Answer:
[tex]3.844 \cdot 10^5 km[/tex], where a = 3.844 and b=5.
Explanation:
A number can be written in scientific notation as follows:
[tex]a \cdot 10^b[/tex]
where it means that the number 'a' is multiplied by 10 to the power b.
Practically speaking, it means that in order to write a number in scientific notation, we must move the dot to the left by 'b' positions. In this problem, we have the following number:
384400 km
Therefore, we have to move the dot to the left by 5 position, so we get:
[tex]3.84400 \cdot 10^5 km[/tex]
and we can get rid of the '00' since they are meaningless:
[tex]3.844 \cdot 10^5 km[/tex]
