Which choice gives the radius of the circle represented by the equation?
x squared + y squared+225 A) 225 B) 112.5 C) 15 D) square root of 25

The radius of the circle represented by the equation x squared + y squared = 225 is 15.

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Asked 1/22/2011 3:46:35 AM

Updated 7/23/2014 2:58:52 AM

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The radius of the circle represented by the equation x squared + y squared = 225 is 15.

Added 7/23/2014 2:58:52 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [7/23/2014 3:08:03 AM]

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Which choice gives the center and radius of the circle represented by the equation? (x-3.5) squared + (y-2.4) squared = 8 A: (3.5, 2.4); 2 square root of 2 B: (3.5, 2.4); square root of 2 C: (3.5, 2.4); 2 D: (-3.5, -2.4); 2 square root of 2

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Updated 7/23/2014 3:00:14 AM

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The center and radius of the circle represented by the equation (x-3.5) squared + (y-2.4) squared = 8 is center (3.5, 2.4); radius = 2 square root of 2

Added 7/23/2014 3:00:14 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [7/23/2014 3:07:58 AM]

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