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Lilmike234
 one year ago
what is the radius of a circle with the equation x^2+y3^2 =21
Lilmike234
 one year ago
what is the radius of a circle with the equation x^2+y3^2 =21

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Ac3
 one year ago
Best ResponseYou've already chosen the best response.0The formula for a circle is x^2+y^2=r^2, therefore it's already set up for you. Not it's not 21 Here I'm gonna go with the sqrt(21) for the radius. Unless 21 is supposed to be squared in that case it's just 21.

zzr0ck3r
 one year ago
Best ResponseYou've already chosen the best response.0\(x^2+(y3)^2=21\\ (x+0)^2+(y3)^2=(\sqrt{21})^2\)

zzr0ck3r
 one year ago
Best ResponseYou've already chosen the best response.0You should be able to complete it from here?

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.0Is that equation written exactly as the problem states or should it be: x^2+(y3)^2 =21

lilmike234
 one year ago
Best ResponseYou've already chosen the best response.0So my answer is 4.583

zzr0ck3r
 one year ago
Best ResponseYou've already chosen the best response.0How did you get that?
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