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harkovskaia [24]
2 years ago
11

John needs to wrap the edge of his rectangular desk with duct tape. He knows the width is 10/8 of a meter and the length is 3/8

of a meter. How much duct tape does he need to wrap the desk’s perimeter?
Mathematics
1 answer:
Zielflug [23.3K]2 years ago
7 0

Answer: 1 and 5/8

Step-by-step explanation:

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Lowest common multiple of 90 and 63
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Answer:

630

Step-by-step explanation:

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3 years ago
Read 2 more answers
Can someone explain Part B to me please? I'm trying to practice for SBAC but I don't get this.
Finger [1]
On part A you put 1/2 being greater, so part B would be the opposite which would be 1/8
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3 years ago
A rental car company claims the mean time to rent a car on their website is 60 seconds with a standard deviation of 22 seconds.
Gelneren [198K]

Answer:

Since the calculated value of Z does not fall in the critical region we accept our null hypothesis that mean = 60 seconds

Step-by-step explanation:

State the null hypothesis

H0: u = 60against the claim

Ha u≠   60   (this is a two tailed test)

Sample size n= 36

Sample mean=X`= 55

Population mean = u= 60

The significance level α = 0.05

Standard deviation= Sd = 22 seconds

Z= X`- u / Sd /√n

Z= 55- 60 / 22/√6

z= - 5/22/6

Z= -1.3635

The value of z from the table is Z∝/2= ±1.96

The critical region is less than - 1.96 and greater than 1.96.

Since the calculated value of Z does not fall in the critical region we accept our null hypothesis that mean = 60 seconds

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