Solve the problem. Round your answer, if appropriate.The volume of a rectangular box with a square base remains constant at 900 cm3 as the area of the base increases at a rate of 2 
2/sec. Find the rate at which the height of the box is decreasing when each side of the base is 12 cm long. (Do not round your answer.)
A. 
cm/sec
B. 
cm/sec
C. 
cm/sec
D. 
cm/sec
Answer: B
Mathematics
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Solve the system by the elimination method.4x + 5y = 1512x + 15y = 45
A. ? B. {(6, 1)} C. {(x, y)| 4x + 5y = 15} D. {(0, 4)}
Mathematics
Add and, if possible, simplify.
+ 
A. 0
B. 
C. 
D. 
Mathematics
Simplify the expression. Write the answer with positive exponents only. Assume that all variables represent positive real numbers.
A. x3/8 B. x11/8 C. x3/88 D. x1/88
Mathematics
Find the equation of the line through the given pair of points in standard form using only integers.(4, -4) and (-1, 4)
A. 8x - 5y = 12 B. 8x + 5y = -12 C. 8x + 5y = 12 D. 8x + 5y = 17
Mathematics