Perform the indicated operation and express in lowest terms. 
+ 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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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a solution containing 2 lb/gal of concentrate enters the tank at the rate of 4 gal/min, and the well-stirred mixture is withdrawn at the rate of 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. 187.5 pounds B. 175 pounds C. 150 pounds D. 200 pounds
Mathematics
Find the area of a triangular window with the given base and height.Base = 7.4 ft, height = 5 ft
A. 12.4 sq ft B. 37 sq ft C. 6.2 sq ft D. 18.5 sq ft
Mathematics
Factor by grouping.x3 - 7x2 - 5x + 35
A. (x3 - 5)(x + 7) B. (x2 - 5)(x - 7) C. (x2 + 5)(x - 7) D. (x2 - 7)(x - 5)
Mathematics
Perform the indicated operation. Simplify, if possible.
+ 
A. 
B. 
C. 
D. 
Mathematics