## anonymous one year ago How do I change this number to standard scientific notation 5.408?

1. anonymous

@anitasonia98

2. zzr0ck3r

well, it is already almost there. You just need to write $$5.408\times 10^0$$

3. anonymous

really?

4. zzr0ck3r

yes, scientific notation is in the form $$a.bcde..\times 10^k$$

5. zzr0ck3r

in other words we only want one number before the decimal

6. anonymous

How do I write 72.41 x 10^-2 in standard scientific notaiton?

7. zzr0ck3r

if it were $$10.58$$ then we would write $$1.058\times 10^{-1}$$

8. anonymous

Ooh Thanks

9. zzr0ck3r

we want one number in front of the decimal If you need to move the decimal to the left to make that happen, then you subtract one from the power of 10 if you need to move the decimal to the right then you add one to the power of 10

10. freckles

is it weird they must the word standard in front of scientific notation? seems like an extra word to me.

11. zzr0ck3r

I think standard means base 10?

12. freckles

so there is unstandard scientific notation? :p

13. zzr0ck3r

$$72.41\times 10^{-2}=7.241\times 10^{-3}$$

14. zzr0ck3r

I have no idea, but if there was a standard, surely it would be the one we know :)

15. zzr0ck3r

Maybe some Pigmy tribe uses something different.

16. zzr0ck3r

ps I have that backwards, if we move left add 1, if we move right subtract 1.