A number with only 1 significant figure can't be rounded to 3 significant figures
1100 to 3 significant figures is 1.10e3
2808 into 3 significant figures is 2810
0.000039 as you have to round it up. 3 and 8 are the significant figures but as you must round up, the answer becomes 0.000039.
5,560
A number with only 1 significant figure can't be rounded to 3 significant figures
17.9867 to 3 significant figures is 18.0
1100 to 3 significant figures is 1.10e3
2808 into 3 significant figures is 2810
0.0000004799 into 3 significant figures is 4.80e-7
1.557727 to 3 significant figures afer the decimal point is = 1.558
19.972
It is 1570000 rounded to 3 significant figures
0.000039 as you have to round it up. 3 and 8 are the significant figures but as you must round up, the answer becomes 0.000039.
The number 10.989 rounded to 3 significant figures is 11.0
22.4
79,700