and C = 2400x + 54, where x is the number of units produced per week. Find the rate of change of sales with respect to time when the weekly sales are x = 54 units.

_____?_____ units per week

Given the confidence interval (0.51, 0.68), determine the value of E. a. 1.190 O b. 0.085 O c. 0.170 O d. 0.595

Answers

The confidence interval (0.51, 0.68), determine, the value of E is 0.085, which is option (b).

The value of E, also known as the margin of error, can be determined using the formula:

E = (upper bound of CI - lower bound of CI) / 2

In this case, the upper bound of the confidence interval is 0.68 and the lower bound is 0.51, so:

E = (0.68 - 0.51) / 2 = 0.085

The margin of error is a measure of the precision of an estimate, and it indicates the amount by which the estimate may differ from the true population value. The smaller the margin of error, the more precise the estimate. The margin of error is affected by the sample size and the level of confidence. A larger sample size and a higher level of confidence will result in a smaller margin of error.

It's important to note that the margin of error only provides a range of plausible values for the true population parameter, and it doesn't guarantee that the true value falls within that range. Therefore, it's always important to interpret the results of a study or survey with caution and consider other factors that may impact the accuracy of the estimate.

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Find the nth term of this quadratic sequence
2, 8, 18, 32, 50,​

Answers

Check the picture below.

414 Elephants are classified into 3 groups, alpha (m), gamma (y) betale) a) Assuming they intend to keep 414 Elephants. 2 equations in the 3 unknowns x, y, z. x+y+2=414 neree x = 1/5(y+2) b)Solve the system in terms of a parameter t. (use catrices) c) Explain why group of 414 Elephants must have 69 alpha regardles of the distribution of the other two types d) Suppose now there is only 101 Beta available. Determine and fill the required number of the other two types.

Answers

The problem involves classifying 414 elephants into three groups: alpha, beta, and gamma. The equations and solutions for the three unknowns are x + y + 2 = 414 and x = 1/5(y + 2). The system is solved using matrices. It is explained why the group of 414 elephants must have 63 alpha, regardless of the distribution of the other two types.  the required number of the other two types is 250 gamma and 101 beta.

From the given information, we can set up two equations as follows

x + y + z = 414 (where x, y, and z represent the number of elephants in the alpha, gamma, and beta groups, respectively)

And, x = 1/5(y + 2)

To solve the system in terms of a parameter t, we can represent it in matrix form as follows

[tex]\left[\begin{array}{ccc}1&1&1\\1/5&-1&0\\\end{array}\right][/tex] [tex]\left[\begin{array}{cc}x\\y\end{array}\right][/tex] = [tex]\left[\begin{array}{cc}414\\0\\\end{array}\right][/tex]

Using matrix operations, we can solve for x and y in terms of z, which gives us

x = 83 - z/5

y = 331/5 + z/5

The total number of elephants in the alpha group is 69, regardless of the distribution of the other two types because we know that x + y + z = 414 and x = 1/5(y + 2). Substituting the second equation into the first, we get

(1/5)y + (1/5)2 + y + z = 414

Simplifying the equation, we get

6y + 5z = 2060

Since the total number of elephants is 414, we know that z = 414 - x - y. Substituting this into the equation above, we get

6y + 5(414 - x - y) = 2060

Simplifying this equation, we get

x + y = 69

Therefore, the number of alpha elephants is always 69, regardless of the distribution of the other two types.

If there are only 101 beta elephants available, we can set up a new equation as follows

x + y + z = 414

z = 101

Substituting z = 101 into the first equation, we get

x + y = 313

Using the equation x = 1/5(y + 2) from part a, we can solve for x and y, which gives us

x = 63

y = 250

Therefore, there are 63 alpha, 250 gamma, and 101 beta elephants.

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The heights (in inches) of 7 randomly selected NBA player are 68, 69, 78, 82,75, 73, 80. (a) Construct a normal quantile plot using the method suggested by the textbook of this course. (b) What do you observe after the plotting?

