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3 years ago

What is the value of this expression when x = 8?

Mathematics

1 answer:

vovikov84 [41]3 years ago

6 0

Hi!

<h3>Replace all of the Xs in the equation with 8 because <u>X = 8</u></h3><h3>4 * 8 - 6 + 8 + 3</h3>

Now solve.

32 - 6 + 8 + 3

26 + 8 + 3

34 + 3

<h2>The answer is 37</h2>

Hope this helps! :)

-Peredhel

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A pharmaceutical testing company wants to test a new cholesterol drug. The average cholesterol of the target population is 200 m

Rom4ik [11]

Answer:

The required range is 237.5 to 275.

Step-by-step explanation:

Consider the provided information.

The average cholesterol of the target population is 200 mg and they have a standard deviation of 25 mg.

The the value of μ = 200 and the $\sigma=25$

The company wished to test a sample of people who fall between 1.5 and 3 z-scores above the mean.

Let the value of z is 1.5.

Now use the z score formula: $z=\frac{(x -\mu)}{\sigma}$

Substitute the respective values in the above formula.

$1.5=\frac{(x -200)}{25}$

$37.5=x -200$

$237.5=x$

Now let the value of z is 3.

Substitute the respective values in the z score formula.

$3=\frac{(x -200)}{25}$

$75=x -200$

$275=x$

Hence, the required range is 237.5 to 275.

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4 years ago

A foam toy is 2 inches wide. It doubles in size for every minute it is in water. Write an expression for the width of the toy af

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4 years ago

3x sqaured-2x+3 (x=-4)

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Answer:

<h2> The answer is X= -4 </h2>

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