Find the least common multiple of the denominators of the fractions.
, 
A. 10,920
B. 32,760
C. 16,380
D. 2520
Answer: B
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Solve the problem.Let D be the smaller cap cut from a solid ball of radius 6 units by a plane 2 units from the center of the sphere. Set up the triple integral for the volume of D in spherical coordinates.
A. 
B. 
C. 
D. 
Solve.An earthquake was recorded with an intensity which was 
times more powerful than a reference level earthquake, or 
What is the magnitude of this earthquake on the Richter scale (rounded to the nearest tenth)? The magnitude of an earthquake of intensity I is defined as 
, where Io is a minimum level for comparison.
A. 3.9 B. 4.9 C. 0.5 D. 11.3
Multiply.(8x + 9y)(8x- 9y)
A. 64x2 + 81y2 B. 64x2 - 72xy + 81y2 C. 64x2 - 81y2 D. 64x2 - 72xy - 81y2
Factor completely.2x3 + 6x2y - 20xy2 = 2x( 
)( 
)
A. x + 4y, x - 5y B. x + 2y, x - 5y C. x + 4xy, x - 5y D. x - 2y, x + 5y