Respuesta :
Answer:
6
Step-by-step explanation:
The equation for a circle is (x-h)^2 +(y-k)^2 = r^2
where (h,k) is the center of the circle and r is the radius
(x+5)^2+(y-7)^2= 36
Rewriting
(x+5)^2+(y-7)^2=6^2
The center is at (-5,7) and the radius is 6