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3 years ago

Given f(x) = 70 + 11x, find x when f(x) =158

Mathematics

1 answer:

Mumz [18]3 years ago

5 0

Answer:

$\huge \boxed{x = 8}$

Step-by-step explanation:

f(x) = 70 + 11x

To find the value of x when f(x) =158 , equate f(x) to 158

We have

$70 + 11x = 158 \\ 11x = 158 - 70 \\ 11x = 88$

Divide both sides by 11

$\frac{11x}{11} = \frac{88}{11} \\$

We have the final answer as

Hope this helps you

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3 years ago

For the data set 6,5,10,11,13, the mean, x, is 9. What is the standard deviation?

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Answer:

3.39

Step-by-step explanation:

We will use SD formula to find our answer.

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Upon adding the square of distances we will get,

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