It has 3 because the 0's after the decimal point don't count as significant figures.
significant figures are how many figures greater then zero starting at a point. for example; 784944 to 3 significant figures is 785000, where you stop at the third number, round it up or down and replace the rest with 0's.
4 (the internal 0's count)
Depending on the type of the stopwatch, divisions of: 1/10 s, 1/100 s, 1/1000 s
A significant figure is a bit like a decimal place, in that just how a maths question may ask for the answer 'to 2 decimal places' it may also be answered to '2 significant figures'. For example, say you have the answer: 3.1415926 To 1 decimal place it would be: 3.1 (because you round the 4 after the 1 down, because it is less than 5), because there is 1 digit after the decimal place (.) To (a certain amount) of significant figures, however, means the total amount of digits/numbers in the answer, for example: To 3 significant figures, the answer would be: 3.14 because there are now just 3 digits in the answer. However, a '0' does not count as a significant figure if it is before/after a set of regular (1-9) numbers (but it does count if it is in-between). For example: 0.00000454 This is still to 3 significant figures, because the '0's are before the other numbers, and so do not 'count'. The same can be said for: 45400000000 This is still to 3 significant figures, because the '0's are after the other numbers, so they do not count. However: 400045 This is NOT to 3 significant figures, because the '0's are IN BETWEEN the other numbers, and so they DO count as significant figures. Hope I helped :)
There are two. The two leading 0's re not significant figures.
It has 3 because the 0's after the decimal point don't count as significant figures.
significant figures are how many figures greater then zero starting at a point. for example; 784944 to 3 significant figures is 785000, where you stop at the third number, round it up or down and replace the rest with 0's.
4 (the internal 0's count)
3 significants
That depends on the context in which it is found, or the calculation(s) involved. It should have no more significant figures than the value with the least number of sig. figs.
4 significant figures.Zeros are significant if they are between two non-zero numbers, or if they are "trailing" zeros in a number with a decimal point.Eg.0.000047 = 2 significant figures4.7000 = 5 significant figures
Depending on the type of the stopwatch, divisions of: 1/10 s, 1/100 s, 1/1000 s
0.050200 mg has 5 significant figures. The zeros before the 5 are considered significant when they come after a decimal point.
there is one significant figure in 001 because 0's only count as significant figures when they are after a whole number and there is a decimal point. ex. there are three sig figs in 100. 1.00 and 10.0
It isn't clear what the question is. If you are supposed to multiply or divide, and if by "signification figures" you mean significant digits, do the multiplication (or division), then round to three significant digits - since the least-precise of the numbers only has three significant digits.
In Mathematics, there are 3s.f. However in sciences, this is counted as 4s.f.