Find the center and radius of this circle.
x2 + y2 − 40x − 24y + 15 = 0

ANSWER

Center: (20,12)

Radius:23

EXPLANATION

The given circle has equation:

We complete the square as follows:

Comparing this equation to:

We have

representing the center and

being the radius.

you divide them and then you get the answer i took this class this year

step-by-step explanation:

2 equivalent expressions to represent the area of a rectangle and the top is n-3 and the side is 2

area of the rectangle = length * width

given length = n - 3

width = 2

replace it in the area

so area of the rectangle = (n-3) *2

= 2(n-3)

one of the expression is 2(n-3)

to get another expression we distribute 2 inside the parenthesis

2(n-3) is 2n - 6

so another expression is 2n - 6

two equivalent expression are

2(n - 3)   , 2n - 6