Answer:
The answer would be 1.33 x [tex]10^{4}[/tex]
Step-by-step
1.28 x [tex]10^{4}[/tex] = 12800
5 x [tex]10^{2}[/tex] = 500
12800 + 500 = 13300
13300 = 1.33 x [tex]10^{4}[/tex] in scientific notation
Hope this helps:)
Sorry, I got the wrong answer earlier but I fixed it:)
