868.072
Significant figures are very important when it comes to calculations. If the mass of an electron is 9.10939 x 10-31 then its significant figures are: 9 x 10^-31( correct 1 significant figure), 9.1 x 10^-31 kg ( correct to 2 significant figures), 9.11 x 10^-31 (correct to 3 significant figures), and 9.109 x 10^-31 (correct to 4 significant figures).
The last four are significant.
It has 5 significant figures
4.5 uses 2 significant figures.
2300
Rounded to one significant figure it becomes 20
0.019 to 1 significant figure is 0.02 (significant figure is counted from the left with 1st significant being the first non-zero from the left)
0.09005
0.3
0.1
23.16492 has seven significant figures. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.
43.6109 has six significant figures. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.
The significant figure of 37.753 to 1 significant figure is 40.
If the zeros are significant figures then 900 is correct to 3 significant figures. If rounding off has occurred then the answer could be 1 sf or 2sf. For example : If the original number was 903 and rounding off to the nearest ten was required then 900 is correct to 2 significant figures. If the number was 927 and rounding off to the nearest hundred was required then 900 is correct to 1 significant figure.
Truncated to one significant figure, it's 9,000 .Rounded to one significant figure, it's 10,000.
1000 is written with one significant figure, with only the 1 being a significant figure.
It has 1 significant figure.