Multiply and simplify.-6z ? 
A. 0
B. 36z
C. 1
D. -1
Answer: C
Mathematics
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Solve the problem.If f(x) = ln x, find f(e16 ln 9).
A. 9 ln 16 B. ln 9 C. 16 ln 9 D. e9
Mathematics
Solve the problem.A chemist needs 120 milliliters of a 39% solution but has only 23% and 71% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 40 mL of 23%; 80 mL of 71% B. 30 mL of 23%; 90 mL of 71% C. 80 mL of 23%; 40 mL of 71% D. 90 mL of 23%; 30 mL of 71%
Mathematics
Solve the equation.
= 8
A. 
B. {-8, 8}
C. 
D. no real solution
Mathematics
Factor the trinomial by grouping.15x2 - 16xy + 4y2
A. (15x + 2y)(x + 2y) B. (3x + 2y)(5x + 2y) C. prime D. (3x - 2y)(5x - 2y)
Mathematics