Events E and F are mutually exclusive and Pr(F) ? 0. Which of the following must be true?
A. E and F are independent.
B. Pr(E ? F) = Pr(E) ? Pr(F)
C. Pr(E ? F) = Pr(E) + Pr(F)
D. Pr(E|F) = Pr(E)
E. none of these
Answer: C
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Write the equation of the line using the information given about its graph.Slope - 
, y-intercept 3
A. y = 
x - 3
B. y = - 
x + 3
C. y = - 
x - 3
D. y = 
x + 3
If a problem begins with “There are 200 people at a dance . . .”, an approach to solving the problem may be
(a) Draw a Picture. (b) Guess and Test. (c) Solve a Simpler Problem. (d) Deductive reasoning. (e) None of these is a good approach.
Perform the indicated operation.(8a8)(7a4)
A. 1532 B. 56a12 C. 56a32 D. 1512
Solve.A dairy produces 
of milk each day. There are 
in a gallon. How many gallons of milk are produced each day?
A. 14,750 gal. B. 2,360,000 gal. C. 147,500 gal. D. 1,475,000 gal.