Determine the center and radius of the following circle equation:
x2 + y2 – 20x – 14y + 145 = 0

Step-by-step explanation:

compare with x²+y²+2gx+2fy+c=0

center=(-g,-f)=(20/2,14/2)=(10,7)

radius=√(g²+f²-c)=√(10²+7²-145)=√(100+49-145)

=√4

=2

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*