It is 0.0054 rounded to two significant figures
4000 has between 1 and 4 significant figures: if it is a rounded number, then it could have been 3999.9, for example, which would be rounded to 4000 to 1, 2, 3 or 4 significant figures.
Rounded to two significant figures, 0.8783 is equal to 0.88.
Exactly what you typed. 144.78 rounded to 2 decimal places is 144.78. You may mean significant figures, in which case it would be 1.4*10^3 (2 significant figures).
0.0062
It is then 0.067 when rounded to 2 significant figures
It is 1300 rounded to 2 significant figures
It is 6.7 when rounded to 2 significant figures
1,430 rounded to 2 significant figures is 1,400
1686 rounded to 2 significant figures is 1700
0.6942 rounded off to 2 significant figures is 0.69
99.9 rounded to 2 significant figures is 1.0e2
To round 1467 to three significant figures, we start counting from the left until we have three digits: 1, 4, and 6. The digit after the third significant figure is 7, which is greater than or equal to 5, so we round up the last significant figure. Therefore, 1467 rounded to three significant figures is 1470.
There are 2 or 3 significant figures. It could be 894° rounded to 2 significant figures; It could be 889.6° rounded to 3 significant figures.
6,596 rounded to two significant figures is 6,600
8.0325 rounded to two significant figures results in 8.0.
Rounded to 2 significant figures it is 0.043