2 years ago

Evaluate the given expression.

Mathematics

1 answer:

AleksAgata [21]2 years ago

3 0

I believe the answer is B

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Algebra 2 please help quickly

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$(f - g)(x) = - 5 {x}^{2} + 5x - 7$

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Dean Halverson recently read that full-time college students study 20 hours each week. She decides to do a study at her universi

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Answer: The p-value is 0.154.

Step-by-step explanation:

Since we have given that

We claim that

Null hypothesis :

$H_0:\mu=20$

Alternate hypothesis :

$H_1:\mu$

Population mean = 20 hours

Sample mean = 18.5 hours

Sample standard deviation = 4.3 hours

Sample size n = 35

So, test statistic would be

$z=\dfrac{\bar{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{18.5-20}{\dfrac{4.3}{\sqrt{35}}}\\\\z=\dfrac{-1.5}{0.726}\\\\z=-2.066$

So, the p value would be 0.154.

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3 years ago

Jason walks a round-trip of 0.85 mile to school every day. How many miles will he walk in 4.5 days?

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4.5 x 0.85 = 3.825

Step-by-step explanation:

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If the area of the rectangle is 130 square inches then what is the rectangles height, h

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Answer:

130/l in where l is the length of the rectangle

Step-by-step explanation:

The formula for area of a rectangle is length by width where the width is the height of the rectangle

Given that area=130 in²

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