Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
A. $0.75
B. $2.00
C. -$3.00
D. $3.00
Answer: A
Mathematics
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A. 5 B. 7 C. 8 D. 9
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Use De Moivre's theorem to simplify the expression. Write the answer in the form a + bi.
4
A. 256i
B. 128 + 128i
C. 128
+ 128i
D. 128 + 128i
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Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. - 
B. - 
C. 
D. - 
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Solve the problem.Which of the two rates would yield the larger amount in 1 year: 9% compounded monthly or 9
% compounded annually?
A. 9% compounded monthly
B. 9
% compounded annually
C. They will yield the same amount.
Mathematics