Solve the problem.A ball is thrown vertically upward with an initial velocity of 96 feet per second. The distance in feet of the ball from the ground after t seconds is 
For what interval of time is the ball more than 80 above the ground?
A. {x ? 2.5 sec < x < 3.5 sec}
B. {x ? 1 sec < x < 5 sec}
C. {x ? 4 sec < x < 8 sec}
D. {x ? 0.5 sec < x < 5.5 sec}
Answer: B
Mathematics
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A. 16 B. 50 C. -16 D. -50
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A. 16,281 B. 17,381 C. 16,371 D. 17,271
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a) For what value of c is f a probability density function? b) For that value of c, find P (–1 < X < 1).
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Find the elasticity of the demand function as a function of p.x = D(p) = 
A. E(p) = 
B. E(p) = 
C. E(p) = 
D. E(p) = 
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