Answer:
So in scientific form 4000 miles will be equal to [tex]4\times 10^3miles[/tex]
Step-by-step explanation:
We have given that radius of earth is 4000 miles
4000 miles can be written as 4×1000
We have to written 4000 miles in scientific form
We know that 1000 can be written in scientific form as [tex]1000=10^3[/tex]
So [tex]4000miles =4\times 1000=4\times 10^3miles[/tex]
So in scientific form 4000 miles will be equal to [tex]4\times 10^3miles[/tex]