Find the circumference of this circle
using 3 for T.
C ~ ?
[?]
36
C = ad
helppp

Find The Circumference Of This Circleusing 3 For T.C ~ ?[?]36C = Adhelppp

Answers

Answer 1

Answer:

C = pi d

C = 3 × 36

C = 108

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Related Questions

A country's population in 1990 was 154 million.

In 2001 it was 159 million. Estimate

the population in 2005 using the exponential

growth formula. Round your answer to the

nearest million.

P= Aekt

Answers

Using the exponential growth formula, the population in 2005 was 161 million.

The equation f(x) = a(1 + r)^x can also be used to compute exponential growth, where: The function is represented by the word f(x). The initial value of your data is represented by the a variable. The growth rate is represented by the r variable. To calculate growth rates, divide the difference between the starting and ending values for the period under study by the starting value.

Growth factor = (159/154) for the eleven-year period between 1990 and 2001.

The population growth might thus be described by the exponential equation

p(t) = 154(159/154)^(t/11), where t is the number of years since 1990.

The model forecasts a population of... p(15) = 154(159/154)^(15/11)

= 160.86 = 161 million

In 2005, there were about 161 million people living there.

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Correct Question:

A country's population in 1990 was 154 million. In 2001 it was 159 million. Estimate the population in 2005 using the exponential growth formula. Round your answer to the nearest million.

The mean weight of an adult is 7676 kilograms with a variance of 100100. If 142142 adults are randomly selected, what is the probability that the sample mean would differ from the population mean by more than 1.51.5 kilograms

Answers

The probability that the sample mean would differ from the population mean by more than 1.5 kilograms is 0.29 or 29%.

To answer this question, we need to use the central limit theorem, which states that the sample mean of a large sample size (n) will follow a normal distribution with a mean equal to the population mean (μ) and a standard deviation equal to the population standard deviation divided by the square root of n (σ/√n).

Given that the population mean weight is 7676 kilograms and the variance is 100100, we can calculate the population standard deviation by taking the square root of the variance, which gives us 316.23 kilograms.

Next, we need to calculate the standard error of the mean, which is the standard deviation of the sample mean. This can be done by dividing the population standard deviation by the square root of the sample size (142142 in this case), which gives us 2.65 kilograms.

Now we can calculate the z-score, which measures the number of standard errors the sample mean differs from the population mean. To do this, we divide the difference between the sample mean (7676 + 1.5 = 7677.5) and the population mean (7676) by the standard error of the mean (2.65), which gives us a z-score of 0.56.

Finally, we can use a normal distribution table or a calculator to find the probability that a z-score is greater than 0.56, which is approximately 0.29.

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please help me y=3×+7 ​

Answers

Could you be a bit more specific on what you are asking for help with? y=3xt7 is the final answer for a y=mx+b question. 3 is the slope and 7 is the y-intercept.

what does the activity ratio measure in the value stream

Answers

The activity ratio in the value stream measures the efficiency of the production process by evaluating the ratio of value-added activities to non-value-added activities.

The activity ratio is a performance metric used in value stream mapping, which is a lean management tool for analyzing and improving the flow of materials and information in a production process.

It focuses on distinguishing value-added activities, which directly contribute to meeting customer requirements, from non-value-added activities, which do not add value but consume resources and time.

By calculating the activity ratio, organizations can assess the proportion of time and resources spent on value-added activities versus non-value-added activities.

A higher activity ratio indicates that a greater portion of resources is dedicated to value-added activities, indicating improved efficiency and reduced waste.

Conversely, a lower activity ratio suggests a higher proportion of resources being utilized for non-value-added activities, indicating potential areas for improvement and waste reduction.

The activity ratio serves as a valuable diagnostic tool for organizations to identify process inefficiencies, bottlenecks, and areas for improvement. By analyzing the activity ratio, organizations can streamline their processes, eliminate waste, and optimize resource allocation to enhance overall productivity and customer value.

