Find the product, and write in lowest terms, if necessary.- 
? 
A. 1
B. - 
C. 
D. - 
Answer: B
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Identify the coefficient, variable(s), and degree.-8y13
A. 13, y, -8 B. 8, y, 13 C. -8, y, 13 D. 13, y, 8
One period of the given function is defined below. Determine whether the function is even, odd, or neither.f(x) = -x sin 3x cos 5x-5 ? x < 5
A. Neither B. Even C. Odd
Solve the problem.The function f models the population of Country X from 1991 to 1998. The graphs of f and the horizontal line y = 805 are shown in the figure. Use the graphs to determine the x-values that satisfy (i) the inequality 
and (ii) 
Express your answers symbolically. 
A. {x|x = 1994}; {x|x ? 1994} B. {x|x = 1994}; {x|x > 1994} C. {x|x ? 1994}; {x|x > 1994} D. {x|x > 1994}; {x|x ? 1994}
Evaluate.-10x2 for x = -6
A. 360 B. -360 C. -120 D. 120