Answers

(a) A normal quantile plot of the data is illustrated below.

(b) There are some slight deviations from the line, particularly for the data points at the extremes of the distribution (68 and 82 inches).

In this case, we have the heights of 7 NBA players: 68, 69, 78, 82, 75, 73, and 80 inches. To construct the normal quantile plot, we first calculate the mean and standard deviation of the data:

Mean = (68 + 69 + 78 + 82 + 75 + 73 + 80) / 7 = 75.43

Standard deviation = 5.98

Next, we calculate the z-scores for each data point:

z1 = (68 - 75.43) / 5.98 = -1.24

z2 = (69 - 75.43) / 5.98 = -1.07

z3 = (78 - 75.43) / 5.98 = 0.43

z4 = (82 - 75.43) / 5.98 = 1.09

z5 = (75 - 75.43) / 5.98 = -0.07

z6 = (73 - 75.43) / 5.98 = -0.41

z7 = (80 - 75.43) / 5.98 = 0.75

We can then plot the z-scores against the corresponding quantiles of a standard normal distribution. The z-score of -1.24 corresponds to the 10th percentile of the standard normal distribution, while the z-score of 1.09 corresponds to the 86th percentile.

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An explorer wants to find a way through the shown maze from the point marked “Start” to the point marked “End”. It can only move horizontally or vertically and can only go through the white circles. Also, it has to go through all the white circles exactly once. When you reach the circle marked with an X, your next move will be:

Answers

Answer:

A, up I think

Step-by-step explanation:

The explorer is currently on a white circle with an X inside, and they must go through all the white circles exactly once. This means that their next move must be to either the white circle to the left or to the right of the X. However, the white circle to the right of the X is already connected to the black circle, which means that the explorer cannot use that path. Therefore, their next move must be to the white circle to the left of the X.Looking at the maze, the only way to get to the white circle to the left of the X is by going up. Therefore, the correct answer is (A) arrow pointing up.

Mr. Robbin earns a commission on each airfare he books. At the end of the day, he had booked $208. 60 worth of airfare and earned $31. 29. What is Mr. Robins commission rate?

Answers

Mr. Robbin's commission rate is 15%.

A commission is a service charge assessed by a broker or investment advisor for providing investment advice or handling purchases and sales of securities for a client.

We know that:

commission = rate * sales

where "commission" is the amount earned in commission, "rate" is the commission rate, and "sales" is the total amount of sales.

In this case, we have:

commission = $31.29

sales = $208.60

Substituting these values into the formula, we get:

$31.29 = rate * $208.60

Solving for the rate, we get:

rate = $31.29 / $208.60

= 0.15 or 15%

Therefore, Mr. Robbin's commission rate is 15%.

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Suppose the average weight of a box of cereal is 28 ounces with a standard deviation of 2 ounces. Assume the weights have a normal distribution. Which is smaller? The chance that one box has a weight less than 27.5 ounces, or the chance that 49 boxes have an average weight less than 27.5 ounces?A. The chance that the average of 49 boxes weighs less than 27.5 ounces is smaller.B. The chance that one box weighs less than 27.5 ounces is smallerC. Both would give the same chance.

Answers

The chance that the average of 49 boxes weighs less than 27.5 ounces is smaller.

We can solve this problem using the central limit theorem. Since the weights of individual boxes have a normal distribution with mean 28 ounces and standard deviation 2 ounces, the distribution of sample means of 49 boxes will also be normal with mean 28 ounces and standard deviation (2/√49) ounces, which simplifies to 0.2857 ounces.

(a) To find the chance that one box has a weight less than 27.5 ounces, we can standardize the weight using the formula z = (x - μ) / σ, where x is the weight we are interested in, μ is the mean weight (28 ounces), and σ is the standard deviation (2 ounces).

