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aleksandrvk [35]
3 years ago
14

What is the value of (4-1/4) / (2-1/2)

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
8 0

Answer:

5/2

Step-by-step explanation:

First lets do 4-1/4

Get lcd which is 4

16/4-1/4=15/4

Now 2-1/2

Lcd is 2

4/2-1/2=3/2

Now divide

(15/4)/(3/2)

15/4 x 2/3=5/2

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3 years ago
An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 280 engines
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In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation(square roof of the variance) and n is the size of the sample.

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