Solve the problem.Find an expression that represents the volume of the figure.
A. 12x27y21
B. 36x8y5
C. 12x15y40
D. 12x9y7
Answer: D
Mathematics
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Solve the problem.A conical tank is resting on its apex. The height of the tank is 
, and the radius of its top is 
. The tank is full of gasoline weighing
How much work will it take to pump the gasoline to the top? Give your answer to the nearest ft ? lb.
A. 412,240 ft ? lb B. 137,413 ft ? lb C. 11,130,474 ft ? lb D. 15,268 ft ? lb
Mathematics
Rationalize the numerator of the fraction.
A. 
B. 
C. 
D. 
Mathematics
Add.14479
A. 908 B. 1619 C. 1038 D. 808
Mathematics
Simplify the radical. Assume that all variables represent positive real numbers.
A. x2
B. x2
C. x
D. x2
Mathematics