So,

z = (27.5 - 28) / 2 = -0.25

Using a standard normal distribution table or calculator, we find that the probability of a z-score less than -0.25 is approximately 0.4013.

(b) To find the chance that 49 boxes have an average weight less than 27.5 ounces, we can standardize the sample mean using the formula z = (x - μ) / (σ / √n), where x is the sample mean weight (27.5 ounces), μ is the mean weight (28 ounces), σ is the standard deviation (2 ounces), and n is the sample size (49 boxes).

So,

z = (27.5 - 28) / (2 / √49) = -1.75

Using a standard normal distribution table or calculator, we find that the probability of a z-score less than -1.75 is approximately 0.0401.

Comparing the two probabilities, we can see that the chance that 49 boxes have an average weight less than 27.5 ounces (0.0401) is smaller than the chance that one box has a weight less than 27.5 ounces (0.4013).

Therefore, the answer is (a) The chance that the average of 49 boxes weighs less than 27.5 ounces is smaller.

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Select one:
¹)
O
O
The data on the depth and speed
of the Columbia River at various
locations in Washington state
represented in the scatter plot
below. Based on the trend line, if
the river is two feet deep at a
certain spot, how fast do you
think the current would be?
O
O
1.5 ft/sec
1.7 ft/sec
1.3 ft/sec
1.0 ft/sec
Velocity (fort/secard)

Answers

The current would be 1.5 feet per second fast at a depth of two feet

How fast do you think the current would be?

Drawing the line of best fit, we have the following points

(0, 1.8) and (10, 0.5)

The equation is represented as

y = mx + c

Where

c = y when x = 0

So, we have

y = mx + 1.8

Using the points, we have

10m + 1.8 = 0.5

So, we have

m = -0.13

So, the equation is

y = -0.13x + 1.8

At two feet deep, we have

y = -0.13 * 2 + 1.8

Evaluate

y = 1.54

Approximate

y = 1.5

Hence, the velocity is 1.5 feet per second

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What value of x is the solution of the equation 3x-7/5=x+1

Answers

Answer: 1 2/10

Step-by-step explanation:

The quotient Larissa has 4 1/2 cups of flour. She is making cookies using a recipe that calls for 2 3/4 cups of flour. After baking the cookies how much flour will be left?

Answers

After baking the cookies there will be fractional number 1 3/4 cups of flour will be left.

What is fraction?

Fraction is a part of any whole number. If an object or any thing will be divided into some parts then the parts will be the fraction of the whole thing. There are two parts in a fraction one is numerator another is denominator. Some examples of fractions are 5/2, 7/9 etc.

The quotient Larissa has 4 1/2 cups of flour. She is making cookies using a recipe that calls for 2 3/4 cups of flour.

So the total amount of flour is 4 1/2 cups = 9/2 cups which is a fraction.

The recipe calls for 2 3/4 cups of flour= 11/4 cups which is also a fraction.

Subtracting two fractional terms we will get the result.

            9/2- 11/4

The least common multiple between 9/2 and 11/4 is 4

So using the subtraction property of  fraction  we get   [tex]\frac{18-11}{4}[/tex]  = 7/4

The fraction 7/4 is equivalent to 1 3/4.

Hence , after baking the cookies 1 3/4 cups of flour will be left.

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Who called King George III "the Royal Brute of Great Britain."?

Answers

The American founding father and litterateur Thomas Paine referred to as King George III" the Royal Brute of high-quality Britain."

Paine was a main figure within the American Revolution and was a fierce advocate of american independence from British rule. He wrote a series of influential pamphlets, which includes" Common feel" and" The Rights of man," which helped to excite assist for the progressive reason.

In his thoughts, Paine often blamed the British monarchy and its leaders, including King George III, whom he saw as a dictator and an oppressor. His slicing phrases helped to rally reinforcement for the purpose of America self-reliance and performed a significant element in shaping the path of history.

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Suppose X is a uniform random variable over the interval [20, 90]. Find the probability that a randomly selected observation is between 23 and 85.

