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October 22, 2014

October 22, 2014

Posted by **Coralie** on Sunday, February 15, 2009 at 6:18pm.

- Chem -
**bobpursley**, Sunday, February 15, 2009 at 6:21pmNope. When adding or subtracting, look for the lowest place value that is significant, in this case, tenths.

Numerator is 39.0 three sig digits.

- Chem -
**DrBob222**, Sunday, February 15, 2009 at 6:25pmFirst, 36.6 + 2.4 gives 39.0, a number with three s.f. When you divide by 4.803 that give you a number of 3 s.f. for the answer; however, the answer isn't 7.91, it is 8.11993 which rounds to 8.12. Did you make a typo in the problem?

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