Find the domain of the rational function.R(x) = 
A. {x|x ? -9, 5}
B. {x|x ? - 45, 1}
C. {x|x ? 9, 5}
D. {x|x ? 9, -5}
Answer: A
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Use the two steps for solving a linear programming problem to solve the problem.Zach is planning to invest up to $45,000 in corporate and municipal bonds. The least he will invest in corporate bonds is $7000 and he does not want to invest more than $25,000 in corporate bonds. He also does not want to invest more than $32,387 in municipal bonds. The interest is 8.2% on corporate bonds and 6.2% on municipal bonds. This is simple interest for one year. What is the maximum income?
A. $23,290 B. $28,290 C. $5810 D. $48,290
The graph of the function y = f(x) is given. On the same axes, sketch the graph of f-1(x). Use a dashed line for the inverse function.
A. 
B. 
C. 
D. 
Subtract.-4 - (-9)
A. -13 B. -4 C. 5 D. -5
Express the function in terms of x.If f(u) = u5 and u = x3 + 8, then express 5u4 ? 3x2 in terms of x alone.
A. x2(15x3 + 8)4 B. 15(x5 + 8)4 C. (15x5 + 8)4 D. 15x2(x3 + 8)4