Answer:
a = 3
Step-by-step explanation:
A number in scientific form is
a × [tex]10^{n}[/tex] ( where 1 ≤ a < 10 and n is an integer )
We require to express 6734 as a number between 1 and 10 , that is
6.734
To get the number back to what it is requires it to be multiplied by 1000
6734 = 6.734 × 1000 = 6.734 × [tex]10^{3}[/tex]