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A curve C is defined by the parametric equations x=t^2 , y = t^3 - 3t. (a) Show that C has two tangents at the point (3, 0) and find their equations. (b) Find the points on C where the tangent is horizont

Answers

a) The equations of the two tangents are:

T₁: y =\((3 - \sqrt(3))(x - 3)\)

T₂: y =\((3 - \sqrt(3))(x - 3)\)

b) The points are (1, -2) and (1, -2).

How to find the equations of the tangents to the curve C at the point (3, 0)?

To find the equations of the tangents to the curve C at the point (3, 0), we need to find the derivative of y with respect to x and evaluate it at x = 3.

(a) Finding the tangents at (3, 0):

Find dx/dt and dy/dt

To find the derivative of y with respect to x, we use the chain rule:

dy/dx = (dy/dt)/(dx/dt)

dx/dt = 2t  (differentiating x =\(t^2\))

dy/dt = \(3t^2 - 3\)  (differentiating y =\(t^3 - 3t\))

Express t in terms of x

From x = \(t^2\), we can solve for t:

\(t = \sqrt(x)\)

Substitute t into dx/dt and dy/dt

Substituting \(t = \sqrt(x)\) into dx/dt and dy/dt, we get:

dx/dt = \(2\sqrt(x)\)

dy/dt = \(3(x^{(3/2)}) - 3\)

Find dy/dx

Now, we can find dy/dx by dividing dy/dt by dx/dt:

dy/dx = (dy/dt)/(dx/dt)

      =\((3(x^{(3/2)}) - 3) / (2\sqrt(x))\)

Evaluate dy/dx at x = 3

Substituting x = 3 into dy/dx, we get:

dy/dx = \((3(3^{(3/2)}) - 3) / (2\sqrt(3))\)

      = \((9\sqrt(3) - 3) / (2\sqrt(3))\)

      = \((3(3\sqrt(3) - 1)) / (2\sqrt(3))\)

      = \((3\sqrt(3) - 1) / \sqrt(3)\)

      =\((3\sqrt(3) - 1) * \sqrt(3) / 3\)

      =\(3 - \sqrt(3)\)

Find the equations of the tangents

The equation of a tangent at the point (x₀, y₀) with a slope m is given by:

y - y₀ = m(x - x₀)

For the first tangent, let's call it T₁, we have:

Slope m₁ = \(3 - \sqrt(3)\)

Point (x₀, y₀) = (3, 0)

Using the point-slope form, the equation of the first tangent T₁ is:

y - 0 = \((3 - \sqrt(3))(x - 3)\)

y =\((3 - \sqrt(3))(x - 3)\)

For the second tangent, let's call it T₂, we have:

Slope m₂ = \(3 - \sqrt(3)\)

Point (x₀, y₀) = (3, 0)

Using the point-slope form, the equation of the second tangent T₂ is:

y - 0 =\((3 - \sqrt(3))(x - 3)\)

y = \((3 - \sqrt(3))(x - 3)\)

Therefore, the equations of the two tangents to the curve C at the point (3, 0) are:

T₁: y = \((3 - \sqrt(3))(x - 3)\)

T₂: y = \((3 - \sqrt(3))(x - 3)\)

How to find the points on C where the tangent is horizontal?

(b) Finding the points on C where the tangent is horizontal:

For the tangent to be horizontal, dy/dx must be equal to zero.

dy/dx = 0

\((3(x^(3/2)) - 3) / (2\sqrt(x))=0\)

Setting the numerator equal to zero, we have:

\(3(x^{(3/2)}) - 3 = 0\\x^{(3/2)} - 1 = 0\\x^{(3/2)} = 1\\x = 1^{(2/3)}\\x = 1\)

Substituting x = 1 back into the parametric equations for C, we get:

\(x = t^21 \\\\= t^2t \\= \pm 1\)

\(y = t^3 - 3t\\y = (\pm1)^3 - 3(\pm1)\\y = \pm1 - 3\\y = -2, -2\\\)

Therefore, the points on C where the tangent is horizontal are (1, -2) and (1, -2).

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match the type of attention with its impact on the encoding process.

