Find the following.Find -(-x) when x is 42.
A. 42
B. 0
C. -42
D. 
Answer: A
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State the period of the function and graph.sin 
A. Period 2?
B. Period 2?
C. Period 2?
D. Period 2?
Use the preference table to answer the question.The Mathematics Department is holding an election for department chair. Each member ranks the candidates from first to third. The preference table below shows the results of the ballots with candidates Clark (C), Jones (J), and Smith (S). 
If the Borda count method is used to determine the winner and Clark drops out, is the independence-of-irrelevant-alternatives criterion satisfied?
A. Yes B. No
Solve the problem.Let f(x) be the function represented by the dashed line and g(x) be the function represented by the solid line. Solve the equation f(x) < g(x).
A. x > 3 B. x > -3 C. x < 3 D. x < -3
Graph the polynomial function. f(x) = 2x2 - x3
A. 
B. 
C. 
D. 