Factor.500x3 + 4y3
A. 4(5x + y)(25x2 - 5xy + y2)
B. (5x - 4y)(100x2 + 5y + y2)
C. 4(5x - y)(25x2 + 5xy + y2)
D. 4(5x - y)(25x2 + y2)
Answer: A
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Without graphing the function, determine its amplitude or period as requested.y = -3 sin 2xFind the amplitude.
A. 
B. 3
C. 
D. 
Determine if the graph is symmetric about the x-axis, the y-axis, or the origin.r = 
A. x-axis only B. x-axis, y-axis, origin C. y-axis only D. No symmetry
Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 5 - 2
B. -5 - 2
C. 2
- 5
D. 5 + 2
Solve.A science student watching a group of ants moving along a straight line determines that their position x along the line as a function of time t is given by 
Give an equivalent expression for x(t) by factoring out a common factor.
A. t(t2 + 2t + 30) B. t(t2 + 2t - 30) C. t(t3 + 2t2 + 30t) D. t(t3 + 2t2 - 15t + 45)