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February 28, 2015

February 28, 2015

Posted by **fakku** on Wednesday, May 4, 2011 at 10:13pm.

- geometry -
**Reiny**, Wednesday, May 4, 2011 at 10:28pm√((3+3)^2 + (y+1)^2 ) = √45

square both sides

36 + (y+1)^2 = 45

(y+1)^2 = 9

y+1 = ± 3

y = -1 ± 3

= 2 or -4

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