Solve the problem.A ball is thrown vertically upward with an initial velocity of 192 feet per second. The distance in feet of the ball from the ground after t seconds is 
For what intervals of time is the ball less than 512 above the ground (after it is tossed until it returns to the ground)?
A. {x ? 4 sec < x < 8 sec}
B. {x ? 0 sec < x < 4 sec and 8 sec > x > 12 sec}
C. {x ? 0 sec < x < 3.5 sec and 8.5 sec > x > 12 sec}
D. {x ? 0 sec < x < 5.5 sec and 6.5 sec > x > 12 sec}
Answer: B
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Express the relationship between a small change in x and the corresponding change in y in the form 
.y = 4 cot 
A. dy = -4x3 csc 
dx
B. dy = -4x4 csc2 
dx
C. dy = 4x3 csc2 
dx
D. dy = -4x3 csc2 
dx
In order to determine the effects of a new pill that is supposed to reduce hair loss, a researcher conducts a study. Five hundred volunteer subjects (300 men and 200 women) all of which suffer some degree of hair loss are selected to participate in the study. The researcher gives the women the real pill and the men a sugar pill, but only the researcher knows this.In the experiment, which is the placebo group?
A. the 200 women B. the 300 men C. the subjects that responded to the treatment D. There is no placebo group. E. none of these
Simplify.
A. 
B. 
C. 
D. None of these
Provide an appropriate response.Evaluate: 
A. 
B. 
C. 
D. 2
E. 