Question

How many significant digits does this number have? 2.5000x10^4 ...?

Answer 1

This number has 5 significant figures, this is obtained by counting all of the numbers, as all of these digits according to the rules for determining significant figures are important and or significant.

Answer 2

Here is the answer to the given question above.
So in order to know how many significant digits that number given above has, let us convert the exponential form into the expanded form.
So its expanded form would be 2.5000 x 10, 000. The result for this would be 25,000. Based on the rules of significant figures, this number has 5 significant figures. Hope this answer helps.