ANSWER
The radius is 4
EXPLANATION
The given equation is:

We complete the square to get the expression in standard form:


We factor using perfect squares to get:

This implies that,

Comparing to

The radius is r=4
A (-5, 6)
B (-5, 2)
C (-9, 2)
D (-9, 6)
As it is just a rotation around the origin by 180, you can just change the sign in front of the numbers :)
Answer: .
Step-by-step explanation:
Answer:
I think it's 30
Step-by-step explanation:
I took it as reflection of light..or ig it has same idea
Answer:
sample 1: 75
sample 2: 86
Step-by-step explanation: