Solve the problem. Round your answer, if appropriate.Water is being drained from a container which has the shape of an inverted right circular cone. The container has a radius of 4.00 inches at the top and a height of 5.00 inches. At the instant when the water in the container is 3.00 inches deep, the surface level is falling at a rate of 0.7 in./sec. Find the rate at which water is being drained from the container.
A. 12.1 in.3/s
B. 12.7 in.3/s
C. 12.3 in.3s
D. 14.8 in.3/s
Answer: B
Mathematics
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Solve the equation.
= 
A. {0, 4} B. {-2, -4} C. {0, 16} D. ?
Mathematics
Solve the problem.The gross national product for the United States was 
. Round this amount to the nearest hundred-billion.
A. $52,700,000,000,000 B. $52,690,000,000,000 C. $52,685,000,000,000 D. $53,000,000,000,000
Mathematics
Simplify.
A. 
B. 
C. 10x(x + 7)
D. 
Mathematics
Solve and simplify.
+ y = 
A. y = 1
B. y = 
C. y = 
D. y = 
Mathematics