Answer:

Step-by-step explanation:
Since the amplitude of the cosine function is 2, I would put the multiply it by 2. There is no phase shift
The period is 1/2, so it would be 4pi
Plug them in into y=Acos(Bx), y=2cos(4pix)
A) Word-processing program is an example of a software
So, first you divide 75000 by 1000. Then you add 2 to each side. Then that's the answer, x=77