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Lilit [14]
2 years ago
5

9. The measure of each exterior angle of a regular pentagon is

Mathematics
1 answer:
Gennadij [26K]2 years ago
3 0

Answer:

55,55

Step-by-step explanation:

hereakaigdidjuwjapwwjshd

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Danny earned $20,000 last year This year he earned $12,000. What is the percentage difference?
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Answer:

60%

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2 years ago
Y=3/4x - 6 find the x-intercept of the line
Ede4ka [16]

Answer:

The x intercept is (8,0)

Step-by-step explanation:

To find the x intercept set y = 0 and solve for x

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The x intercept is (8,0)

4 0
3 years ago
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3 years ago
Sample size: A researcher is trying to decide how many people to survey. Which of the following sample sizes will result in a co
oksian1 [2.3K]

Answer:

Step-by-step explanation:

Given that a researcher is trying to decide how many people to survey.

We have confidence intervals are intervals with middle value as the mean and on either side margin of error.

Confidence interval = Mean ± Margin of error

Thus confidence interval width depends on margin of error.

Margin of error = Critical value *\frac{\sigma}{\sqrt{n} }

Thus for the same confidence level and std deviation we find margin of error is inversely proportional to square root of sample size.

Hence for small n we get wide intervals.

So if sample size = 300, the researcher will get wider confidence interval

4 0
3 years ago
Write as fraction in its lowest form: 0.342 *
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171/500....... is the answer
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2 years ago
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