Ask question

Ask question

All categories

2 years ago

12

Each side of a square classroom measures 20 feet. The teacher wants to put a border around the top of the classroom that costs $

1. 00 per foot. How much will the border cost?

1 answer:

Butoxors [25]2 years ago

4 0

Answer:

it is 80.00

Step-by-step explanation:

just trust me you are going to get it right.

You might be interested in

What is 7•8+1•40. Explain your answer

zaharov [31]

Answer:

96

Step-by-step explanation:

We will use the order of operations to solve the equation

7×8+1×40

multiplication before addition, so we do this first:

7×8=56

We change the equation to this:

56+1×40

Then we multiply:

1×40=40

We change the equation to this:

56+40

Then we add to solve:

56+40=96

3 0

3 years ago

Christian randomly selects students from his grade to rate a math test as easy, moderate, or difficult. Of the students he surve

Paraphin [41]

Answer:

C.

84

Step-by-step explanation:

This question is solved using proportions.

From the sample:

11 + 3 = 14 out of 13 + 11 + 3 = 27 would rate the test something other than easy.

Out of 162:

Applying the rule of three:

14 - 27

x - 162

Applying cross multiplication:

$27x = 14*162$

$x = \frac{14*162}{27}$

$x = 84$

Thus the correct answer is given by option C.

8 0

3 years ago

I need help with dis giving brainliest

prohojiy [21]

I only know number 2, the diameter is T to P

4 0

3 years ago

Which of the following correctly uses absolute value to show the distance between −70 and 15?

hammer [34]

Use the distance formula to get your answer. The distance formula is d=sqrt(x2-x1)^2+(x1-y1)^2 Once you plug your coordinates into it, you'll get your answer.

7 0

3 years ago

A study by Allstate Insurance Co. finds that 82% of teenagers have used cell phones while driving (the Wall Street Journal, May

Strike441 [17]

The probability that the sample proportion is within ± 0.02 of the population proportion is 0.3328

<h3>How to determine the probability?</h3>

The given parameters are:

Sample size, n = 100
Population proportion, p = 82%

Start by calculating the mean:

$\mu = np$

$\mu = 100 * 82\%$

$\mu = 82$

Calculate the standard deviation:

$\sigma = \sqrt{\mu(1 - p)$

$\sigma = \sqrt{82 * (1 - 82\%)$

$\sigma = 3.84$

Within ± 0.02 of the population proportion are:

$x_{min} = 82 * (1 - 0.02) = 80.38$

$x_{max} = 82 * (1 + 0.02) = 83.64$

Calculate the z-scores at these points using:

$z = \frac{x - \mu}{\sigma}$

So, we have:

$z_1 = \frac{80.36 - 82}{3.84} = -0.43$

$z_2 = \frac{83.64 - 82}{3.84} = 0.43$

The probability is then represented as:

P(x ± 0.02) = P(-0.43 < z < 0.43)

Using the z table of probabilities, we have:

P(x ± 0.02) = 0.3328

Hence, the probability that the sample proportion is within ± 0.02 of the population proportion is 0.3328

Read more about probability at:

brainly.com/question/25870256

#SPJ1

4 0

2 years ago