Question

☺️☺️does anyone know☺️

Answer 1

The answer is 11. The radius of the circle is 11 because in the equation (x-h)^2=(y-k)^2=r^2, we take the square root of the constant term on the outside to get the radius. The equation given can be rewritten as (x+5)^2+(y-10)^2=(11)^2.

Answer 2

The standard form of a circle:

`(x-h)^2+(y-k)^2=r^2`
Where:
(h; k) - the coordinates of a centerr - the radius
We have:
`(x+5)^2+(y-10)^2=121`
therefore

`(-5;\ 10)` - the center

`r^2=121\to r=√(121)\to r=11` - the radius
Answer: 11