a factory builds a new warehouse that is approximately 1.28 x 10^5 square feet. Later, they add on 1.13 x 10^3 more square feet for offices. Use scientific notation to write the total size of the new building. Write the answer in scientific notation. show your work
a 1.2913 x 10^2 square feet
b 129,130 square feet
c 129.13 x 10^2 square feet
d 1.2913 x 10^5 square feet
The total size of the new building can be calculated by adding the area of the warehouse (1.28 x 10^5 square feet) to the area added for offices (1.13 x 10^3 square feet).
1.28 x 10^5 + 1.13 x 10^3 = 1.28 x 10^5 + 0.00113 x 10^5 = (1.28 + 0.00113) x 10^5 = 1.28113 x 10^5
Thus, the total size of the new building is 1.28113 x 10^5 square feet, which is option d.