Answers

Type of Attention Impact on Encoding Process

1. Sustained attention Facilitates thorough encoding of information.

2. Selective attention Enhances encoding of attended stimuli while filtering out irrelevant information.

3. Divided attention Impairs encoding by dividing attentional resources among multiple tasks.

4. Exogenous attention Captures attention involuntarily, potentially interrupting the encoding process.

5. Endogenous attention Voluntarily directed attention that can prioritize specific information for encoding.

1. Sustained attention: Sustained attention refers to the ability to maintain focus over an extended period. It has a positive impact on the encoding process as it allows for thorough and comprehensive encoding of information.

2. Selective attention: Selective attention involves focusing on specific stimuli while filtering out irrelevant information. It enhances the encoding process by directing attention to the relevant stimuli, promoting their effective encoding.

3. Divided attention: Divided attention refers to the attempt to allocate attention to multiple tasks simultaneously. Dividing attention among multiple tasks impairs the encoding process as attentional resources become fragmented, leading to less effective encoding of information.

4. Exogenous attention: Exogenous attention is captured involuntarily by external stimuli, potentially interrupting the encoding process. It can divert attention away from the intended encoding task, resulting in a negative impact on encoding.

5. Endogenous attention: Endogenous attention is voluntarily directed attention that allows individuals to prioritize specific information for encoding. It enhances the encoding process by selectively focusing on relevant stimuli and allocating cognitive resources accordingly.

Different types of attention have varying impacts on the encoding process. Sustained attention and selective attention positively influence encoding, while divided attention and exogenous attention have negative effects. Endogenous attention, on the other hand, can enhance encoding by prioritizing specific information.

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a hot air balloon rises at a rate of 8 feet per second from a point on the ground 60 feet from an observer. find the rate of change of the angle of elevation when the balloon is 25 feet above the ground.

Answers

Rate of change of the angle of elevation = 96/845 radians / sec

To solve this related rate (of change) problem:

Attached is the solution picture.

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a hot air balloon rises at a rate of 8 feet per second from a point on the ground 60 feet from an observer.
a hot air balloon rises at a rate of 8 feet per second from a point on the ground 60 feet from an observer.

find and solve a recurrence relation for the number of ways to arrange flags on an n-foot flagpole using three types of flags: red flags 2 feet high, yellow flags 1 foot high, and blue flags 1 foot high. page 4 of 8

Answers

Let Fn be the number of ways of arranging such flagpole with the given conditions.

When arranging a flagpole of n feet high, consider the following cases

If the last flag used is a red flag, then the other flags are n-1 foot high, so they can be seen as arranged on a smaller flagpole of n-1 feet high, which can be done in Fn-1 ways.

Similarly, If the last flag used is a gold flag, then the other flags can be seen as arranged on a smaller flagpole of n-1 feet high. This can be done in Fn-1 ways.

If the last flag used is green, the other flags are n-2 feet high, so the flagpole can be arranged in Fn-2 ways.

Using the sum rule, we obtain that Fn = 2Fn-1 + Fn-2 for all n≥3. Listing all the combinations of flags, the initial conditions are F1 = 2 and F2 = 3.

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which of the following was traditionally an assumption underlying the independent samples t-test question 10 options: a) scores must be drawn from a normally distributed population b) variances should be unequal in both groups c) data should be at the nominal level d)all of the above

Answers

The assumption underlying the independent samples t-test is that the scores must be drawn from a normally distributed population. Option A is correct.

What is a t-test?

A t-test is a statistical method that determines whether two groups of observations are significantly different from one another. When comparing the means of two populations, the t-test is commonly used. The t-test is used to determine whether two groups' means are significantly different when the samples are drawn from normally distributed populations with equal variances.

The t-test is a powerful tool for determining whether a sample is significantly different from a population or whether two samples are significantly different from one another. The independent samples t-test, as opposed to the dependent samples t-test, is a t-test that compares the means of two independent groups. In this situation, the groups are separate and distinct.

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A consumer charges a $2,530.16 purchase on a credit card. The card has a daily interest rate of 0.042%. If the balance is paid off at the end of 30 days, how much interest will the consumer pay?

Answers

The amount of interest that the customer will pay is given as follows:

$31.88.

