How many significant figures are there in 7.2500?

Answer 1

SIG FIGS!

Here's a couple rules to Sig Figs:

1.) If it isn't zero, COUNT IT!

2.) If the zeros is before the decimal, forget it.

3.) If the zeros come after the decimal, consider it.

4.) Is the zeros are inbetween other numbers (for example, 1.03), count it.

Well, I don't see any zeros, so count 'em!

That would 4 Sig Figs. (Significant Figures.)

Answer 2

Five.