The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = 
B. f-1(x) = -4x
C. f-1(x) = 
D. f-1(x) = 4x
Answer: C
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Solve the number problem by finding the value of the unknown number.The difference of a number and 3 is 39 less the number.
A. -18 B. 21 C. -21 D. 18
Solve.One pump can drain a pool in 12 minutes. When a second pump is also used, the pool only takes 11 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump in use?
A. 131 minutes
B. 132 minutes
C. 5
minutes
D. 
minutes
Find the derivative of the function.y = 5 sin (5x - 5)
A. 
= 5 cos (5x - 5)
B. 
= -5 cos (5x - 5)
C. 
= 25 cos (5x - 5)
D. 
= 5 sin (5x - 5)
Determine where the graph of the function is increasing, decreasing, concave up, concave down. Then sketch the graph.G(x) = 2x3 - 9x2 + 12x
A. 
B. 
C. 
D. 