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ICE Princess25 [194]
2 years ago
9

PLEASE HELP!!!!! Lines BC and EF meet at A. Set up an equation to find the value of x. Find the measurements of EAH and HAC

Mathematics
1 answer:
allsm [11]2 years ago
6 0

Answer:

Value of X = 21

EAH = 63

HAC = 84

Step-by-step explanation:

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A researcher believes that 12% of a simple random sample of adults will be able to identify a Toyota Scion by brand and model na
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Answer: 650

Step-by-step explanation:

When prior estimate of population proportion is known , then the formula to find the required sample size is given by :-

n=p(1-p)(\dfrac{z^*}{E})^2

, where p= population proportion

E= margin of error

z* = Critical value.

Let p be the proportion of adults able to identify a Toyota Scion by brand and model name.

As per given , we have

p = 12%= 0.12

E= 2.5%=0.025

Critical value for 95% confidence interval : z* = 1.960  [By z-table ]

Then, the required sample size = n=(0.12)(1-(0.12))(\dfrac{1.96}{0.025})^2

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n=(0.1056)(6146.56)

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Thus , the required sample size = 650

6 0
3 years ago
How many degrees there in 3/5 right angle<br><br>A. 180<br>B. 90<br>C. 150<br>D. 54​
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Answer:

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Step-by-step explanation:

Right angle = 90°

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