3 years ago

10 cm12 cm find area each shaded area

1 answer:

7 0

Do u have a diagram to show

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nignag [31]

27
you multiply .30 times 90 and you get 27

5 0

3 years ago

mrs_skeptik [129]

Answer:

with what you didnt say what you needed help with

Step-by-step explanation:

8 0

3 years ago

Elodia [21]

I did this really quick so I hope all the answers are right, and double check them if you have time just in case

4 0

3 years ago

Dmitrij [34]

Answer: The value of test statistic is 2.442.

Step-by-step explanation:

Since we have given that

n = 238

Sample mean = 23.2 minutes

Standard deviation = 20.26 minutes

Hypothesis :

$H_0:\mu=20\\H_a:\mu\neq 20$

So, the test statistic value would be

$z=\dfrac{\bar{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{23.2-20}{\dfrac{20.26}{\sqrt{236}}}\\\\z=2.442$

Hence, the value of test statistic is 2.442.

4 0

3 years ago

Serhud [2]

The blank box should be equal to 4

5 0

3 years ago

10 cm12 cm find area each shaded area​