Solve the problem.A classical music concert is to consist of 5 cello pieces, 3 choral works, and 3 pieces for piano. In how many ways can the program be arranged if a piano piece must come first?
A. 120,960
B. 3,628,800
C. 39,916,800
D. 10,886,400
Answer: D
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Solve the problem.The value of a retirement savings account with an annual contribution of $1800 (contributions made at the end of each year, including the last year), and an APR of 5.4% after 40 years is $239,880.81.Find the value of this retirement savings account after 45 years. Round your answer to the nearest cent.
A. $341,248.61 B. $303,849.63 C. $312,992.88 D. $331,414.49 E. $322,057.51
Solve the problem.Suppose that an honest coin is tossed ten times. What is the probability that it will come up heads at least once?
A. 
B. 
C. 
D. 
E. none of these
Express the vector as a product of its length and direction.-9i + 9j + 9k
A. 9( -i + j + k)
B. 
C. 9
D. 9
Perform the addition or subtraction.(4x2 + 7x + 7) - (2x2 - 1)
A. 6x2 + 7x + 6 B. 2x2 + 7x + 8 C. 2x2 + 8x + 7 D. 6x2 + 8x + 7