Answer:
The radius is: 
Step-by-step explanation:
The equation of a circle in center-radius form is:

Where the center is at the point (h, k) and the radius is "r".
So, given the equation of the circle:

You can identify that:

Then, solving for "r", you get that the radius of this circle is:

Answer:
-1 Your answer is A
Step-by-step explanation:
4+ 10/-2=-1
10/-2=-5
4+-5=-1
Answer:
The answer is 15
Step-by-step explanation:
I know and is not stupid
Answer:
I think it is distrubuting propetry
Step-by-step explanation:
Im very sorry if I get it wrong