17.9867 to 3 significant figures is 18.0
0.036 The significant figures are indicated by the square brackets 0.0[35550], so we round this part of the figure.
The number 10.989 rounded to 3 significant figures is 11.0
130
0.26
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
88930371.007 to 2 significant figures is 89000000
0.0034088 in three significant figures would be 0.00341
8468 rounded to 2 significant figures is 8500
0.004560 to two significant figures results in: 0.0046
0.036 The significant figures are indicated by the square brackets 0.0[35550], so we round this part of the figure.
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
Rounded to 2 significant figures it is 0.043