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April 25, 2015

Homework Help: Chem

Posted by Brandon on Thursday, February 19, 2009 at 6:08pm.

I have to convert inches to 250 cm.My book states the expression to calculate this as 250 cm x 1in/2.54 cm. I followed through to divide, and got 98.425, which following the rules of significantdigits, would equal 98, right? 250 only has 2 sig digs, it'd have to be 98. But my book says its 98.4. How can this be?

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