Respuesta :

Well its not negative so that's good.

39.2×10^10

If its negative you will have to go left if positive you need to go right.

When doing Scientific Notation you need to found how many zeros there are. Then put them in to to this formula.

----- × 10 ^ (exponent of whatever exponent)

Ex: 3200 in scientific notation

3.2×10^2

Your answer is 39.2×10^10 or second line.
lkwkn
Hey its just
3.9 x 10^12

Have a nice day, please mark brainliest! 
Also- Scientific notation is actually really easy! just move the zero and count them as you go!