Solve the inequality by using the graph of the function.f(x) > 0, where f(x) = (x + 5)(x + 2)(x + 1).
A. (-?, -2)
B. (-1, ?)
C. (-?, -5) ? (-2, -1)
D. (-5, -2) ? (-1, ?)
Answer: D
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Find the absolute maxima and minima of the function on the given domain.
on the disk bounded by the circle 
A. Absolute maximum: 63 at 
and 
absolute minimum: 0 at 
B. Absolute maximum: 90 at 
and 
absolute minimum: 63 at 
and 
C. Absolute maximum: 153 at 
absolute minimum: 0 at 
D. Absolute maximum: 90 at 
and 
absolute minimum: 0 at 
Find the unknown length in the space figure.Find the distance x. Give an exact answer.
A. 8
B. 2
C. 2
D. 2
Factor by grouping.7m(m - 2) + 6n(2 - m)
A. (m - 2)(7m + 6n) B. (2 - m)(7m - 6n) C. (m - 2)(7m - 6n) D. (m - 2)(6m - 7n)
Solve the problem.Find the average of the list of Celsius temperatures. -13°, -7°, -3°, -4°, 0°, and -9°C
A. -4°C B. -7°C C. -6°C D. -5°C