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3 years ago

The Community center for Watercrest has a large glass wall that looks out the lake Find The Area For the glass wall

Mathematics

1 answer:

VikaD [51]3 years ago

4 0

The wall has a shape of trapezium, the area will therefore be given by:
A=1/2(a+b)*h
where a and b are the side length, h is height:
a=25, b=15, h=40
thus the area of the wall will be:
A=1/2(25+15)×40
A=1/2×40×40
A=800 ft²
Answer: Area=800 ft²

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3 years ago

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Answer:

Null Hypothesis

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Alternative Hypothesis

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Step-by-step explanation:

Explanation:-

Null Hypothesis :-

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Alternative Hypothesis:

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3 years ago

The length of time needed to complete a certain test is normally distributed with mean 62 minutes and standard deviation 8 minut

NeX [460]

Answer: the correct option is e

Step-by-step explanation:

Since the The length of time needed to complete a certain test is normally distributed, we would apply the the formula for normal distribution which is expressed as

z = (x - u)/s

Where

x = The length of time needed to complete a certain test

u = mean time

s = standard deviation

From the information given,

u = 62 minutes

s = 8 minutes

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P(x lesser than or equal to 74)

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3 years ago

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4 years ago