Answer:

Step-by-step explanation:
The period of the functions
,
,
or
can be calculated as

The period of the functions
or
can be calculated as

A. The period of the function
is

B. The period of the function
is

C. The period of the function
is

D. The period of the function
is

E. The period of the function
is

Number 15 is no solution.
Number 27 is that x has to be between -2 or 2.
This could be explained as -2≤x≤2
One jigger is 44.3603 milliliter.
I hope I helped you.
Answer:
60° and 120° are supplementary angles. 93° and 87° are supplementary angles.
They are supplementary angles because they form an 180º angle together.