Answer:
8.13
Step-by-step explanation:
The radius is the distance from the center to any point. The distance from (2,1) to (0,1) is of course 2. The general formula for a circle with radius r and center (a,b) is
In our case we get
Answer:
im gonna say 4 if im wrong its my fault
You need k by itself, so the only way to do that is to divide both sides by 5