Posted by **Lucelys** on Wednesday, September 23, 2009 at 7:30pm.

So in physical science i'm learning about vectors using the pythagoream theorem, and when i get what c equal i wanted to know if i round to the next highest number, put it is a decimal, or do nothing at all. Helppp pleaeee[:

- physics -
**MathMate**, Wednesday, September 23, 2009 at 9:08pm
It depends on the problem.

If the two orthogonal components (at right angles) are given to 4 significant figures, your answer should do the same.

For example,

x=42.34

y=55.31

z=√(x²+y²)

=(69.65578)

But 69.65578 has 7 significant figures, which is more than the original information, so round to the same number of figures, namely 69.66 would do.

## Answer this Question

## Related Questions

- physical science - The resultant vector of two particular displacement vectors ...
- Pythagorean theorm - i have been workin on this problem for hours and desperatly...
- Physics - The sum & difference of two non-zero vectors Ä & B are equal in ...
- Math (Statistics) - How do I go about tackling this problem? The American ...
- reading - Which of the following statements about learning styles is false? A. ...
- jmhs help - Which of the following statements about learning styles is false? A...
- the exceptional child - physical disabilities affect young children's learning ...
- math - how do you change the fraction 8/35 to a percent? please try to help. ...
- Pre-Calculus - Find the area of the triangle. Round to the nearest tenth. B= 42....
- Science - 1) The vector sum of three vectors gives a resultant equal to zero. ...

More Related Questions