A city has two water towers. one tower holds 7.35 x 10^5 gallons of water and the other tower holds 9.78 x 10^5 gallons of water. what is the combined water capacity in Scientific Notation?

To find the combined water capacity, we add the two amounts together:

7.35 x 10^5 + 9.78 x 10^5 = 17.13 x 10^5

Now we can simplify this by adding the coefficients:

17.13 x 10^5 = 1.713 x 10^6

Therefore, the combined water capacity in Scientific Notation is 1.713 x 10^6 gallons.