The significant figure could be the 3 as it is gives how big the number is.
If you want how many significant figures there are, then it could be:
* 4: in scientific notation the number is 3.0280 x 10^3 = 3.028 x 10^3 - removing the trailing zero (to leave 4 figures in the mantissa) has had no effect on the value of the number; or
* 5: normally trailing zeros after a decimal point are not written, so in writing point zero (.0) it is assumed to have some significance, eg the number was rounded to 1 decimal place or 5 significant figures.
37.753 rounded to one significant figure becomes 40
The first significant figure of 0.000169 is the 1 and it has 3 significant figures.
2.5368 to 5 significant figure=2.5368
It is 200 rounded to one significant figure
Rounded to one significant figure it becomes 40
37.753 rounded to one significant figure becomes 40
6276 as a significant figure would be 4 significant figures.
1000 is written with one significant figure, with only the 1 being a significant figure.
It has 1 significant figure.
The first significant figure of 0.000169 is the 1 and it has 3 significant figures.
The significant figure 2.00 has to do with the certainty of a measurement.
654 rounded to one significant figure becomes 700.
The significant figure of 78.00100 is 78.00. It had 7 significant figures and a least significant decimal of -5.
0.3 has one significant figure.
1150 to 1 significant figure is 1000
9753261 to 1 significant figure is 10,000,000
4916 to 1 significant figure is 5000