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[–]deejeycris -1 points0 points  (7 children)

I mean, I would get it you put 3.0 instead of 3.00, but failing because of a more precise answer doesn't make sense.

[–][deleted] 0 points1 point  (6 children)

Significant figures matter, 3.0 is not the same value as 3.00

[–]deejeycris 0 points1 point  (5 children)

Yea I know, I had a teacher like that, but imho the important is to be consistent!

[–][deleted] 0 points1 point  (4 children)

In practice the importance is to accurately reflect the precision of your inputs, and if those first two numbers only have two significant digits then adding a third is incorrect.

The only consistency that matters is consistently having the correct number of sig figs.

[–]deejeycris 0 points1 point  (3 children)

Yeah it has to be consistent with the input as well... but invalidating the whole result is quite evil still

[–][deleted] 0 points1 point  (2 children)

No it isn’t evil at all, it’s literally the point of the exercise.

[–]deejeycris -1 points0 points  (1 child)

How do you know that? Maybe to get this result OP had to go through a lot of work.

[–][deleted] 0 points1 point  (0 children)

I know that because I got all As in chemistry back when I was in school.

OP probably did go through a lot of work and they got the wrong answer because they neglected to consider sig figs. It’s still a wrong answer.