At what value of x does the minimum or maximum occur for the function below? f(x) = 8(x + 8)2 + 9 A. maximum at x = 9 B. minimum

at x = 9 C. maximum at x = -8 D. minimum at x = -8

Mathematics

1 answer:

WINSTONCH [101]3 years ago

3 0

$8 {(x + 8)}^{2} + 9 \geqslant 9 \: ( {(x + 8)}^{2} \geqslant 0) \\ \Leftrightarrow x + 8 = 0\Leftrightarrow x = - 8 \\ \Rightarrow D.\: Minimum\: at\: x=-8$

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Consider a value to be significantly low if its z score less than or equal to minus 2 or consider a value to be significantly hi

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Answer:

The scores that are less than or equal to 10.8 are considered significantly low.

The scores that are greater than or equal to 32.4 are considered significantly high.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 21.6

Standard Deviation, σ = 5.4

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Significantly high score:

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Step-by-step explanation:

We can solve the problem in this way:

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