Answer :
Answer : The number in scientific notation will be, [tex]1.6456\times 10^3[/tex]
Explanation :
Scientific notation : It is defined as the way or representation of expressing the number that are too big or too small that is written in the decimal form. That means always written in the power of 10 form.
For example : 8000 is written as, [tex]8\times 10^3[/tex] and 0.0008 is written as, [tex]8\times 10^{-4}[/tex]
As we are given that the number is, 1645.6
This number is written in scientific notation as, [tex]1.6456\times 10^3[/tex]
Therefore, the number in scientific notation will be, [tex]1.6456\times 10^3[/tex]