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3 years ago

7

F(x) = x^2 + 7x-4 find the second derivative

2 answers:

Ulleksa [173]3 years ago

5 0

We know that f(x) = 7x + 8. So, take the derivative of this function with respect to x.

This gives

f'(x) = 7

Now, you probably realized that the x value disappeared. This means that no matter what value of x you use, the derivative of this function is always going to be 7, even at x = 5. That is, the rate of change of this function is always going to be a rate of 7.

stira [4]3 years ago

4 0

2x + 7 as the you use the power rule to find the derivative of x^2 and 7x, since -4 is a constant the derivative of it would be 0

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Answer:

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Step-by-step explanation:

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Shalnov [3]

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b) The critical value that should be used in constructing the confidence interval

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Step-by-step explanation:

<u><em>Step(i)</em></u> :-

Noise levels at 3 airports were measured in decibels yielding the following data

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x-x⁻ : -30 8 22

(x-x⁻ )² : 900 64 484

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<u><em>Step(ii):</em></u>-

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