Circle O is represented by the equation (x + 7) 2 + (y + 7) 2 = 16. What is the length of the radius of circle O?

Question

Mathematics

Noelle Baird

11 October, 04:01

Circle O is represented by the equation (x + 7) 2 + (y + 7) 2 = 16. What is the length of the radius of circle O?

+2

Answers (2)

Know the Answer?

Ruby Chang · Answer 1

4

Step-by-step explanation:

(x - h) ² + (x - k) ² = r²

r is the radius of the circle. We are given r as 16. So,

r² = 16

√r² = √16

r = 4

This is the final answer!

Amirah Suarez · Answer 2

4

Step-by-step explanation:

(x - h) ² + (x - k) ² = r²

r is the radius of the circle. We are given r as 16. So,

r² = 16

√r² = √16

r = 4

And we have our final answer!