Respuesta :

Answer: 5.49*10^-4

Step-by-step explanation:

4.9*10^5+0.0005

=4.9 *10^5+5*10^-4

= 4.9*10^-5+50*10^-3

= (4.9+50) * 10^-5

=54.9*10^-5

= 5.49*10^-4