Well, when we're looking at 33.246 and we want to round it to 2 significant figures, we focus on the first two non-zero digits. In this case, it's 3 and 3. The digit after the second significant figure is 2, which is less than 5, so we keep the 3 and 3 as they are. Therefore, 33.246 rounded to 2 significant figures is 33.
0.081778 to two significant figures is 0.082
147.658 to two significant figures is 150.
Nothing
The correct answer is 2. The three zeros between the decimal point and the 1 are place holders but they are NOT significant digits. See, for example, the Wikipedia link.
32.2
all non zero digits are significant .2.zeroes betweenother significant.
2 significant figures: 5 and 6.
There are two significant figures in 0.025.
Significant figures are very important when it comes to calculations. If the mass of an electron is 9.10939 x 10-31 then its significant figures are: 9 x 10^-31( correct 1 significant figure), 9.1 x 10^-31 kg ( correct to 2 significant figures), 9.11 x 10^-31 (correct to 3 significant figures), and 9.109 x 10^-31 (correct to 4 significant figures).
there are 2 significant figures in 21000 2 & 1 are the significant figures.
2 significant figures.
There are 2 significant figures.