Determine if the set is the empty set.{x|x is a number less than 4 or greater than 8}
A. Yes, it is the empty set.
B. No, it is not the empty set.
Answer: B
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Find the length of the curve.x = 
(t2 + 2) 3/2, y = 2t, 0 ? t ? 1
A. 8
B. 
C. 
D. 
Determine whether or not the graph is a graph of a function of x.
A. Function B. Not a function
If a and b are rational numbers, with a ? 0 and b ? 0, and if m and n are integers, determine if the following is true or false. Justify your answer.(a - b)m = am - bm
A. True; (2 - 1)1 = 21 - 11 B. False; (2 - 1)2 ? 22 - 12
Solve the problem.If a rock is thrown vertically upward from the top of a building 112 feet high with an initial velocity of 96 feet per second, the height, h, above ground level after t seconds is given by h = -16t2 + 96t + 112, where h is in feet and t is in seconds. How many seconds will it take the rock to reach its maximum height?
A. 3 sec B. 6 sec C. 7 sec D. 2 sec