8.0x 10^10
8.0 x 10^2
1.3
8.0 x 102
107000
The number 0.0023040 has 5 significant figures because zeros (0s) before other numbers do not count as being significant. So the only significant figures are "23040". If you write the number in scientific notation, it's easier to tell how many figures are significant. 2.3040 x 10-3 has 5 significant figures.
It's 10, correct to two significant figures.
The rules in writing significant figures state that non zero numbers always significant. Zero numbers between the non zero numbers are also significant. Finally, if you write a number in scientific notation and you are able to get rid of the zeroes, they are not significant.
Six (I am assuming the period is a decimal divider) otherwise you would not write out trailing zeros.
Five. If you write numbers representing the numbers in a calculation or an answer, then the number of significant figures is the number of figures written down. The number of significant figures in 351.739002 is 9; Don't confuse "significant figures" with "decimal places". The number above has 6 decimal places.
If you have written a number such as 111.1 to 3 significant figures, for example, (which would be 111) then we would write "111 (to 3 s.f.)".
107000
86.346 +54.43 9.5 _______ 150.276 Now after we round the number and write it in significant figures , so it should look like this; 150 why? because when we need to round a number using the significant figures , we must look for the smallest significant figures which is 9.5 .
7.428571429 significant figures as needed
to report an answer with the correct number of significant figures, you may need to write significant zeros after the calculator number.
0.00431209461 with four significant figures is 0.004312
132.7495 in two significant figures is 130.
1094.11 in 3 significant figures is 1090
4 is a whole number and can never be a decimal.
The number 0.0023040 has 5 significant figures because zeros (0s) before other numbers do not count as being significant. So the only significant figures are "23040". If you write the number in scientific notation, it's easier to tell how many figures are significant. 2.3040 x 10-3 has 5 significant figures.
0.081778 to two significant figures is 0.082