Solve the problem.A rock is propelled upward from the top of a building 60 feet tall at an initial velocity of 104 feet per second. The function that describes the height of the rocket in terms of time t is 
Determine the time at which the rock reaches its maximum height.
A. 2.6 sec
B. 6.5 sec
C. 5.2 sec
D. 3.25 sec
Answer: D
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Let U = {1, 2, 4, 5, a, b, c, d, e}. Find the complement of the set.A = {2, 4, b, d}
A. {1, 5, a, c, e} B. {1, 3, 5, a, c, e} C. {1, 2, 4, 5, a, b, c, d, e} D. {1, 5, a, e}
Solve the problem.Behemoth Back Packs, Inc. finds that the cost to make each of its backpacks is $25 and each backpack sells for $40. If the company's fixed costs for a month are $7,318, how many backpacks must the company sell in a month in order to make a profit?
A. at least 488 backpacks B. at least 146 backpacks C. at most 75 backpacks D. at least 113 backpacks
Solve the problem.Find the radian measure of the central angle ? which intercepts a 71.5 cm arc in a circle of radius 13 cm. Round to one decimal place, if necessary.
A. 6 radians B. 0.1 radians C. 5 radians D. 5.5 radians
Find the product.(7x + 11)2
A. 49x2 + 154x + 121 B. 49x2 + 121 C. 7x2 + 121 D. 7x2 + 154x + 121