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3 years ago

15 points and brainliest for the answer

Mathematics

1 answer:

hjlf3 years ago

5 0

Answer:

I believe the answer is J. the corresponding angles are proportional, and the corresponding sides are congruent

Step-by-step explanation:

hope this helps :)

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quester [9]

Answer:

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Step-by-step explanation:

3 0

3 years ago

Find the minimum sample size necessary to be 99% confident that the population mean is within 3 units of the sample mean given t

SVEN [57.7K]

Answer:

The minimum sample size required is 207.

Step-by-step explanation:

The (1 - α) % confidence interval for population mean μ is:

$CI=\bar x\pm z_{\alpha /2}\frac{\sigma}{\sqrt{n}}$

The margin of error of this confidence interval is:

$MOE=z_{\alpha /2}\frac{\sigma}{\sqrt{n}}$

Given:

$MOE=3\\\sigma=29\\z_{\alpha /2}=z_{0.01/2}=z_{0.05}=2.576$

*Use a z-table for the critical value.

Compute the value of n as follows:

$MOE=z_{\alpha /2}\frac{\sigma}{\sqrt{n}}\\3=2.576\times \frac{29}{\sqrt{n}} \\n=[\frac{2.576\times29}{3} ]^{2}\\=206.69\\\approx207$

Thus, the minimum sample size required is 207.

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3 years ago

Divide the following polynomial expression. (n^4 +5n^3+9n^2) / 9n^3

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3 years ago

Sales tax is 10.25%. What is the tax on a 300$ bill?

Liula [17]

$30.75
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3 years ago

Divide. Write the answer in simplest form.

Irina-Kira [14]

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3 years ago