No, 2.3 is an example of 2 significant figures. The significant figures are 2 and 3
15.44
23
1. Zeros appearing between nonzero numbers are significant. For example, 3.02 has 3 significant figures. 2. Zeros appearing in front of nonzero numbers are not significant. For example, 0.0009 has 1 significant figure. 3. Zeros at the end of a number and to the right of a decimal point are significant. For example, 26.600 has 5 significant figures. 4. Zeros at the end of a number and to the left of a decimal point can be either significant or not significant. If the zero has been measured or estimated, it is significant. It is not significant if it has not been measured or estimated and is merely serving as a placeholder. A decimal placed after the zeros indicates that the zeros are significant. For example, 2000. has 4 significant figures. 2000 (with no decimal) has one significant figure. 5. In scientific notation, all digits appearing before the exponent are significant. For example, 3.226 x 105 has 4 significant figures.
Rounding a number to the nearest significant figure means rounding it to the nearest digit that indicates the precision of the measurement. This typically involves looking at the significant figures in the number and rounding to the appropriate level of precision. For example, 345.678 rounded to the nearest significant figure would be 300.
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.