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zepelin [54]
3 years ago
6

Higher order thinking math problem

Mathematics
2 answers:
kirill [66]3 years ago
8 0

1.09 feet that is it.


Margaret [11]3 years ago
5 0

Use pythagorean theorem.

5^2 + b^2 = 12^2

25 + b^2 = 144

b^2 = 119

b ≈ 10.9 feet

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in march 2010 while some businesses reported losses abercrombie and Fitch had an 8% increase in sales. when fraction is equivale
topjm [15]

Answer:

8/10 its just 80 out of 100

7 0
4 years ago
An insurance company estimates 45 percent of its claims have errors. The insurance company wants to estimate with 99 percent con
nydimaria [60]

Answer:

We need a sample size of at least 657.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is given by:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

45 percent of its claims have errors.

So \pi = 0.45

99% confidence level

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

What sample size is needed if they wish to be within 5 percent of the actual

This is a sample size of at least n, in which n is found when M = 0.05.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.05 = 2.575\sqrt{\frac{0.45*0.55}{n}}

0.05\sqrt{n} = 1.28

\sqrt{n} = \frac{1.28}{0.05}

\sqrt{n} = 25.62

\sqrt{n}^{2} = (25.62)^{2}

n = 656.4

We need a sample size of at least 657.

6 0
3 years ago
Please help me with this question. 10 points will be awarded.
aalyn [17]

Answer:

BCA

Step-by-step explanation:

\pi ^2, 9.88888888888, \sqrt{99}

5 0
4 years ago
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igomit [66]

Step-by-step explanation:

answers I the above photo

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8 0
3 years ago
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I need help with this, can anybody help me? thank you, have. a great day!
Ganezh [65]

Answer:a

Step-by-step explanation:

4 0
2 years ago
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