Answer:
The correct answer is 1.2913 x [tex]10^{5}[/tex] square feet.
Step-by-step explanation:
A factory builds a new warehouse that is approximately 1.28 x [tex]10^{5}[/tex] square feet = 128,000 square feet.
Later, they add on 1.13 x [tex]10^{3}[/tex] square feet = 1,130 square feet more for offices.
Thus the total size of the new building is given by 128000 + 1130 = 129130 square feet = 1.2913 x [tex]10^{5}[/tex] square feet.
Thus in scientific notation the total area of the factory is 1.2913 x [tex]10^{5}[/tex] square feet.