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anonymous
 one year ago
Which is an equation of the circle with a radius of 9 units and center at
(–4, 2)?
(x − 9)2 + (y + 4)2 = 4
(x − 4)2 + (y + 2)2 = 81
(x + 4)2 + (y − 2)2 = 81
(x − 2)2 + (y + 4)2 = 81
anonymous
 one year ago
Which is an equation of the circle with a radius of 9 units and center at (–4, 2)? (x − 9)2 + (y + 4)2 = 4 (x − 4)2 + (y + 2)2 = 81 (x + 4)2 + (y − 2)2 = 81 (x − 2)2 + (y + 4)2 = 81

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Teddyiswatshecallsme do you know this?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Equation of a circle: \[(x  h)^2 + (y  k)^2 = r^2\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0h and k represent the x and y coordinates of the center of the circle

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0r represents the radius

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The center is (–4, 2) and h represents 4 and k represents 2. 9 is the radius of the circle and we have to square that = 81.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay that makes sense. i just googled it after awhile

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay so now plug those values into the original formula of the circle

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0(x+4)^2 +(y2)^2 = 81

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So what answer should that be?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0could you help me with another one?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sure. Just post it separately
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