You haven't provided the steps.
mathisfun.com/geometry/construct-linebisect.html
Here is a useful link to the correct steps. The instructions may not be exactly the same but I think you can do it.
Take into account, that in general, a cosine function of amplitude A, period T and vertical translation b, can be written as follow:

In the given case, you have:
A = 4
T = 3π/4
b = -3
By replacing you obtain:

Hence, the answer is:
f(x) = 4cos(8/3 x) - 3
Let x represent the # of people in sid’s group: 200 - (16.25x + 6.50x) = 18.25
200 - 22.75x = 18.25
-22.75x = -181.75
x = about 8
if Sid is not included in the group, i think the answer is D. 7, but im not sure
Answer:
funny funny
Step-by-step explanation:
Answer:
B- 3,500.
Step-by-step explanation:
This is because 3,500 is the lowest number that can be rounded to 4,000.
3,999 and 4,001 can also be rounded but.. (let me show you an image to help).
3,500 < 3,999 < 4,001.
That goes from smallest to largest numbers that round to 4,000.
Hope that helps. x