Simplify the expression. Assume that all variables are positive when they appear.
? 
A. 8
B. -2
C. -15
D. 15
Answer: D
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Solve the problem.Let D be the smaller cap cut from a solid ball of radius 10 units by a plane 4 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.When the temperature stays the same, the volume of a gas is inversely proportional to the pressure of the gas. If a balloon is filled with 160 cubic inches of a gas at a pressure of 14 pounds per square inch, find the new pressure of the gas if the volume is decreased to 32 cubic inches.
A. 70 pounds per square inch
B. 56 pounds per square inch
C. 
pounds per square inch
D. 65 pounds per square inch
Add the numbers.
A. 349 B. 1169 C. 360 D. 359
Determine which factoring technique is appropriate for the given polynomial.9x2y3 + 18xy2 - 27 xy
A. factoring by grouping B. sum of squares C. difference of squares D. factor out GCF