Factor completely.-7n3 + 7n2 + 14n
A. -7n(n - 2)(n + 1)
B. 7n(n + 2)(n - 1)
C. 7n(n - 2)(n + 1)
D. -7n(n + 2)(n - 1)
Answer: A
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Solve the problem.A small frictionless cart, attached to the wall by a spring, is pulled 10 cm back from its rest position and released at time t = 0 to roll back and forth for 4 sec. Its position at time t is 
. What is the cart's maximum speed? When is the cart moving that fast? What is the magnitude of of the acceleration then?
A. 10? ? 31.42 cm/sec; t = 0.5 sec, 1.5 sec, 2.5 sec, 3.5 sec; acceleration is 0 cm/sec2 B. ? ? 3.14 cm/sec; t = 0.5 sec, 1.5 sec, 2.5 sec, 3.5 sec; acceleration is 0 cm/sec2 C. 10? ? 31.42 cm/sec; t = 0.5 sec, 2.5 sec; acceleration is 1 cm/sec2 D. 10? ? 31.42 cm/sec; t = 0 sec, 1 sec, 2 sec, 3 sec; acceleration is 0 cm/sec2
State which circular functions are undefined for the given value of s.s = 
A. tangent, secant B. cotangent, cosecant C. tangent, cosecant D. cotangent, secant
Find the volume of the solid generated by revolving the region about the y-axis.The region in the first quadrant bounded on the left by y = 
, on the right by the line 
, and above by the line y = 2
A. 54? B. 18? C. 36? D. 12?
Insert < or > to make the statement true.8 _____ 0
A. > B. <