Question

Round 398,742 to 3 Significant Figures

Answer 1

So 3 sig figs can be done differently. If you use scientific notation it will be 3.98x10^5

If you just want to round you round the first 3 numbers and add zeroes to the rest of it.

So 398742–> 398700 now since 7 is more than 5 you would round the 8 up to 9.

So 399,000 would be 3 significant figures.

Answer 2

I think it is this answer