Approximate to the nearest hundredth.
A. 3.15
B. -30
C. 3.16
D. 2.15
Answer: D
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Find the values of x for which the given function is concave up, the values of x for which the function is concave down, and any points of inflection.y = 7x - x3
A. Concave up for x < 0, and x > 1, concave down for 0 < x < 1, points of inflection at (0, 0), (1, 7) B. Concave up for x < 0, concave down for x > 0, point of inflection at (0, 0) C. Concave down for all x, no points of inflection D. Concave down for x < 0, concave up for x > 0, point of inflection at (0, 0)
Use the theoretical probability formula to solve the problem. Express the probability as a fraction reduced to lowest terms.Use the spinner below to answer the question. Assume that it is equally probable that the pointer will land on any one of the five numbered spaces. If the pointer lands on a borderline, spin again. Find the probability that the arrow will land on 2 or 3. 
A. 2
B. 1
C. 
D. 
Find the required inverse and locate on the number line.Find the additive inverse for 
and graph on the number line. 
A. 
B. 
C. 
D. 
Find the composition. If f(x) = x2 + 6x and g(x) = x + 3, find ( g ? f)(2)
A. 55 B. 80 C. 19 D. 21