4647 to 3 s.f. is 4650
1.1 is.
.020 has two significant figures: 2 and 0 A significant figure are digits that contain meaning contributing to precision. All numbers are considered meaningful except for zero, unless zero is between two other numbers or tailing non zero numbers where a decimal is present.
1000 with a vinculum (horizontal bar) over the first zero.
Well, isn't that a happy little question! In the number 0.0075, the significant figures are 2. The zeros before the 7 are not considered significant because they are just placeholders. Keep painting with those numbers and remember, there are no mistakes, just happy little accidents.
4647 to 3 s.f. is 4650
4650.
Two significant figures.
Two significant figures (2,8).
Two significant figures (8,9).
Two significant figures (3,4).
Two significant figures.
Two significant figures (2,3).
188,100 rounded to two significant figures is 190,000
Two
Two
There are two of them.