Solve the problem.The function V(r) = 3?r2 describes the volume of a right circular cylinder of height 3 feet and radius r feet. Find the instantaneous rate of change of the volume with respect to the radius when r = 7. Leave answer in terms of 

A. 21? cubic feet per feet
B. 14? cubic feet per feet
C. 42? cubic feet per feet
D. 6? cubic feet per feet


Answer: C

Mathematics

You might also like to view...

Test the vector field F to determine if it is conservative.F = i +  j - k

A. Not conservative B. Conservative

Mathematics

Find the length of the third side of the right triangle. Where appropriate, give both an exact answer and an approximation to three decimal places.

A. 20 B. 24 C. 25 D. 18

Mathematics

Find the requested polynomial. Find a polynomial of degree 5 with -3 as a zero of multiplicity 3, 0 as a zero of multiplicity 1, and 4 as a zero of multiplicity 1.

A. f(x) = x5 + 5x4 - 9x3 - 81x2 - 108x B. f(x) = x5 + 7x4 - 9x3 - 81x2 + 108x C. f(x) = x5 - 7x4 - 9x3 + 81x2 - 108x D. f(x) = x5 + 5x3 - 9x2 - 81x - 108

Mathematics

Express the repeating decimal as a fraction in lowest terms.0. =   +  +  +   ...

A.
B.
C.
D.

Mathematics