F(x)=x√81-x^2, for -9< x< 9 determine the intervals on which the function is increasing

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6

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66answer:

step-by-step explanation:

the correct answer option is d. la = πrs.

step-by-step explanation:

we know that for a right cone, the lateral surface area is given by:

lateral area of right cone =

here the value under the square root is equal to slant height so replacing this value by in the formula to get:

lateral area of right cone =

therefore, the correct answer option is d.

the correct answers are 1, 2, 4, and 5! i just got it right!