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October 21, 2014

October 21, 2014

Posted by **Anonymous** on Saturday, February 5, 2011 at 3:29pm.

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.

- Algebra -
**helper**, Saturday, February 5, 2011 at 3:33pmW = Cr^-2

W = C * 1/r^2

Multiply both sides by r^2

r^2 W = C

r^2 = C/W

- Algebra -
**Anonymous**, Saturday, February 5, 2011 at 3:43pmI 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?

- Algebra -
**helper**, Saturday, February 5, 2011 at 3:59pmSorry, I forgot the last step.

r = +- (sqrt(C/W))

- Algebra -
**Anonymous**, Saturday, February 5, 2011 at 4:04pmThanks. one more question. Why did you do the +- thing?

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