0.3 has one significant figure.
2000 has one significant figure. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.
1 significant figure.
One - all nonzero digits are significant. Yes, but embeded 0s are also counted. 102 has 3 sig digs. Secondly, trailing 0s (0s on the right hand side of the number) are significant if they are an indication of the degree of accuracy, but not otherwise.
2 of them.
(if there is to be one significant figure) 2 * 102(if there are to be two significant figures) 2.0 * 102 (if there are to be three significant figures) 2.00 * 102
3 of them.
We need to first move the decimal two (2) places to the left: 480 = 4.80 x 102 The 2 in 102 comes from how many places we moved the decimal. It's positive because the number it represents is larger (480 > 4.8) With one significant figure, we need to round to the nearest whole number: 5 x 102 The answer is 5 x 102
It has 1 significant figure.
0.004 has 1 significant figure.
1 significant figure. It can also be written as 4x10^6 (one sig fig)
Two significant figure
1 significant figure.
It has 1 significant figure.
3 significant figures.
3 significant figures.
1 significant figure.