Solve the problem.If f(x) = 2x + 3 and g(x) = -6x2 - 5x - 4, find g(f(4)).
A. -125
B. -237
C. -93
D. -785
Answer: D
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Solve the problem using the quadratic formula.For a car traveling at x mph, stopping distance is estimated by the formula 
Find a (maximum) safe speed for a stopping distance of 670 ft. Round your answer to the nearest mph.
A. 75 mph B. 72 mph C. 63 mph D. 67 mph
Write in if-then form.x = 9 if 2x + 9 = 27.
A. If x ? 9, then 2x + 9 = 27. B. If 2x + 9 ? 27, then x = 9. C. If 2x + 9 = 27, then x = 9. D. If x = 9, then 2x + 9 = 9.
Determine if the infinite geometric series converges or diverges. If the series converges, find its sum.-6 - 2 - 
- . . .
A. converges, - 9
B. converges, - 
C. converges, 3
D. diverges
Rewrite the trigonometric expression as an algebraic expression involving the variable u. Assume that 
and that the value of the "inner" inverse trigonometric expression represents an angle ? such that 
cot (cos-1 u)
A. 
B. 
C. 
D. 