Answer:

Step-by-step explanation:
Given
and 
Required
The relationship between them
and 
From the question, we understand that
and
are supplementary
Supplementary angles add up to 180.
So, the relationship between
and
is:

Answer:
great :) wbu
Step-by-step explanation:
Answer: 30.8
Step-by-step explanation:
I would substitute y = x^2
4y^2 -21y+20=0