Three, because if it were not significant, the final 0 should not be there.
4
It has two significant digits.
It has 3 significant digits.
It has 6 significant digits.
How many significant digits does the following operation have(40,200.0 * 0.000240) - 2.778
4
It has 3 significant digits.
3 significant digits.
It has two significant digits.
Five. All nonzero digits are significant and zeros in between significant digits are 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.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
Three significant digits.
50.4 has 3 significant digits.
There are 3 significant digits in 20.0
It has 6 significant digits.