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Mathematics 38 Online
OpenStudy (anonymous):

Find the center and radius of the sphere X^2 - 18x + y^2 - 10y + z^2 +14z = -119

OpenStudy (anonymous):

i got the center points at ( 9, 5, -7).....and kind of unclear about how to go about getting the radius at this point

OpenStudy (anonymous):

U know how to complete the square usually, right? Do it 3 times for x,y,x and the rhs = r^2

OpenStudy (anonymous):

oh is that it?

OpenStudy (anonymous):

Yep.

OpenStudy (anonymous):

lol...okay...thnx so much dude

OpenStudy (anonymous):

ur welcome.

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