The number 40 has how many significant figures?

2 Answers

1

Explanation:

It has one because the 4 is the significant digit and the 0 doesn't count. However, if you had 40.0, you would have three, because the 0 after the decimal point and the 4 count and the numbers between the significant digits also count.

Apr 18, 2017

There is only 1 significant figure in the number 40.

Explanation:

Since there is no decimal point in the number, the trailing zero is not significant. Therefore the number 40 has only 1 significant figure.