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April 16, 2014

April 16, 2014

Posted by **mike** on Monday, November 21, 2011 at 12:27pm.

- math -
**drwls**, Monday, November 21, 2011 at 12:42pmWhat is i.p.c. supposed to mean?

21 - 25 = -4.

I used positive numbers for north displacement , so the minus sign means it ends up 4 meters south

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