Factor completely. If the polynomial is prime, state this.x4 + 5x2 + 2x3 + 10x
A. Prime
B. (x2 - 5)(x2 + 2x)
C. x(x + 2)(x2 + 5)
D. x(x2 + 5)(x - 2)
Answer: C
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Rationalize the denominator. Assume that all variables represent positive real numbers and that the denominator is not zero.
A. 
B. 
C. 
D. 
Solve.A projectile is thrown upward so that its distance, in feet, above the ground after t seconds is 
What is its maximum height?
A. 16,800 ft B. 4400 ft C. 189,640 ft D. 4719 ft
Solve the problem.A grasshopper is perched on a reed 6 inches above the ground. It hops off the reed and lands on the ground about 6.6 inches away. During its hop, its height is given by the equation 
, where x is the distance in inches from the base of the reed, and h is in inches. How far was the grasshopper from the base of the reed when it was 4.75 inches above the ground? Round to the nearest tenth.
A. 0.9 inches B. 5.0 inches C. 0.6 inches D. 6.6 inches
Solve the equation by factoring.x2 = x + 72
A. {8, 9} B. {1, 72} C. {-8, 9} D. {-8, -9}