Simplify.
A. 0
B. 1
C. -1
D. -16
Answer: C
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Solve the problem.Calculate the volume of the parallelepiped with edges a = 
, b = 
, and c = 
.
A. 28 B. 34 C. 56 D. 25
Solve the problem.A 100 gal tank is half full of distilled water. At time = 0, a solution containing 2 lb/gal of concentrate enters the tank at the rate of 4 gal/min, and the well-stirred mixture is withdrawn at the rate of 
When the tank is full, how many pounds of concentrate will it contain?
A. 175 pounds B. 150 pounds C. 200 pounds D. 187.5 pounds
The following question refers to a country with six states. There are 250 seats in the legislature, and the populations of the states are given in the table below.
Find each state's apportionment under Adams's method.
A. State A: 29; State B: 136; State C: 11; State D: 42; State E: 13; State F: 19 B. State A: 29; State B: 133; State C: 12; State D: 42; State E: 14; State F: 20 C. State A: 29; State B: 134; State C: 11; State D: 42; State E: 14; State F: 20 D. State A: 29; State B: 135; State C: 11; State D: 41; State E: 14; State F: 20 E. none of these
If AB ? BC and PQ ? QR, then
(a)