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3 years ago

5

The function y=x^4+bx^2+8x+1 has a horizontal tangent and a point of inflection for the same value of x. What must be the value

of b? ...?

1 answer:

Anni [7]3 years ago

5 0

so f ' (x) = 0 and f ' ' (x) = 0 for the same x . so f '(x) = f '' (x) f ' = 4x^3 + 2bx + 8 = f '' (x) = 12x^2 + 2b

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Please help its math

nataly862011 [7]

Let the length of the radius = r feet.

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The temperature was 102 F. Two hours later it was 3 lower .what was his temperature then

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Answer:

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Step-by-step explanation:

"Three lower" means it was the original temperature - 3, so if the original temperature was 102, we have the equation:

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Step-by-step explanation:

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The answer to your question is: letter C

Step-by-step explanation:

4x² + 5x - 6

Process

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