Answers

The probability that a randomly selected observation is between 23 and 85 is 31/35 or approximately 0.886.

To find the probability that a randomly selected observation is between 23 and 85, we need to calculate the area under the probability density function (PDF) between 23 and 85.

Since X is a uniform random variable, the PDF is a horizontal line with height 1/(90-20) = 1/70 over the interval [20, 90].

The area under the PDF between 23 and 85 is the area of a rectangle with width 85-23 = 62 and height 1/70, which is (62)(1/70) = 31/35.

Therefore, the probability that a randomly selected observation is between 23 and 85 is 31/35 or approximately 0.886.

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at a certain pizzeria, 1/6 of the pizzas sold in a week were cheese, and 1/5 of the other pizzas sold were pepperoni. if brandon bought a randomly chosen pizza from the pizzeria that week, what is the probability that he ordered a pepperoni?

Answers

The probability that Brandon ordered a pepperoni pizza is 1/6.

To find the probability that Brandon ordered a pepperoni pizza, we need to first determine the fraction of pizzas sold that were pepperoni.

We know that 1/6 of the pizzas sold were cheese, which means that 5/6 of the pizzas sold were not cheese. So, if we let x be the total number of pizzas sold in the week, then (5/6)x is the number of pizzas sold that were not cheese.

Of those non-cheese pizzas, 1/5 were pepperoni. So the total number of pepperoni pizzas sold would be (1/5)(5/6)x = (1/6)x.

Therefore, the probability that Brandon ordered a pepperoni pizza is (1/6)x / x = 1/6.

So the answer is: The probability that Brandon ordered a pepperoni pizza is 1/6.

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pooled variance =a. SS1 + SS2 / df1 + df2b. SS1 + SS2 / n1 + n2

Answers

The formula you have given (SS₁ + SS₂) / (n₁+ n₂) is actually the formula for the unweighted average of the variances, which is not appropriate when the sample sizes and variances are different between the two samples.

The formula for pooled variance is:

pooled variance = (SS₁+ SS₂) / (df₁ + df₂)

where SS₁ and SS₂ are the sum of squares for the two samples, df₁ and df₂ are the corresponding degrees of freedom, and the pooled variance is the weighted average of the variances of the two samples, where the weights are proportional to their degrees of freedom.

Note that the denominator is df₁ + df₂ not n₁+ n₂. The degrees of freedom take into account the sample sizes as well as the number of parameters estimated in

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Drag the tiles to the boxes to form correct pairs. Not all tiles will be used.
With reference to the figure, match the angles and arcs to their measures.
10 pts!

Answers

In light of the geometry puzzle, the tiles that correspond to the right boxes are mentioned below:

m∠COB = 114°

The measure of arc CE = 124°

m∠EOB = 122°

m∠DFA = 58°

What is geometry?

A branch of mathematics known as geometry is concerned with the study of objects' forms, angles, dimensions, and sizes. A very significant area of mathematics that is covered in many levels of instruction is geometry. It enables us to relate to things and forms more efficiently, as well as their angles and measurements.

The calculation is attached in the file.

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How many grams of Oats are
required to make 150 cookies?
A. 27.2 g
B. 28.1 g
C. 800 g
D. 400 g

Answers

The number of oats that can be used to make 150 cookies is 800 g of oats.

What is the number?

A proportion in mathematics is a claim that two ratios are equal. The relationship between two quantities is called a ratio, and it is typically stated as a fraction.

Geometry, physics, and finance are just a few of the mathematical and science fields where proportions are applied. They are particularly helpful for forming predictions based on patterns or relationships seen, and for comparing two quantities that are in different units or scales.

We can see that;

80 g of oats can be used to produce 15 cookies

x g of oats can produce 150 cookies

x = 80 * 150/15

= 800g

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A student takes out a college loan of $8000 at an annual percentage rate of 3%, compounded monthly. a. If the student makes payments of $1000 per month, how much, to the nearest dollar, does the student owe after 6 months? Don't round until the end. b. After how many months will the loan be paid off?

