Question

I need help on finding the scientific notation for number 1

Answer 1

1. Total area of water = 352,000,000 + 9 * 10^6

= 352,000,000 + 9,000,000 = 361,000,000 = 3.61 * 10^8

Fraction of the surface covered by water = 3.61 * 10^8 / 5.1 * 10^8

= 3.61 / 5.1 = 0.707843 = 70.78 % to nearest hundredth of a percent.