Find the expected value.Suppose that 1,000 tickets are sold for a raffle that has the following prizes: one $300 prize, two $100 prizes, and one hundred $1 prizes. What is expected value of a ticket?
A. $300
B. $0.60
C. $1
D. $100
Answer: B
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Solve the problem.A guitar manufacturer spent $93 million on the production of acoustic and electric guitars in 1999. If the amount the company spent producing acoustic guitars was $57 million more than it spent on producing electric guitars, how much in fact did the company spend producing electric guitars?
A. $18 million B. $93 million C. $46.5 million D. $75 million
Solve.Let f(x) = 9x + 5 and g(x) = 6x2 + 6. Find f(8) + g(8) .
A. 461 B. 462 C. 467 D. 456
Solve the inequality analytically. Support the answer graphically. Give exact values for endpoints.x2 + x - 3 ? 0
A. (
, 
)
B. (-?, 
] ? [
, ?)
C. (-?, ?)
D. ?
Solve the problem.Frank can type a report in 7 hours. James takes 3 hours to type it. How long will it take the two of them typing together?
A. 5
hr
B. 2
hr
C. 
hr
D. 
hr