Solve the problem.If the radius of a sphere is doubled, by what factor will the volume change?
A. 2
B. 4
C. 6
D. 8
Answer: D
Mathematics
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Use a calculator to find the acute angle between the planes to the nearest thousandth of a radian.4x - 7y + 10z = -4 and -2x - 7y + 9z = 5
A. 1.078 rad B. 0.493 rad C. 1.524 rad D. 0.152 rad
Mathematics
Find the derivative.y = x3 cos 4x2
A. 8x4 sin (4x2) + 3x2 cos 4x2 B. -8x4 sin (4x2) C. sin (4x2) + 3x2 cos 4x2 D. -8x4 sin (4x2) + 3x2 cos 4x2
Mathematics
Evaluate the expression.3-2
A. -9
B. 9
C. 
D. 
Mathematics
Find the mean for the list of numbers.Scores on a math test: 75%, 52%, 75%, 100%, 52%Round answer to the nearest whole number if necessary.
A. 100% B. 70% C. 71% D. 52%
Mathematics