Solve the problem.The height h of a ball thrown is given by 
, where x is the horizontal distance traveled and both measurements are in feet. At what horizontal distances will the height of the ball be more than 
(Round distances to the nearest tenth of a foot, if necessary.)
A. 5.9 ft < x < 25 ft
B. 0 ft < x < 19.1 ft
C. 0 ft < x < 5.9 ft or 19.1 ft < x < 25 ft
D. 5.9 ft < x < 19.1 ft
Answer: D
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Solve the inequality.s2 - 2s - 8 < 0
A. (-2, 4) B. (-?, -2) C. (-?, -2) or (4, ?) D. (4, ?)
Find the equation of a circle satisfying the given conditions.Center: (7, -7); radius: 10
A. (x - 7)2 + (y + 7)2 = 100 B. (x - 7)2 + (y + 7)2 = 10 C. (x + 7)2 + (y - 7)2 = 100 D. (x + 7)2 + (y - 7)2 = 10
Write the radical as a rational expression. Assume that variables are nonnegative real numbers.
A. n2
B. 
C. 
D. n1/2
Use the maximum/minimum finder on a graphing calculator to determine the approximate location of all local extrema.f(x) = 0.1x3 -15x2 + 72x + 1
A. Approximate local maximum at -97.539; approximate local minimum at -2.461 B. Approximate local maximum at 2.461; approximate local minimum at 97.539 C. Approximate local minimum at 2.461; approximate local maximum at 97.539 D. Approximate local minimum at -97.539; approximate local maximum at -2.461