Find any inflection points given the equation.f(x) = 2x3 + 9x2 + 12x
A. No inflection points
B. Inflection points at (-1, -5), (-2, -4)
C. Inflection point at 
D. Inflection point: (0, 0)
Answer: C
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Subtract.
- 
A. 
B. 
C. 
D. 
Solve the problem.Find the work done by a force of 10i (newtons) in moving an object along a line from the origin to the point 
(distance in meters).
A. 50.00 joules B. 64.03 joules C. 44.61 joules D. 12.81 joules
Solve the problem.Measurements of the height of a group of men entering a particular college produced the following table. What is the probability that a man entering the college is 68-69 inches tall?
A. 18.60% B. 29.48% C. 24.51% D. 29.32%
The displacement d (in meters) of an object at time t (in seconds) is given. Describe the motion of the object. What is the maximum displacement from its resting position, the time required for one oscillation, and the frequency?d = 4 cos (3t)
A. simple harmonic; 4 m; 3 ? sec; 
oscillations/sec
B. simple harmonic; 4 m; 
? sec; 
oscillations/sec
C. simple harmonic; 4 m; 
sec; 
? oscillations/sec
D. simple harmonic; -4 m; 
? sec; 
oscillations/sec