2.31 / 0.790 = 2.92
(2.08 × 10³) = (3.11 × 10²) = 6.47 × 10⁵
Explanation:
For the first problem:
2.31 have 3 significant figures
and
0.790 which have 3 significant figures (the first 0 is not a significant figure while the last 0 is).
The answer should have 3 significant figures.
2.31 / 0.790 = 2.92405 = 2.92 (3 significant figure)
For the second problem:
2.08 have 3 significant figures
and
3.11 have 3 significant figures
The answer should have 3 significant figures.
(2.08 × 10³) = (3.11 × 10²) = 6.47 = 6.4688 × 10⁵ = 6.47 × 10⁵ (3 significant figures)
Learn more about:
significant figures
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