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Mathematics 11 Online
OpenStudy (harrisonshark):

What is the equation of a circle whose center is at the origin and whose radius is 9?

OpenStudy (raden):

x^2 + y^2 = r^ just plug in r = 9

OpenStudy (harrisonshark):

thank you

OpenStudy (raden):

opss... i meant x^2 + y^2 = r^2 you're welcome :)

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