Posted by **l** on Friday, September 7, 2012 at 1:04pm.

Any help would be appreciated!

What is 38.896/5.1 + 509.15 to the correct number of significant figures?

516.78

What is (154+8446.1)/54 to the correct number of significant figures?

159.261

Thanks!

- Math -
**Kevin**, Friday, September 7, 2012 at 6:46pm
Rules for counting significant figures are summarized below.

Zeros within a number are always significant. Both 4308 and 40.05 contain four significant figures.

Zeros that do nothing but set the decimal point are not significant. Thus, 470,000 has two significant figures.

Trailing zeros that aren't needed to hold the decimal point are significant. For example, 4.00 has three significant figures.

- Math -
**Anonymous**, Saturday, September 8, 2012 at 7:44pm
I understand that, but this is different because it's a complex number.

## Answer this Question

## Related Questions

- Math - 1. Is it more appropriate to use scientific notation for approximates or ...
- Significant Figures - I'm having a hard time with significant figures. Any help ...
- SCIENCE - PLEASE HELP PLESE - 1) Round 578.683 m, 47.3333 kg, and 789.5 cm to ...
- Chemistry - answear in standard exponential form with correct number of ...
- physics - Using the following number: 26,802 In 4 significant figures, this ...
- physics - Using the following number: 26,802 In 4 significant figures, this ...
- chemistry - A solution is prepared by dissolving 0.2222 (กพ0.0002) g of KIO3 in ...
- Science (Chemistry!) - I just do not understand ANYTHING about multiplying/...
- Chemistry - Hi I just need help with question (ii) and (iii), i know how to work...
- Significant figures - How would I go and express these numbers with 3 ...

More Related Questions