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Sever21 [200]
3 years ago
8

Factor completely. 1^3-8x^2+16

Mathematics
1 answer:
Ratling [72]3 years ago
3 0

Answer:

-8x^2+17

Step-by-step explanation:

Evaluate the exponent.

1^3-8x^2+16

1-8x^2+16

Add the numbers.

17-8x^2.

Rearrange terms (final answer).

-8x^2+17.

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Answer:    (4.24,\ 5.36 )

Step-by-step explanation:

The  confidence interval to estimate the population mean is given by :_

\overline{x}\ \pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 60 , the sample is a large sample (n>30), so we can apply z-test.

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\Rightarrow\ \alpha=0.05

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Then, a 95% confidence interval estimate of the population mean will be

=4.8\ \pm\ (1.96)\dfrac{2.2}{\sqrt{60}}\\\\=4.8\pm0.56=(4.8-11.76, 4.8+11.76)=(4.24,\ 5.36 )

Hence, the  95% confidence interval to estimate the population mean = (4.24,\ 5.36 ).

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HELP!!!! WILL MARK BRAINLIEST!!!!
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I would say the answer is G because it seems the most accurate than the other ones.

Step-by-step explanation:

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