Significant Figures

[dejan91]

What the f**k is the deal with them? To clarify, is it TWO significant figures?

So if you have an answer of 7143, it would become 7.1x10³, right?

I've even seen answers where you get something like 230, and the answer is 2.3x10². What about THAT?

And if you calculate 29.52, you would write the answer as 30, correct?

[TrueTears]

Our teacher said always write to two DECIMAL place unless stated lol.

[dejan91]

See, that's exactly what i'm talking about lol. Can't there be a consensus, and we just stick to that. Just like g = 9.8 m/s^2 and g = 10 m/s^2. Sure, VCAA says it's 10, but that doesn't stop textbooks and checkpoints from using 9.8.

[TrueTears]

See, that's exactly what i'm talking about lol. Can't there be a consensus, and we just stick to that. Just like g = 9.8 m/s^2 and g = 10 m/s^2. Sure, VCAA says it's 10, but that doesn't stop textbooks and checkpoints from using 9.8.

Yeah, I'd ignore the ones that use 9.8, just use 10 whenever you see them heh

[TonyHem]

Most solutions to exams do 2 significant figures.
Personally, I usually do 3, dunno if I should change though.

[Fyrefly]

Most solutions to exams do 2 significant figures.
Personally, I usually do 3, dunno if I should change though.

Unless it stipulates otherwise, I would recommend 2.
3 is good though if there's a 'carry-on' question that requires this answer to be reused, because your answer to the carry-on question will be more accurate.

[mano91]

you answer in the least accurate data given.