2 years ago

Which of the following describe 9.49?

Mathematics

1 answer:

mylen [45]2 years ago

8 0

Answer:take 9x49

Step-by-step explanation:

You’ll get the answer

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Answer: 0.4758

Step-by-step explanation:

Given : Mean : $\mu=137\text{ lb}$

Standard deviation : $\sigma =28.9\text{ lb}$

Also, the new population of pilots has normally distributed .

The formula to calculate the z-score :-

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

For x=130 lb .

$z=\dfrac{130-137}{28.9}=-0.2422145\approx-0.24$

For x=171lb.

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7. The value of y varies directly with x, and y = 8 when x = 2.<br> Find y when x = 10.

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Answer:

Step-by-step explanation:

Rule Example

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