Answer :
Final answer:
The number of significant figures in the given numbers are: a. 0.906 - 3 significant figures, b. 2.468 - 4 significant figures, c. 460.00 - 5 significant figures, d. 42,710 - 5 significant figures, e. 20.005 - 5 significant figures, f. 1.23 - 3 significant figures, g. 2400 - 2 significant figures, h. 4500 - 2 significant figures, i. 504.0 - 4 significant figures, j. 0.03570 - 4 significant figures.
Explanation:
To determine the number of significant figures in each given number, we apply the rules for significant figures:
- 0.906: There are three digits, so it has three significant figures.
- 2.468: There are four digits, so it has four significant figures.
- 460.00: There are five digits, so it has five significant figures.
- 42,710: There are five digits, so it has five significant figures.
- 20.005: There are five digits, so it has five significant figures.
- 1.23: There are three digits, so it has three significant figures.
- 2400: There are two digits, so it has two significant figures.
- 4500: There are two digits, so it has two significant figures.
- 504.0: There are four digits, so it has four significant figures.
- 0.03570: There are four digits, so it has four significant figures.
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