(x-11)^2 = r^2 = x^2 - 22 x + 121
so I do not get d
A circle’s area is represented by A = π(x2 − 22x + 121). What expression represents the radius of the circle?
A. x + 11
B. x − 11
C. x − 22
D. x + 22
I got d please correct if wrong thx.
6 answers
what is it then?
hint:
(a + b)² = a² + 2ab + b²
(a - b)² = a² - 2ab + b²
(a + b)² = a² + 2ab + b²
(a - b)² = a² - 2ab + b²
I'm confused what it it?
I got B I am an current math student.
The correct answer is B you dumb idiot