Find the product. Assume all variable exponents represent whole numbers.(p - q)(p2 + pq + q2)
A. p3 - 2p2q - 2pq2 - q3
B. p3 - q3
C. p3 + 2p2q + 2pq2 - q3
D. p3 + q3
Answer: B
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Find the center of mass of a thin plate of constant density covering the given region.The region bounded by the parabola x = y2 and the line x = 9
A. 
= 9, 
= 0
B. 
= 0, 
= 
C. 
= 36, 
= 0
D. 
= 
, 
= 0
Use the problem-solving strategy to solve the problem and find the unknown number.A number plus the product of 3 and the difference of 8 and the number is equal to the product of 4 and the number, increased by 6.
A. 3 B. 8 C. 0 D. 6
Many states conduct lotteries; a typical lottery payoff ticket is shown here. Assume there are 20 numbers chosen from a set of 80 possible numbers. What is the expectation for a three-spot game? Assume that the ticket cost $1. 3 SPOT GAMEMATCHPRIZE32$50$5?
A. $0.50 B. - $0.50 C. $0.78 D. - $0.39 E. $0.39
Add or subtract as indicated.- 
+ 
A. - 
B. 
C. 
D. 