It is 40
The number of significant figures is one.
One significant figure
One significant figure.
There is only one significant figure which is the 7. When zeros are placed before a number, they are not considered significant figures.
3,000,000 has one significant figure.
39
39
0.0915
5 significant figures.
0.0714
4 significant figures.
There are 4 significant figures in 0.0032. Seems to be only 2 significant figures in this number.
4 significant figures.
There are two significant figures in 10000000.
there are 2 significant figures in 21000 2 & 1 are the significant figures.
The number of significant figures is one.
It has 5 significant figures - one trailing zero is significant.