Algebra
posted by Anonymous on .
Solve the equation w=Cr^2 for r.
This is what I got so far....
w/C=r^2
Then I think it's...
ok so I don't really know. I want to put w/C=1/r^2 but the r is still not alone and I'm not sure where I'd take it from there. Please help.

W = Cr^2
W = C * 1/r^2
Multiply both sides by r^2
r^2 W = C
r^2 = C/W 
I think your right. I got the same thing but for some reason I thought that the r is still not alone. Are you sure i don't go one step further and say that
r=sqrt(c/w)
what do you think? 
Sorry, I forgot the last step.
r = + (sqrt(C/W)) 
Thanks. one more question. Why did you do the + thing?