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saul85 [17]
3 years ago
8

What is the solution set for

Mathematics
1 answer:
AlladinOne [14]3 years ago
7 0

Answer:

{ 4i, - 4i }

Step-by-step explanation:

Given

3x² + 48 = 0 ( subtract 48 from both sides )

3x² = - 48 ( divide both sides by 3 )

x² = - 16 ( take the square root of both sides )

x = ± \sqrt{-16} = ± 4i

solution set is { - 4i, 4i }

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Using the z-distribution, it is found that the 95% confidence interval for the difference is (-1.3, -0.7).

<h3>What are the mean and the standard error for each sample?</h3>

Considering the data given:

\mu_S = 3.8, n = 175, s_S = \frac{1.7}{\sqrt{175}} = 0.1285

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<h3>What is the confidence interval?</h3>

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We have a 95% confidence interval, hence the critical value is of z = 1.96.

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More can be learned about the z-distribution at brainly.com/question/25890103

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