59 is exact
You don't know that it's an exact number. It might be 59,1 or something like that, rounded to 59. Same with 2.
The lowest amount of significant figures is 2, so that's what the answer should have. No idea why they opted for 1 in the first question.
Comment has been collapsed.
Okay that makes sense. Thank you heaps. I looked back and in some of the questions the lecturer specifically said "presume 4 is exact". I assume that when he doesnt mention it, we shouldnt presume anything is exact then! Thanks.
Yeah, I'm totally lost on the first question. No idea why the said that it's 1 decimal place.
Comment has been collapsed.
Sometimes you'll know from the context that a number is exact (like for an example if you're using the speed of light, as the meter is defined based on it), but if you don't get such a context, or you're told that a number is exact, you can generally not assume it.
Comment has been collapsed.
23 Comments - Last post 50 minutes ago by Carenard
283 Comments - Last post 1 hour ago by pb1
2 Comments - Last post 2 hours ago by adam1224
4 Comments - Last post 3 hours ago by Chris76de
350 Comments - Last post 3 hours ago by madjoki
10 Comments - Last post 6 hours ago by 1312poggerson
0 Comments - Created 6 hours ago by Warriot
109 Comments - Last post 7 minutes ago by RePlayBe
19 Comments - Last post 12 minutes ago by DkXfS
81 Comments - Last post 39 minutes ago by Vasharal
11,230 Comments - Last post 53 minutes ago by CultofPersonalitea
11 Comments - Last post 54 minutes ago by M0J
101 Comments - Last post 56 minutes ago by Thedarksid3r
3,938 Comments - Last post 1 hour ago by lucasscarlet
This is probably my first post in many weeks (probably months)...!!
1
So I have this question:
Q: Evaluate the following, quoting the result to a suitable degree of accuracy
6.08 / 59 + 0.656
A: 0.8
I was wondering why it's 0.8
Here is what I got. 6.08 / 59 is 0.10305, 6.08 is 3 significant figures and 59 is exact. Then 0.103 + 0.656 is 0.759. Both of 0.103 and 0.656 have 3 decimal points so we should use a 3 decimal point answer. Why then is the answer 1 decimal point?
2
11 * 0.18067
The answer says that I need to have 2 significant figures, however isn't 11 an exact number? Therefore shouldnt my answer be 5 sig figs?
Thanks heaps in advance and sorry for the random post.
Thanks for Skyrim
Comment has been collapsed.