147.658 to two significant figures is 150.
There are 2 significant figures.
104 in 2 significant figures is 1.0e2
2 significant figures.
2 significant figures.
It has 2 significant figures.
0.081778 to two significant figures is 0.082
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.
To express 1602 to 2 significant figures, you identify the first two non-zero digits, which are 1 and 6. Rounding the number, it becomes 1600. Thus, 1602 correct to 2 significant figures is 1.6 × 10^3.
32.2
all non zero digits are significant .2.zeroes betweenother significant.
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).
2 significant figures
There are two significant figures in 0.025.
there are 2 significant figures in 21000 2 & 1 are the significant figures.
The correct answer depends on what is known about the number 2610. If it is known to be correct to 3 significant figures, the correct answer is 2620. If it is known to be correct to 4 significant figures, the correct answer is 2622. If all the numbers are known to be accurate to at least 2 decimal places then the correct answer is 2621.92
0.48 has 2 significant figures and 0.4800 has 4 significant figures. The correct answer would depend on the device used to measure the string, and on the precision of that instrument.