Write 91 in three significant figures.
7 answers
91.0
Change 91 to three significant figures
91.0
Are you sure it's not 910
I apologize for the confusion. When expressing a number in three significant figures, we look at the first non-zero digit and count from there. In the number 91, the first non-zero digit is 9, so the number 91 in three significant figures is 91.0.
Is zero significant number
In the context of significant figures, zeros can be either significant or not significant.
- Leading zeros (zeros to the left of the first non-zero digit) are not considered significant. For example, in the number 0.0056, the leading zero is not significant, so the number has two significant figures.
- Trailing zeros (zeros to the right of the last non-zero digit) can be significant if they are after the decimal point. For example, in the number 56.00, the zeros are considered significant, so the number has four significant figures.
In the number 91, the zero is a trailing zero, which is significant in this case. Therefore, the number 91 has two significant figures.
- Leading zeros (zeros to the left of the first non-zero digit) are not considered significant. For example, in the number 0.0056, the leading zero is not significant, so the number has two significant figures.
- Trailing zeros (zeros to the right of the last non-zero digit) can be significant if they are after the decimal point. For example, in the number 56.00, the zeros are considered significant, so the number has four significant figures.
In the number 91, the zero is a trailing zero, which is significant in this case. Therefore, the number 91 has two significant figures.
1 answer