Explanation:
Significant figures : The figures in a number which express the value -the magnitude of a quantity to a specific degree of accuracy is known as significant digits.
Rules for significant figures:
- Digits from 1 to 9 are always significant and have infinite number of significant figures.
- All non-zero numbers are always significant. For example: 684, 6.24 and 85.4 all have three significant figures.
- All zero’s between integers are always significant. For example: 5605, 5.905 and 50.15 all have four significant figures.
- All zero’s preceding the first integers are never significant. For example: 0.0098 has two significant figures.
- All zero’s after the decimal point are always significant. For example: 4.400, 47.00 and 440.0 all have four significant figures.
- All zeroes used solely for spacing the decimal point are not significant. For example : 3000 has one significant figure.
A). 11 soccer player : 2 significant figures
B). 0.070020 meter : 5 significant figures
C). 10,800 meters: 5 significant figures
D). 0.010 square meter: 2 significant figures
E). 5.00 cubic meters: 3 significant figures
F). 507 thumbtacks: 3 significant figures
