Find the volume of a sphere with a radius of 3 inches.
?

A.


B.


C.


D.


E.


Answer: E

Mathematics

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Find all the second order partial derivatives of the given function.f(x, y) = cos xy2

A. fxx(x, y) = y2 sin xy2; fyy(x, y) = 2[2y2 cos (xy2) - sin (xy2)] ; fyx(x, y) = fxy(x, y) = 2y[y2 cos (xy2) - sin (xy2)]
B. fxx(x, y) = -y4 cos xy2; fyy(x, y) = - 2x[2xy2 cos (xy2) + sin (xy2)]; fyx(x, y) = fxy(x, y) = - 2y[xy2 cos (xy2) + sin (xy2)];
C. fxx(x, y) = - y2 sin xy2; fyy(x, y) = 2[ sin (xy2)- 2y2 cos (xy2)] ; fyx(x, y) = fxy(x, y) = 2y [sin (xy2)-y2 cos (xy2)]
D. fxx(x, y) = - y2 sin xy2; fyy(x, y) = 2y; fyx(x, y) = fxy(x, y) = 2

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Mathematics

Solve the problem.To solve the rational inequality  ? 2, you can first write the inequality with 0 on one side and the other side expressed as a single fraction. What value or values of x make the numerator of that fraction equal to 0?

A. {3} B. {-2} C. {2, 3} D. {2}

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Mathematics

Solve the application problem.Find three consecutive integers such that the square of the sum of the smaller two is 297 more than the square of the largest.

A. 10, 11, 12 B. 8, 10, 12 C. -10, -9, -8 D. 10, 11, 12, or -10, -9, -8

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Mathematics

Evaluate the expression for the given replacement values. Write the answer in simplest form. x2(y - z) for x = , y = , z = 

A. - 
B.
C.
D.

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Mathematics