30.900 has 5 significant figures.
3 in A+
In 30900 there are [at least] three significant figures.
The number 30900 has three significant digits: 3, 0, and 9. The trailing zeros are not considered significant unless indicated by a decimal point (e.g., 30900. has five significant digits). Therefore, without a decimal point, the significant digits are limited to the non-zero digits and the leading zero.
3.
There are three.
3 in A+
In 30900 there are [at least] three significant figures.
The number 30900 has three significant digits: 3, 0, and 9. The trailing zeros are not considered significant unless indicated by a decimal point (e.g., 30900. has five significant digits). Therefore, without a decimal point, the significant digits are limited to the non-zero digits and the leading zero.
3.
There are three.
Three. The two zeros on the end are just placeholders. 30900 has 3 significant figures.
%rate:= 309 x 100%= 30900%
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
There are 4 significant figures in this number.
There are 4 significant figures in this number.
There are 3 significant figures in this number.
There are 2 significant figures in this number.