Four.
All non zero numbers are always significant.
Zeroes that are between non zero numbers are always significant.
Zeroes that are to the right of a non zero number and that contain a decimal point are significant.
1
a significant figure is any number that isn't 0
...
That is not correct.
There are four significant figures in the number. Trailing zeros after the dp are significant as they indicate the precision of the number.
There are problems with using the concept of significant figures. It is not always possible to determine whether a zero is significant or not as the Wikipedia article explains.
Furthermore, the number of significant figures in a number can change on successive cases even if the number does not change by very much - for example
99 (2 sig fig)
100 (1 sig fig)
101 (3 sig fig)
Four significant figures.
10.00 has 4 sig figs.
4
three
4
4
seven
3
3 significant digits because first zeros are just placeholders
Three. All nonzero digits are significant and zeros in between significant digits are always significant.
3
There are 4 significant figures in 6.741.
Three - all nonzero digits are significant.
4
Five. All nonzero digits are significant and zeros in between significant digits are significant.
It has two significant digits.
3 significant digits.
It has 3 significant digits.
4 significant digits.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
000203 has 3 significant digits.
Three significant digits.
There are 3 significant digits in 20.0