Answer:
B
Step-by-step explanation:
Answer:
x equals to - 5.5 or - 11/2
12, 24, 36, 48, 60,
15, 30, 45, 60
The 60th caller will win both.
The position of the particle as function of time is given as

The velocity as function of time is

A graph of f(t) versus t and of v(t) versus t is shown below.
The velocity increases in the intervals t = (2, 6) and t = (10, 14) and with a periodicity of 8.
In the range t = [0, 16], the velocity increases in the interval t = (2,6)∪(10, 14).
Answer: (2,6)∪(10,14)