How to obtain the simple interest?

The balance of an account after t periods is given as follows:

A(t) = P(1 + rt).

In which the parameters of the equation are explained as follows:

P is the value of the initial deposit.r is the interest rate, as a decimal.

Hence the interest accrued is given as follows:

I(t) = Prt.

The parameters for this problem are given as follows:

P = 2530.16, r = 0.00042, t = 30.

Hence the interest is given as follows:

I(30) = 2530.16 x 0.00042 x 30

I(30) = $31.88.

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Read this word problem.
Connor is playing a card game called At Face Value. At the end of each round, players
earn positive points for their remaining number cards but negative points for their face
cards. At the end of round 1, Connor earns -5 points. At the end of round 2, he earns -6
points. What is Connor's score now?
To solve the problem, Michael added -5 + (-6) and came up with an answer of -11 points. Is
Michael correct? Why or why not?

Answers

Answer:

yes

Step-by-step explanation:

beacuse he is

Read this word problem.Connor is playing a card game called At Face Value. At the end of each round,

how many ways are there for six ce majors and ten cs majors to stand in a line so that no two ce majors stand next to each other?

Answers

There are 1,207,084,032,000 ways for 6 CE majors and 10 CS majors to stand next to each other in the lines.

We use permutations and combinations for solving this problem. We fix the position of CS students so that they can stand in a fixed place by

= 10! ways (i)

Now, there are 11 places left for CE students so that no two CE students stand next to each other.

6 CE students in the rest of the 11 places can sit by = 11! / (11-6)! ways (ii)

Hence, using the values of (i) and (ii), we get -

= (10! * 11!) / (11-6)!

= 1,207,084,032,000

Therefore, we have 1,207,084,032,000 ways in which the six CE majors and ten CS majors can stand in a line so that no two CE majors stand next to each other.

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all three sides of triangle x'y'z' must be to the corresponding sides in triangle xyz and the corresponding angles are .

Answers

The required solution is ∠X'≅∠X, ∠Y'≅∠Y and  ∠Z'≅∠Z.

It is required to find the corresponding angles.

What is angle?

In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle and corner whether constituting a projecting part or a partially enclosed space.

Given :

Corresponding angles are

∠X'≅∠X,

∠Y'≅∠Y

∠Z'≅∠Z

Therefore, the required solution is ∠X'≅∠X, ∠Y'≅∠Y and  ∠Z'≅∠Z.

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In a brand awareness study, 25 of a group of 35 males identify the brand correctly and 15 of a group of 35 females identify this brand correctly. The chi-square value for this study is approximately ________.​

Answers

The approximate chi-square value for this study is 10.84.

In a brand awareness study involving 35 males and 35 females, 25 males and 15 females identified the brand correctly.

To find the chi-square value, we need to create a contingency table and apply the chi-square formula. Here's a quick breakdown of the process:

1. Create a contingency table:
       Males    Females
Correct    25          15
Incorrect  10          20

2. Calculate row and column totals:
       Males    Females    Total
Correct    25          15          40
Incorrect  10          20          30
Total         35          35          70

3. Find the expected frequencies for each cell by multiplying row and column totals and dividing by the overall total (for example, for the 'Correct Males' cell, multiply 40*35 and divide by 70):
       Males    Females
Correct    20          20
Incorrect  15          15

4. Apply the chi-square formula: Χ² = Σ[(Observed-Expected)²/Expected]
Χ² = [(25-20)²/20] + [(15-20)²/20] + [(10-15)²/15] + [(20-15)²/15]
Χ² ≈ 5 + 2.5 + 1.67 + 1.67
Χ² ≈ 10.84

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10×-50
---------- =13
5​

Answers

Answer:

I think it's -500 = 135

Step-by-step explanation:

multiply 10 and -50 to get -500

Carly is making flags for her school's homecoming football game. Each flag requires 0.5 yards
of fabric, and Carly bought 25 yards of fabric.
Write an equation that shows how the number of yards remaining, y, depends on the number
of flags Carly has made, x.
Ver en e

Answers

Equation that shows how the number of yards remaining is: y = 25 - 0.5x

On this case, the number of yards remaining defined as variable y which is depends on the number of flags Carly has made and defined as variable x. We need to define the logic first, y would be decreasing for every x made. The maximum of y while x is 0 and the fabric still at 25 yards. Every flags made defined by x will reduce 0.5 yards of fabric. The total of 25 yards would be fixed and the remaining fabric added with total flags created will be 25 yards.

