Solve the quadratic inequality symbolically. Write your answer in interval notation.x2 + x - 9 ? 0
A. 
? 
B. 
? 
C. 
? 
D. 
, 
Answer: A
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Solve the problem that involves probabilities with dependent events. An ice chest contains 4 cans of apple juice, 6 cans of grape juice, 5 cans of orange juice, and 2 cans of pineapple juice. Suppose that you reach into the container and randomly select three cans in succession. Find the probability of selecting no grape juice.
A. 
B. 
C. 
D. 
Use a graphing utility to graph the function over the indicated interval and approximate any local maxima and local minima. Determine where the function is increasing and where it is decreasing. If necessary, round answers to two decimal places.f(x) = x3 - 3x + 1, (-2, 2)
A. local maximum at (1, -1) local minimum at (-1, 3) increasing on (-2, -1) and (1, 2) decreasing on (-1, 1) B. local maximum at (-1, 3) local minimum at (1, -1) increasing on (-2, -1) and (1, 2) decreasing on (-1, 1) C. local maximum at (1, -1) local minimum at (-1, 3) increasing on (-2, -1) decreasing on (-1, 1) D. local maximum at (-1, 3) local minimum at (1, -1) increasing on (-1, 1) decreasing on (-2, -1) and (1, 2)
Discuss the equation and graph it.r = 
A. hyperbola, directrix perpendicular to
the polar axis 
unit right of the pole
vertices (
, 0), (- 
, ?)
B. ellipse, directrix perpendicular to
the polar axis 
unit left of the pole
vertices (
, 0), (
, ?)
C. ellipse, directrix parallel to
the polar axis 
unit below the pole
vertices (
, 
), (
, 
)
D. hyperbola; directrix parallel to
the polar axis 
unit above the pole
vertices (
, 
), (- 
, 
)
Use the unit circle to find the value of the trigonometric function.tan 
A. 
B. 
C. 
D. 2