3
The number of significant figures in each measurement is determined by the number of digits that are known with certainty plus one uncertain digit. In this case:
1. 76.48 cm: 4 significant figures (all digits are known with certainty)
2. 76.47 cm: 4 significant figures (all digits are known with certainty)
3. 76.59 cm: 4 significant figures (all digits are known with certainty)
Therefore, each measurement has 4 significant figures.
Added 7/31/2023 2:35:50 AM
This answer has been confirmed as correct and helpful.