Based on the logic above we can create this equation.

y + 0.5x = 25

Defined the equation by number of yards remaining:

y= 25 - 0.5x

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= = (1 point) Given x = e-t and y = te41, find the following derivatives as functions of t. dy II dx day dx2 II (1 point) Consider the parametric curve given by the equations x(t) = x2 + 21t – 21

Answers

To find the derivatives of the given functions, we can differentiate them with respect to the variable t. For the first part, we find dy/dx by taking the derivative of y with respect to t and then dividing it by the derivative of x with respect to t. For the second part, we calculate the second derivative of x with respect to t.

Given x = e^(-t) and y = t*e^(4t), we can find the derivatives as functions of t. To find dy/dx, we take the derivatives of y and x with respect to t:

dy/dt = d/dt(te^(4t)) = e^(4t) + 4te^(4t),

dx/dt = d/dt(e^(-t)) = -e^(-t).

Now, we can find dy/dx by dividing dy/dt by dx/dt:

dy/dx = (e^(4t) + 4te^(4t))/(-e^(-t)) = -(e^(4t) + 4te^(4t))*e^t.

For the second part, we are given x(t) = \(t^{2}\)+ 21t - 21. To find the second derivative of x with respect to t, we differentiate it twice:

d^2x/dt^2 = d/dt(d/dt(\(t^{2}\)+ 21t - 21)) = d/dt(2t + 21) = 2.

In summary, the derivatives as functions of t are:

dy/dx = -(e^(4t) + 4t*e^(4t))*e^t,

d^2x/d\(t^{2}\) = 2.

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Let Y 1 ,Y2 and Y3 be independent and identically distributed random variables with expectation E[Yi ]=μ and variance V[Yi ]=σ 2
for i=1,2,3. Suppose we want to estimate the expectation μ, and we propose to combine our three observations Y 1 ,Y2 and Y3 by defining a weighted average: Yˉω =ω1 Y1+ω 2Y2 +ω3 Y3 where ω1 ,ω2 and ω3

are constants between 0 and 1 . 1 (a) Calculate E[ Y
ˉ
ω

]. What condition do the weights ω 1

,ω 2

and ω 3

need to satisfy for Y
ˉ
ω

to be an unbiased estimator for μ ? (b) Calculate V[ Y
ˉ
ω

]. Using the condition you found on (a), find the set of weights that minimize the variance of Y
ˉ
ω

. Justify your answer. Now suppose that observations Y 1

,Y 2

and Y 3

are independent and have the same mean μ, but they have different variances. Specifically, V[Y 1

]=V[Y 2

]=σ 2
and V[Y 3

]=2σ 2

Answers

a.) The weights, ω1 + ω2 + ω3 = 1. b.) The weights, V[Y_bar ω] = ω1²V[Y1] + ω2²V[Y2] + ω3²V[Y3] = ω1²σ² + ω2²σ² + ω3²σ² = σ²(ω1² + ω2² + ω3²). To estimate the expectation μ, we propose combining three independent and identically distributed random variables Y1, Y2, and Y3 using a weighted average, Y_bar ω = ω1Y1 + ω2Y2 + ω3Y3.

(a) The weights ω1, ω2, and ω3 need to satisfy the condition ω1 + ω2 + ω3 = 1 for Y_bar ω to be an unbiased estimator for μ. The expectation E[Y_bar ω] is calculated as E[Y_bar ω] = ω1E[Y1] + ω2E[Y2] + ω3E[Y3] = ω1μ + ω2μ + ω3μ = (ω1 + ω2 + ω3)μ. For Y_bar ω to be an unbiased estimator for μ, its expectation should equal μ. Therefore, ω1 + ω2 + ω3 = 1.

