Factor the trinomial, if possible.4x3 + 8x2 - 60x
A. 4x(x - 3)(x + 5)
B. (4x2 + 12x)(x - 5)
C. 4x(x + 3)(x - 5)
D. (x - 3)(4x2 + 20)
Answer: A
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Write a short statement that expresses a possible function between the given variables.(slope of hill, speed of bicycle)
A. If you are coasting down a hill on a bicycle, the narrower the hill, the faster you will coast. B. If you are coasting down a hill on a bicycle, the wider the hill, the slower you will coast. C. If you are coasting down a hill on a bicycle, the steeper the hill, the slower you will coast. D. If you are coasting down a hill on a bicycle, the steeper the hill, the faster you will coast.
Perform the indicated operations.
2
A. x2 - 6xy2 + 9y4 B. x2 + 6xy2 + 9y4 C. x2 - 6xy + 9y2 D. x2 + 9y4
Use Cramer's rule to determine if the system is inconsistent system or contains dependent equations. 4x - y + 2z = 1 3x + 5y - z = 0-6x - 10y + 2z = 0
A. system contains dependent equations B. system is inconsistent
For the demand function given, find the elasticity at the given price and state whether the demand is elastic, inelastic, or whether it has unit elasticity.q = D(x) = 
; x = 3
A. - 4; inelastic
B. 
; inelastic
C. 
; inelastic
D. 
; elastic