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Eva8 [605]
3 years ago
6

GEOMETRY HELP WILL MARK BRAINLIEST

Mathematics
2 answers:
ASHA 777 [7]3 years ago
3 0

Answer: x=12.49

10^2 + x^2= 16^2

100 + x^2= 256

x^2=156

x=12.49

photoshop1234 [79]3 years ago
3 0

Step-by-step explanation:

<u>Step 1:  Use Pythagorean Theorem</u>

a^2 + b^2 = c^2

10^2 + b^2 = 16^2

100 + b^2 = 256

100-100 + b^2 = 256-100

b^2 = 156

\sqrt{b^2}=\sqrt{156}

b = 12.48999599679679641169378624188

b = 12.49

Answer: 12.49

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Zolol [24]

Answer: 10 customers.

Step-by-step explanation:

The formula to find the required sample size :

n=p(1-p)(\dfrac z^*}{E})^2        (1)

, where p= prior population proportion.

n= sample size.

\sigma = Population standard deviation from previous studies.

Let p be prior population proportion of the customers who click on ads on their smartphones .

As per given , we have

p=0.62

E= 0.27

For 92% confidence , significance level : \alpha=1-0.92=0.08

The critical value of z for 92% confidence interval from z-table would be

z_{\alpha/2}=z_{0.04}=1.75

Put theses values in the formula (1), we will get

n=(0.62)(1-0.62)(\dfrac{(1.75)}{0.27})^2

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Therefore , the company should survey 10 customers .

6 0
3 years ago
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fiasKO [112]

Answer

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8 0
3 years ago
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Step-by-step explanation:

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