Find the inverse of the one-to-one function.f(x) = 
A. f-1(x) = 
+ 
B. f-1(x) = 
C. f-1(x) = - 
- 
D. f-1(x) = 
+ 
Answer: D
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Evaluate the improper integral.
A. 28 B. 168 C. 24 D. 252
Provide an appropriate response.
A street light pole is 45 feet above ground level. A guy wire must be attached to the pole 2 feet from the top to give it support. If the guy wire makes a 25° angle with the ground, how long must the guy wire be? Disregard the length needed for attachment of the guy wire. 
A. 93 ft B. 39 ft C. 102 ft D. 48 ft
Solve the problem. Round rates to the nearest tenth of a percent and dollar amounts to the nearest cent.What-A-Pane Inc. sells windows for $106.81 each after a markup of $34.69. Find (a) the cost of a window, (b) the markup as a percent of cost, and (c) the markup as a percent of selling price.
A. (a) $72.12 (b) 32.5% (c) 48.1% B. (a) $72.12 (b) 48.1% (c) 32.5% C. (a) $141.50 (b) 24.5% (c) 75.5% D. (a) $141.50 (b) 75.5% (c) 48.1%
Solve the formula for the specified variable.I = 
for n
A. n = 
B. n = 
C. n = 
D. n = IR(Ir - E)