Answer:
1 significant figure:
1000
2 significant figures:
670
0.0093
3 significant figures:
0.184
1.30
4 significant figures:
120.9
1.008
Explanation:
The significant figures of a number written in positional notation are digits that carry meaningful contributions to its measurement resolution. This includes all digits except: all leading zeros.
5 Rules for significant figures:
1: All non-zero numbers ARE significant.
2: Zeros between non-zero numbers ARE significant.
3: Leading zeros are NOT significant.
4: Trailing zeros to the right of the decimal ARE significant.
5: Trailing zeros in a whole number with the decimal shown ARE significant.
Look at the attachments for more examples.
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