It is 62.1 - exactly as in the question.
1000 is written with one significant figure, with only the 1 being a significant figure.
It has 1 significant figure.
The significant figure 2.00 has to do with the certainty of a measurement.
1150 to 1 significant figure is 1000
9753261 to 1 significant figure is 10,000,000
0.0145
The next number up from 621 that contains all 3's in it is 3333. To figure out what whole number you need to add to 621 to get to 3333 just subtract the two. 3333 - 621 = 2712 Therefore, 2712 is the small whole number that you can add to 621 and get an answer that contains all 3's.
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.
2 percent of 621 = 12.422% of 621= 2% * 621= 0.02 * 621= 12.42
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.