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3 years ago

Given the function g(x)=−2x−8, evaluate g(0).

Mathematics

1 answer:

Vera_Pavlovna [14]3 years ago

7 0

Answer:

g(0) = -8

Step-by-step explanation:

When you plug in a zero for the x the equation will look like

g(0) = -2(0) - 8

-2 times 0 = 0 so g(0) = -8

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3 years ago

A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys

expeople1 [14]

Answer:

The probability that a randomly selected boy in secondary school can run the mile in less than 302 seconds is 0.0107

Step-by-step explanation:

Consider the provided information.

It is given that mean is 440 seconds and standard deviation is 60 seconds.

z factor for less than 302 seconds would be: $z=\frac{x-\mu}{\sigma}$

z = (302 - 440) / 60 = -2.3

The probability of getting a z factor of less than -2.3 = 0.0107 approximately.

looking up in the z-table for a z factor of -2.3.

The probability of a student running the mile in less then 302 seconds would be 0.0107.

Hence, the probability that a randomly selected boy in secondary school can run the mile in less than 302 seconds is 0.0107

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3 years ago

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Answer:

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3 years ago

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slavikrds [6]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

Find the inverse of the function f(x)=x-7

gulaghasi [49]

Answer:

$f^{-1}$ (x) = x + 7

Step-by-step explanation:

Let y = f(x) and rearrange making x the subject, that is

y = x - 7 ( add 7 to both sides )

y + 7 = x

change y back into terms of x, then

$f^{-1}$ (x) = x + 7

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3 years ago