3 years ago

I need help with this question

Mathematics

1 answer:

lianna [129]3 years ago

3 0

Answer:

188 miles or 188.5 miles

Step-by-step explanation:50-17.95/17

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Step-by-step explanation:

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Wich statment describes the role of a mitochondrion in providing a body with energy

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Assume a normal distribution and that the average phone call in a certain town lasted 4 min, with a standard deviation of 1 min.

olya-2409 [2.1K]

SOLUTION

The mean is 4min

standard deviation is 1min

the z score is

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

where

$\begin{gathered} x=3 \\ \bar{x}=4 \\ \sigma=1 \end{gathered}$

then we have

$\begin{gathered} z=\frac{3-4}{1}=\frac{-1}{1}=-1 \\ z=-1 \end{gathered}$

The probability the call lasted less than 3 min will be

Therefore, the probability that (z < -1 ) is

[tex]\begin{gathered} Pr(z<-1)=Pr(0Hence, the percentage of the calls that lasted less than 3 min is 16%

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1 year ago

A baby’s t-shirt requires 2/9 yards of fabric. How many t-shirts can be made from 38 yards?

Bess [88]

8 4/9 hope this helps!!!

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3 years ago

PLZ HELP A WEEB OUT!!! WILL GIVE BRAINLIST

insens350 [35]

She used the diameter instead of the radius :) instead of cubing 8 she should’ve cubed 4

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