Answers

It will take approximately 8 months to pay off the loan (rounded up to the nearest month).

a. After 6 months, the student will owe $5,383.38 (to the nearest cent).

To calculate this, we can use the formula:

A = P(1 + r/n)^(nt) - PMT[((1 + r/n)^(nt) - 1) / (r/n)]

where:
A = the remaining balance after 6 months
P = the initial loan amount ($8,000)
r = annual percentage rate (3% or 0.03)
n = number of times compounded in a year (12 since it is compounded monthly)
t = time in years (6 months is 0.5 years)
PMT = the monthly payment ($1,000)

Plugging in these values, we get:

A = 8,000(1 + 0.03/12)^(12*0.5) - 1,000[((1 + 0.03/12)^(12*0.5) - 1) / (0.03/12)]

A = $5,383.38 (rounded to the nearest cent)

b. To find out how many months it will take to pay off the loan, we need to keep making the monthly payments until the remaining balance is $0.

Using the same formula as above, we can solve for t:

8,000(1 + 0.03/12)^(12t) - 1,000[((1 + 0.03/12)^(12t) - 1) / (0.03/12)] = 0

Simplifying this equation, we get:

t = log(1 + (1,000/8,000)(0.03/12)) / (12 log(1 + 0.03/12))

t = 7.46 months

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Need help Algebra 2!

Answers

Answer:

-x³ + 2x + 7

2x^5+x^4-x³+6x²+3x-3

Step-by-step explanation:

For #10:

(f-g)(x) = f(x) - g(x)

x³-2x+3 - (2x³ + 4x - 4)

-x³ + 2x + 7

For #11:

(f·g)(x) = f(x) * g(x)

(x³+3)(2x²+x-1) = 2x^5+x^4-x³+6x²+3x-3

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Answers

Answer:

a. 61%

b. $1315.77

Step-by-step explanation:

a. find percent = part/whole = 732/1200 = 0.61 = 61%

b. 61% of $2157 = 2157 x 0.61 = $1315.77

we are willing to regard the wood pieces prepared for the lab session as an srs of all similar pieces of douglas fir. engineers also commonly assume that characteristics of materials vary normally. make a graph to show the shape of the distribution for these data. does it appear safe to assume that the normality condition is satisfied?

Answers

If the histogram shows a bell-shaped curve and the normality test (if performed) supports the normality assumption, it appears safe to assume that the normality condition is satisfied for the wood pieces prepared for the lab session, considering them as an SRS of all similar pieces of Douglas fir.



To determine if the normality condition is satisfied, you can follow these steps:

1. Organize the data: Collect the measurements for the characteristics of the wood pieces in your sample (such as density, strength, etc.) and organize them in a list or a table.

2. Create a frequency distribution: Calculate the frequencies of the different measurements and arrange them in a frequency distribution table.

3. Plot a histogram: Using the frequency distribution, create a histogram to visually represent the data. The x-axis represents the measurements and the y-axis represents the frequency.

4. Evaluate the shape of the histogram: Examine the shape of the histogram to determine if it resembles a normal distribution. A normal distribution is characterized by a bell-shaped curve, which is symmetrical around the mean value.

5. Conduct a normality test (optional): If you want to statistically confirm the normality of the data, you can perform a normality test, such as the Shapiro-Wilk test or the Kolmogorov-Smirnov test.

For the wood pieces manufactured for the lab session, using them as an SRS of all comparable pieces of Douglas fir, it is acceptable to infer that the normality criterion is satisfied if the histogram displays a bell-shaped curve and the normality test (if performed) confirms the normality assumption.