(b) The variance V[Y_bar ω] can be calculated as V[Y_bar ω] = V[ω1Y1 + ω2Y2 + ω3Y3]. Since Y1, Y2, and Y3 are independent, the variance of their sum is the sum of their variances. Therefore, V[Y_bar ω] = ω1²V[Y1] + ω2²V[Y2] + ω3²V[Y3] = ω1²σ² + ω2²σ² + ω3²σ² = σ²(ω1² + ω2² + ω3²). The variance of Y_bar(ω) can be calculated, and by applying the condition from (a), the set of weights that minimize the variance can be determined.

To minimize the variance, we can apply the condition from (a), ω1 + ω2 + ω3 = 1, and use a technique called Lagrange multipliers. By introducing the Lagrange multiplier λ, we form the Lagrangian L = σ²(ω1² + ω2² + ω3²) + λ(ω1 + ω2 + ω3 - 1). Taking partial derivatives with respect to ω1, ω2, ω3, and λ, we can solve the equations to find the set of weights that minimize the variance. The specific values will depend on the given values of σ² and the constraints imposed by the problem.

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a water wave travels a distance of 10.0 meters in 5.0 seconds. what can be determined from this information?

Answers

The speed of the water wave is 2.0 meters per second.

The speed of a wave is calculated by dividing the distance traveled by the time it takes to travel that distance. In this case, the distance traveled by the water wave is 10.0 meters, and the time taken is 5.0 seconds.

To determine the speed, we use the formula:

Speed = Distance / Time

Substituting the given values, we have:

Speed = 10.0 meters / 5.0 seconds = 2.0 meters per second

Therefore, from the given information, we can determine that the speed of the water wave is 2.0 meters per second.

This information about the speed of the water wave is useful for various purposes. It allows us to understand how quickly the wave is propagating through the medium. It also helps in analyzing wave behavior, such as interference, reflection, or refraction, and studying the characteristics of the medium through which the wave is traveling. Additionally, the speed of the wave can be used in calculations involving wave frequencies, wavelengths, and periods.

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For the Adjusted R Squared, which of the following is true: a. Is the same R 2
as in the simple linear regression b. Can decrease if the addition of another X regressor does not lower SSR enough relative to the impact of the increase of k by another X regessor. c. Is between 0 and 1 d. Measures the ratio of the sum of squared residuals compared to the total sum of squares

Answers

The correct statement is c. The Adjusted R-squared is a measure used in multiple regression analysis that is between 0 and 1. It is different from the R-squared value in simple linear regression.

The Adjusted R-squared can decrease if the addition of another X regressor does not sufficiently lower the sum of squared residuals (SSR) relative to the impact of increasing the number of predictors (k). It measures the proportion of the variance explained by the predictors, adjusted for the number of predictors and the sample size, rather than the ratio of the sum of squared residuals to the total sum of squares. It provides a measure of how well the regression model fits the data, and it ranges between 0 and 1. A value closer to 1 indicates that a higher proportion of the variance in the dependent variable is explained by the predictors.

Adding another X regressor to the multiple regression model can impact the Adjusted R-squared. If the additional regressor does not significantly contribute to reducing the sum of squared residuals (SSR) relative to the increase in the number of predictors (k), the Adjusted R-squared can decrease. This means that the added regressor does not improve the model's ability to explain the variance in the dependent variable adequately.

However, the Adjusted R-squared does not directly measure the ratio of the sum of squared residuals to the total sum of squares. Instead, it represents the proportion of the variance explained by the predictors, adjusted for the number of predictors and the sample size. It penalizes models with a large number of predictors that may overfit the data, thereby providing a more reliable measure of the model's goodness of fit.

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The Gallup Poll asked a random sample of 1785 adults if they attended church during the past week. Let p

be the proportion of people in the sample who attended church. A newspaper report claims that 40% of all U.S. adults went to church last week. Suppose this claim is true. a. Verify the conditions for a valid sampling distribution for p : b. Describe the sampling distribution of p : c. Of the poll respondents, 44% said they did attend church last week. Find the probability of obtaining a sample of 1785 adults in which 44% or more say they attended church last week, assuming the newspaper report's claim is true.

