Rewrite the problem as a multiplication problem.52 ÷ 4 = 13
A. 52 = 13 ? 4
B. 13 ? 52 = 4
C. 4 = 52 ÷ 13
D. 52 ? 4 = 13
Answer: A
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Solve.For f(x) = (x + 5)(x - 6)(x - 9), find all x-values for which f(x) > 0.
A. (-?, -5) ? (6, 9) or {x|x < -5 or 6 < x < 9} B. (-5, 6) ? (9, ?) or {x|-5 < x < 6 or x > 9} C. (-?, 6) or {x| x < 6} D. (9, ?) or {x|x > 9}
Find the derivative of the function.y = x4cos x - 14x sin x - 14 cos x
A. -x4 sin x + 4x3 cos x - 14x cos x - 28 sin x B. -x4 sin x + 4x3 cos x - 14x cos x C. -4x3 sin x - 14 cos x + 14 sin x D. x4 sin x - 4x3 cos x + 14x cos x
Identify the numerator and the denominator of the fraction.
A. numerator: 2ya; denominator: 3
B. numerator: 2y; denominator: 3a
C. numerator: 3a; denominator 2y
D. numerator: 
; denominator: 3a
Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 