Perform the indicated operation and simplify.
÷ 
A. 
B. 
C. x + 3
D. 
Answer: A
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Determine whether the given function is one-to-one. If it is one-to-one, find a formula for the inverse.f(x) = 
A. Not one-to-one
B. f-1(x) = (x + 1)2
C. f-1(x) = 
D. f-1(x) = x2 - 1, x ? 0
Solve the problem.The results of a school election for student president are shown in the following table. 
What is the probability that a randomly polled voter voted for Candidate C?
A. 0.6 B. 0.3 C. 0.5 D. 0.24
For the given functions f and g, find the requested function and state its domain. Write the domain in interval notation.f(x) = 9 - 7x; g(x) = -5x + 7;
Find f + g.
A. (f + g)(x) = -5x + 9; (-?, 
) ? (
, ?)
B. (f + g)(x) = 4x; (-?, ?)
C. (f + g)(x) = -2x + 16; (-?, 
? 
, ?)
D. (f + g)(x) = -12x + 16; (-?, ?)
Solve the linear programming problem.A candy company has 135 pounds of cashews and 180 pounds of peanuts which they combine into two different mixes. The deluxe mix has half cashews and half peanuts and sells for $6 per pound. The economy mix has one third cashews and two thirds peanuts and sells for $5.90 per pound. How many pounds of each mix should be prepared for maximum revenue?
A. 180 deluxe, 135 economy B. 90 deluxe, 45 economy C. 270 deluxe, 90 economy D. 135 deluxe, 0 economy