Answers

a. The conditions for a valid sampling distribution for p are:

Randomization Condition: The sample of 1785 adults must be selected randomly from the population of all U.S. adults.

10% Condition: The sample size, 1785, must be less than 10% of the population of all U.S. adults.

Success/Failure Condition: The number of successes (people who attended church) and failures (people who did not attend church) in the sample must both be at least 10.

b. The sampling distribution of p is approximately normal with mean equal to the true proportion of U.S. adults who attended church last week, which is given as 0.40 in the newspaper report. The standard deviation of the sampling distribution can be calculated using the formula:

sqrt[(p*(1-p))/n]

where p is the true proportion and n is the sample size. Substituting p=0.40 and n=1785, we get:

sqrt[(0.40*(1-0.40))/1785] = 0.014

Therefore, the sampling distribution of p has mean 0.40 and standard deviation 0.014.

c. To find the probability of obtaining a sample of 1785 adults in which 44% or more say they attended church last week, assuming the newspaper report's claim is true, we need to calculate the z-score and use a standard normal table or calculator to find the corresponding probability.

The z-score can be calculated using the formula:

z = (x - mu) / sigma

where x is the sample proportion, mu is the population proportion (given as 0.40), and sigma is the standard deviation of the sampling distribution (calculated as 0.014 above). Substituting x=0.44, mu=0.40, and sigma=0.014, we get:

z = (0.44 - 0.40) / 0.014 = 2.857

Using a standard normal table or calculator, we find that the probability of obtaining a z-score of 2.857 or higher is approximately 0.0021.

Therefore, the probability of obtaining a sample of 1785 adults in which 44% or more say they attended church last week, assuming the newspaper report's claim is true, is approximately 0.0021.

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A student is trying to solve the set of two equations given below:Equation A: x + z = 6 Equation B: 2x + 4z = 1Which of the following is a possible step used in eliminating the z-term? (5 points)Multiply equation B by 4.Multiply equation A by 2.Multiply equation A by −4.Multiply equation B by 2.

Answers

System of Equations

Given the system of equations:

x + z = 6

2x + 4z = 1

To solve the system by the elimination method, we must make the coefficients of one variable opposite.

It's required to eliminate the z-term which means we must make the coefficients of z opposite on both equations.

The coefficient of z is 4 in the second equation, so to eliminate the variable, we must multiply the first equation by -4 as follows:

-4x - 4z = -24

Now when we add both equations, the z is eliminated.

Answer: Multiply equation A by −4.

Jonathan and Pedro are collecting clothes for a clothing drive. Pedro collected 1/2 as many
clothes as Jonathan did. If Jonathan collected 4 bags of clothes, how many bags of clothes
did Pedro collect?
Writo your answer as a fraction or as a whole or mixed number.

Answers

Answer:

2

Step-by-step explanation:

4/2=2

PLSSS HELP IF YOU TRULY KNOW THISSS

PLSSS HELP IF YOU TRULY KNOW THISSS

Answers

Answer:

A

Step-by-step explanation:

5/18 = 0.2777 = 0.27° so when you divided thd no. it is 0.277777 and 7 is repeat .

PLSSS HELP IF YOU TRULY KNOW THISSS

Mrs. Oasis drove from Albany to Pittsburgh. She stopped to rest every 95 kilometers. How many stops did she make? How many kilometers were left after her last stop during the trip?

Answers

Answer:

a. 7 times

b. 74.7 km

Step-by-step explanation:

a. From Albany to Pittsburgh, there are 739.7 km.

She stopped to rest after every 95 kilometres:

Therefore, let us find how many times she stopped:

739.7 / 95 = 7.79

We only need the quotient, that is, 7

So she stopped 7 times.

b. After her last stop, she had traveled:

7 * 95 = 665 km

Therefore, the distance she has left after her last stop is:

739.7 - 665 = 74.7 km

2. If 1/2 of a gallon of paint covers 1/8 of a wall, how much paint is needed to cover the entire wall?
A) 8 2/3 gallons
B) 8 1/3 gallons
C) 3 gallons
D) 2 gallons

Please help !

