Divide.
A. -2x2 - 2x - 5 + 
B. x2 - 5 + 
C. -2x2 - 2x - 5 + 
D. -2x2 - 2x - 5
Answer: C
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Solve the problem.A school holds a fundraising event. Attendees are charged $10 for dinner, plus 50¢ for each raffle ticket. Create a function f(x) for the amount that a person pays if she eats dinner and purchases x raffle tickets. Use the function f(x) to determine how much a person pays if she eats dinner and plays 25 games.
A. f(x) = 10x + 0.5; $250.50 B. f(x) = 0.5x + 10; $22.50 C. f(x) = 50x + 10; $1260.00 D. f(x) = 0.5x; $12.50
Solve the problem.How long will it take a sample of radioactive substance to decay to half of its original amount, if it decays according to the function A(t) = 700e-0.192t, where t is the time in years? Round to the nearest hundredth year.
A. 34.12 years B. 3.61 years C. 37.73 years D. 134.40 years
Subtract 
and write the result in simplest form.
A. 
B. 
C. 
D. 
E. 
Answer the question regarding the probability mass function described. A spinner marked off in five equal-sized regions, numbered 1, 2, 3, 4, and 5, is spun twice. Let the random variable X be the sum of the numbers of the regions where the pointer stops, and define a probability mass function 
(a) Find f(3).(b) Find ?.
A. (a) f(3) = P(X = 3) = 
(b) ? = 3
B. (a) f(3) = P(X = 3) = 
(b) ? = 3
C. (a) f(3) = P(X = 3) = 
(b) ? = 6
D. (a) f(3) = P(X = 3) = 
(b) ? = 6