Solve the problem.A toy rocket is launched straight upward with an initial velocity of 160 feet per second from a 2-foot high platform. The height h, in feet, of the rocket above ground t sec after it is launched is modeled by the function h(t) = -16t2 + 160t + 2. When will the rocket reach its maximum height? What is that height?
A. 402 ft in 5 sec
B. 1602 ft in 10 sec
C. 27 ft in 5 sec
D. 102 ft in 10 sec
Answer: A
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Arrange the fractions in ascending order. Or, if the fractions are equivalent, answer "Equivalent".
, 
, 
A. 
, 
, 
B. 
, 
, 
C. 
, 
, 
Shown here are graphs of y1 and y2. The point whose coordinates are given at the bottom of the screen lies on the graph of y1. Use this graph, and not your own calculator, to find the value of y2 for the same value of x shown.
A. 15.119053 B. -16 C. -15.119053 D. 0.4199736
Write the described ratio in fractional notation in lowest terms.Find the ratio of the longest side to the perimeter of the right triangle. 
A. 
B. 
C. 
D. 
Solve the problem.In economics, functions that involve revenue, cost and profit are used. Suppose R(x) and C(x) denote the total revenue and the total cost, respectively, of producing a new high-tech widget. The difference 
represents the total profit for producing x widgets. Given R(x) = 60x - 0.4 x2 and 
find the equation for P(x).
A. P(x) = -0.4 x2 + 57x - 13 B. P(x) = -0.4 x2 + 63x + 13 C. P(x) = 60x - 0.4 x2 D. P(x) = 3x + 13