3 years ago

1. What is the slope of the line represented by tha sanation 3y = 4x - 12?**

Mathematics

1 answer:

BabaBlast [244]3 years ago

4 0

Answer:

4/3

Step-by-step explanation:

3y=4x-12

divide by 3 to isolate y

y=4/3x-4

slope is 4/3

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Sindrei [870]

Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Doing research for insurance rates, it is found that those aged 30 to 49 drive an average of 38.7 miles per day with a standard

Alja [10]

Answer: 0.4302

Step-by-step explanation:

Given : Mean : $\mu=\text{38.7 miles }$

Standard deviation : $\sigma=\text{6.7 miles }$

Sample size : $n=60$

Also, these distances are normally distributed.

Then , the formula to calculate the z-score is given by :-

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

For x=32.5

$\\\\ z=\dfrac{32.5-38.7}{6.7}=-0.925373134\approx-0.93$

For x=40.5

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Hence, the required probability :-0.4302

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3 years ago