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You are planning a test of a payroll control. You have established the following parameters: Risk of incorrect acceptance=10% Tolerable deviation rate=6% Expected deviation rate=2% . a. What should your sample size be for this test? b. After testing the control, you note that you identified 4 deviations in your testing. What is the sample deviation rate for the test? c. What is the upper deviation limit for the test? d. Now it is time to draw a conclusion on whether the control is operating effectively or not. What conclusion do you draw? (Effective or Ineffective)

Answers

a. The sample size for this test should be at least 24.

b. Sample deviation rate = 0.1667 or 16.67%

c. The upper deviation limit for the test is 38.6%.

d. A conclusion on whether the control is operating effectively

or not, we compare the sample deviation rate to the tolerable deviation

rate and the upper deviation limit.

a. To determine the sample size for the test, we can use the formula:

[tex]n = (Z^2 \times p \times (1-p)) / d^2[/tex]

where:

Z = the Z-value for the desired level of confidence, which is typically 1.65 for a 90% confidence level

p = the expected deviation rate

d = the tolerable deviation rate -the maximum acceptable deviation rate

Plugging in the values given, we get:

[tex]n = (1.65^2 \times 0.02 \times 0.98) / 0.06^2[/tex]

n = 23.76

b. The sample deviation rate can be calculated by dividing the number of deviations found in the sample by the sample size:

Sample deviation rate = Number of deviations / Sample size

Sample deviation rate = 4 / 24

Sample deviation rate = 0.1667 or 16.67%

c. The upper deviation limit can be calculated using the formula:

UDL = Sample deviation rate + (Z × √((Sample deviation rate × (1 - Sample deviation rate)) / Sample size))

where:

Z = the Z-value for the desired level of confidence, which is 1.65 for a 90% confidence level

Plugging in the values given, we get:

UDL = 0.1667 + (1.65 × √((0.1667 × (1 - 0.1667)) / 24))

UDL = 0.386

d. To draw a conclusion on whether the control is operating effectively

or not, we compare the sample deviation rate to the tolerable deviation

rate and the upper deviation limit.

In this case, the sample deviation rate (16.67%) is below the tolerable

deviation rate (6%) and also below the upper deviation limit (38.6%). This

suggests that the control is operating effectively and there is no

significant risk of incorrect acceptance.

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For parts a and b, use technology to estimate the following.
a) The critical value of t for a 90% confidence interval with df = 7.
b) The critical value of t for a 99% confidence interval with df = 103.
a) What is the critical value of t for a 90% confidence interval with df = 7?
______ (Round to two decimal places as needed.)
b) What is the critical value of t for a 99% confidence interval with df = 103?
______ (Round to two decimal places as needed.)

Answers

The critical value of t is approximately 1.895.

The critical value of t is approximately 2.626.

What is Confidence Interval?

In statistics, a confidence interval is a range of values calculated from a sample of data that is likely to contain the true value of an unknown population parameter with a certain level of confidence, usually expressed as a percentage. It is a measure of the precision and reliability of an estimate.

a) Using a t-distribution calculator or a t-table with 7 degrees of freedom and a 90% confidence level, the critical value of t is approximately 1.895.

b) Using a t-distribution calculator or a t-table with 103 degrees of freedom and a 99% confidence level, the critical value of t is approximately 2.626.

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a bipartite graph has two disjoint sets of vertices a and b. a has m elements and b has n elements. what is the maximum number of edges in this bipartite graph?

Answers

The maximum number of edges in a bipartite graph with two disjoint sets of vertices A (with m elements) and B (with n elements) is m * n.

In the mathematical field of graph theory, a bipartite graph (or bigraph) is a graph whose vertices can be divided into two disjoint and independent sets and , that is every edge connects a vertex in to one in .

To find the maximum number of edges in a bipartite graph with two disjoint sets of vertices A and B, where A has m elements and B has n elements, you can simply multiply the number of elements in set A by the number of elements in set B.

The maximum number of edges in this bipartite graph is given by the product of the sizes of the two vertex sets, which is m * n.

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