2 years ago

WORD PROBLEMS

Mathematics

1 answer:

garri49 [273]2 years ago

8 0

Answer:

The answer is

Step-by-step explanation:

Step by step

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The answer choices are 89, 91, 92 and 94

denis23 [38]

Answer:

Step-by-step explanation:

first solve for x:

3x+22+3x+14= 180

6x+36= 180

6x= 144

x= 24

next fill the equation for angle 4 back in with x and solve:

3(24)+22= 94

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2 years ago

What is the factor 5k2 - 35k3.

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nika2105 [10]

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2 years ago

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A(n) __________ is a number that the variable is multiplied by. It is usually found immediately before the variable. numerical e

Ilia_Sergeevich [38]

I think it is coefficient variable.

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2 years ago

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The owner of Limp Pines Resort wanted to know the average age of its clients. A random sample of 25 tourists is taken. It shows

erma4kov [3.2K]

Answer:

C. ± 2.326 years.

Step-by-step explanation:

We have the standard deviation for the sample. So we use the t-distribution to solve this question.

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.98}{2} = 0.01$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.01 = 0.99$ , so $z = 2.326/tex]Now, find the width of the interval[tex]W = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this question:

$\sigma = 5, n = 25$

$W = z*\frac{\sigma}{\sqrt{n}}$

$W = 2.326*\frac{5}{\sqrt{25}}$

The correct answer is:

C. ± 2.326 years.

7 0

2 years ago