Solve the problem.A storage tank used to hold sand is leaking. The sand forms a conical pile whose height is twice the radius of the base. The radius of the pile increases at the rate of 3 inches per minute. Find the rate of change of volume when the radius is 4 inches.
A. 96? in.3/min
B. 24? in.3/min
C. 48? in.3/min
D. 192? in.3/min
Answer: A
Mathematics
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Use two equations in two variables to find the following integers.Twice one integer plus another integer is 19. The first integer plus 3 times the second is 32.
A. 3, 7 B. 5, 9 C. 6, 9 D. 6, 10 E. 3, 10
Mathematics
Find 
.
?
?
A. 
?
B. 
?
C. 
?
D. 
?
E. 
?
Mathematics
Rationalize the denominator.
A. 11
B. 
C. 7
D. 
Mathematics
Simplify the expression. Use the distributive property to remove any parentheses.9(3n + 7)
A. 12n + 16 B. 90n C. 27n + 63 D. 27n + 7
Mathematics