For this case we must find an expression equivalent to:
[tex]8.4 * 10 ^ 2 =\\8.4 * 100 =[/tex]
We must run the decimal two spaces to the right, then:
[tex]8.4 * 100 =\\840[/tex]
If we run a space on the right we have 84, so when running two spaces on the right we have: 840
Thus, 8400 is an expression equivalent to [tex]8.4 * 10 ^ 2[/tex]
Answer:
840
