Simplify. Assume that all variables represent positive real numbers.- 
A. 7
B. -49
C. 17
D. -7
Answer: D
Mathematics
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Using the horizontal-line test, determine whether the function is one-to-one.f(x) = x3 - 5x + 2
A. Yes B. No
Mathematics
Fill in the blank with one of the words or phrases listed below.
A combination of operations on variables and numbers is called a(n) 
.
A. algebraic expression B. numerical coefficient C. variable D. terms
Mathematics
Factor completely.3x3 + 3x2y - 60xy2
A. 3x(x + 4y)(x - 5y) B. (3x2 + 12xy)(x - 5y) C. Prime D. (x - 4y)(3x2 + 15xy) E. 3x(x - 4y)(x + 5y)
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Find all ? values in [0, 2?] that satisfy the equation. cot ? = 
A. 
, 
B. 
, 
C. 
, 
Mathematics