They are both periodic functions that look like waves. They both have a period of 2pi and oscillate between 1 and -1.
Answer:
a. 40
Step-by-step explanation:
Given
and 


We plug in 2x into
.


We now substitute x=-3.


The correct choice is A.
Answer:
136 general admission tickets were purchased, and 300 upper reserved tickets were purchased.
Step-by-step explanation:
This question is solved using a system of equations.
I am going to say that:
x is the number of general admission tickets purchased.
y is the number of reserved tickets purchased.
There were 436 tickets purchased for a major league baseball game.
This means that
, or also, 
The general admission tickets cost $6.50 and the upper reserved tickets cost $8.00. The total amount of money spent was $3284.00.
This means that
. Since 




And:

136 general admission tickets were purchased, and 300 upper reserved tickets were purchased.
For 14, the answer is >. You inversed it. You are right about question 15.