Solve the problem.If money can be invested at 9% compounded quarterly, which is larger -- $1000 now or the present value of $1210 left at 9% interest for 4 years?
A. Present value of $1210 left for 4 years
B. $1000 now
Answer: B
Mathematics
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Evaluate.m ? n - 9 for m = -3 and n = 8
A. 3 B. -15 C. 15 D. -33
Mathematics
Solve the equation by completing the square. 2t2 - 2t + 9 = 0
A. 
B. 
C. 
D. ?
Mathematics
Write the decimal as a fraction or mixed number in lowest terms.77.379
A. 77
B. 15
C. 
D. 
Mathematics
Solve the problem.A weight attached to a spring is pulled down 9 inches below the equilibrium position. Assuming that the period of the system is 
second, determine a trigonometric model that gives the position of the weight at time t seconds.
A. y = 9cos 
t
B. y = 9cos 10?t
C. y = -9cos 10?t
D. y = -9cos 5?t
Mathematics