Question

What is 400,000 times 200 in scientific notation

Answer 1

4 X 10^3

Explanation:

Answer 2

If you move the decimal point left until it is just to the right of the most-significant digit, the number of places you moved it is the power of ten that your new number is multiplied by.

`400,000=4* 10^(5)\\200=2* 10^(2)`

Then multiplication can proceed in the usual way, taking into account the rules of exponents.

`4\cdot 10^(5)* 2\cdot 10^(2)=8\cdot 10^((5+2))\\\\=8\cdot 10^(7)`