Solve the problem.The total revenue from the sale of x stereos is given by R(x) = 1000(1 - 
)2. Find the average revenue from the sale of x stereos.
A. 
2
B. 500x
2
C. 1000x
2
D. 
2
Answer: D
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Identify equilibrium values and determine which are stable and which are unstable.
= y2 - 3y
A. y = 3 is a stable equilibrium value and y = 0 is an unstable equilibrium. B. y = 0 is a stable equilibrium value and y = 3 is an unstable equilibrium. C. y = 0 and y = 3 are unstable equilibrium values. D. There are no equilibrium values.
Decide whether or not the ordered pair is a solution of the system.(3, -2)4x = -14 - y3x = -17 - 4y
A. No B. Yes
Find the x- and y-intercepts of the graph of the given equation, if they exist. Then graph the equation.x = -5
A. x: -5; y: none
B. x: -5; y: none
C. x: none; y: -5
D. x: none; y: -5
Solve the problem. Round your answer to the nearest tenth, when appropriate.A rock falls from a tower that is 272 feet high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground 
A. 4.1 sec B. 4624 sec C. 16 sec D. 16.5 sec