Solve the problem.One pump can drain a pool in 7 minutes. When a second pump is also used, the pool only takes 3 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump in use?
A. 2
min
B. 
min
C. 5
min
D. 17 min
Answer: C
Mathematics
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Solve. Use the principle of square roots.x2+ 10x + 25 = 28
A. -5 + 2
, -5 - 2
B. 2
, -2
C. 2
- 5, 2
+ 5
D. -5 + 2
, -5 - 2
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Sketch the given exponential curve.y = 3t
A. 
B. 
C. 
D. 
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Multiply.(-4x - 8)(2x - 10)
A. -2x2 + 24x + 24 B. -8x2 + 24x + 24 C. -2x2 + 24x + 80 D. -8x2 + 24x + 80
Mathematics
Find the inverse of the function.f(x) = 
+ 1
A. f-1(x) = (x - 1)3
B. f-1(x) = 
- 1
C. f-1(x) = x3 - 1
D. f-1(x) = (x + 1)3
Mathematics