3 years ago

What's the first step in order to solve the exponential equation?

Mathematics

1 answer:

Phoenix [80]3 years ago

4 0

Answer:

I think it's A but I'm not sure

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A positive linear association

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Determine the point estimate of the population mean and margin of error for the confidence interval.Lower bound is 22, upper bou

irakobra [83]

Answer: The point estimate of the population mean is 25.

The margin of error for the confidence interval is 3 .

Step-by-step explanation:

The confidence interval for population mean is given by :-

$(\overline{x}-E , \overline{x}+E)$ , here $\overline{x}$ is the point estimate of the population mean and E is the margin of error .

As per given , we have

Lower bound of CI = $\overline{x}-E =22$ (1)

Upper bound of CI = $\overline{x}+E =28$ (2)

Add (1) and (2) , we get

$2\overline{x}=50\\\Rightarrow\ \overline{x}=25$

Subtract (1) from (2) , we get

$2E=6\\\Rightarrow\ E=3$

Hence, the point estimate of the population mean is 25.

The margin of error for the confidence interval is 3 .

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3 years ago

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Answer:

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Step-by-step explanation:

-4x - 5 > 19

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x < -6

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