The graph of f ′′(x) is continuous and decreasing with an x-intercept at x = –3. which of the following statements must be true?
a. the graph of f is always concave down.
b. the graph of f has an inflection point at x = –3.
c. the graph of f has a relative minimum at x = –3.
d. none of these is true.

answer: a. 13/44

step-by-step explanation: judging by the information given to us, we are looking for experimental probability. we can see that 13 males have chosen chocolate ice cream. there are 44 ice creams in total (remember that the total is always the denominator). so our answer is 13/44.

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya

any of them that add up to 180 degrees.