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Dovator [93]
3 years ago
7

I need help asap please

Mathematics
1 answer:
daser333 [38]3 years ago
5 0

Answer:

A, D, and F

Step-by-step explanation:

Tiara did multiply and regroup correctly in the first partial product. Tiara did not multiply and regroup correctly in the second partial product. Tiara was not correct when she added her 2 partial products.

Tiara should of got 18,291 but instead she got 16,291.

When she went to the part to multiply 3x4 she didn't add the remaining 2 from the 3x6+2. So if she did 3x4+2 she would of got the number 14 instead of 12 to put down in the second partial product. Which would make the addition part of it as 4,221 + 14070 = 8291 instead of 4,221 + 12,071 = 16, 291

I hope you understand :)

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How could you use the Distributive Property to rewrite the expression −(8 + 12)?
guajiro [1.7K]

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Step-by-step explanation:

-8-12=-20

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Out of 100 people sampled, 42 had kids. Based on this, construct a 99% confidence interval for the true population proportion of
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Answer:

The 99% confidence interval for the true population proportion of people with kids is (0.293, 0.547).

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.

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In which

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This means that n = 100, \pi = \frac{42}{100} = 0.42

99% confidence level

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The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.42 - 2.575\sqrt{\frac{0.42*0.58}{100}} = 0.293

The upper limit of this interval is:

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The 99% confidence interval for the true population proportion of people with kids is (0.293, 0.547).

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Answer:

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Answer:

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