Convert the units using unit fractions.360 min = 
hr
A. 6
B. 144
C. 3
D. 15
Answer: A
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Factor completely. If the polynomial is prime, state so.81x2 - 144x + 64
A. (9x - 8)2 B. (9x + 8)2 C. (81x + 1)(x + 64) D. (9x - 8)(9x + 8)
Use a graphing calculator to determine which expression completes the identity.The expression 
is to be the left hand side of an equation that is an identity. Which one of the following four expressions can be used as the right hand side of the equation to complete the identity?
A. csc2x B. sec2x C. -cos2x D. tan2x
Factor.(x + 5)3 - (x - 5)3
A. 10(3x2 + 25) B. (2x + 10)(x2 + 25) C. 5(x2 + 75) D. (x - 5)(x2 + 5x + 25)
Solve the problem.How much money needs to be invested now to get $2000 after 4 years at 8% compounded quarterly? Express your answer to the nearest dollar.
A. $2746 B. $1848 C. $584 D. $1457