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30.5 cm
Yes.
7.30*107 km
Three significant figures: two before the decimal point and one after.
Expressed as a decimal, rounded to three significant figures, 9/981 = 0.00917
30.5 cm
30.5 cm
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
0.0251
Yes.
365
7.30*107 km
It is then 2.64 when rounded to three significant figures
Three significant figures: two before the decimal point and one after.
Expressed as a decimal, rounded to three significant figures, 9/981 = 0.00917
It has three significant figures.
There are 4 of them