Answers

Closest answer would be

C.) 3 gallons

Answer: 4 gallons.

Step-by-step explanation:

With this equation, we can use the ratio 1/2 : 1/8. For every 1/2 gallon of paint, 1/8 of a wall is painted.

If 1/2 gallons covers 1/8 of a wall, then we need 8 of the 1/2 gallons to cover the whole wall. We canrepresent this by multiplying 8 and 1/2.

8 x 1/2 = 4.

Because of this, 4 gallons of paint are needed to cover he entire wall.

(Quick note: I don't know why, but the answer choices seem kind of weird. But the answer is 4 :])

Dr Michael prescribes 300mg a day of medicine to a patient. Each pill has 15mg of medicine. How many pills will the patient need for

Answers

Answer:

20

Step-by-step explanation:

15 x 10 = 150. 150 x 2 = 300. 300mg = 20 pills.

a sign in the elevator of a college library indicates a limit of 16 persons. in addition, there is a weight limit of 2,500 pounds. assume that the average weight of students, faculty, and staff at this college is 155 pounds, that the standard deviation is 29 pounds, and that the distribution of weights of individuals on campus is approximately normal. a random sample of 16 persons from the campus will be selected.

Answers

The probability that a randomly selected group of 16 individuals from the campus will be selected is 0.8023 or 80.23%

Based on the sign in the elevator of the college library, the limit of 16 persons and weight limit of 2,500 pounds need to be adhered to. To ensure compliance with both limits, we need to consider both the number of people and their weight.

Assuming that the distribution of weights of individuals on campus is approximately normal with an average weight of 155 pounds and a standard deviation of 29 pounds, we can use this information to estimate the total weight of a group of 16 randomly selected individuals.

The total weight of a group of 16 individuals can be estimated as follows:

Total weight = 16 x average weight = 16 x 155 = 2480 pounds

To determine if this total weight is within the weight limit of 2,500 pounds, we need to consider the variability in the weights of the individuals. We can do this by calculating the standard deviation of the total weight using the following formula:

Standard deviation of total weight = square root of (n x variance)

where n is the sample size (16) and variance is the square of the standard deviation (29 squared).

Standard deviation of total weight = square root of (16 x 29^2) = 232.74

Using this standard deviation, we can calculate the probability that the total weight of the group of 16 individuals is less than or equal to the weight limit of 2,500 pounds:

Z-score = (2,500 - 2,480) / 232.74 = 0.86

Using a standard normal distribution table or calculator, we can find that the probability of a Z-score less than or equal to 0.86 is approximately 0.8023.

Therefore, the probability that a randomly selected group of 16 individuals from the campus will comply with both the number and weight limits in the elevator of the college library is approximately 0.8023 or 80.23%.

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Solve (2x-5)^1/3=3
Your anwser should be 16
SHOW WORK

Answers

Answer:

16

Step-by-step explanation:

(2x-5)^(1/3) = 3, we can start by cubing both sides of the equation to get rid of the cube root. This gives us (2x-5)^(1/3)^3 = 3^3, which simplifies to 2x-5 = 27. Solving for x, we get x = (27+5)/2 = 16. So, the solution to the equation (2x-5)^(1/3) = 3 is x = 16.

How do you find the area of a rhombus without diagonals?

Answers

The area of a rhombus can be found by multiplying the length of one of its sides by the height of a perpendicular line from the center to a side.

The height of the rhombus is the distance from the center of the rhombus to one of its sides, perpendicular to that side.

The formula for the area of a rhombus can be written as A = s*h, where A is the area, s is the length of one of the sides of the rhombus, and h is the height of the rhombus.

It's important to note that this method of finding the area of a rhombus without diagonals can only be used when the rhombus is a regular polygon, a polygon with all sides and angles congruent. When the rhombus is not a regular polygon, then you can find the area by using the diagonals.

Additionally, it's important to mention that a rhombus can be defined as a parallelogram with all sides congruent or a square with its angles not 90 degrees.

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