Question

The area of the East China Sea is 1.249 × 10^6 km^2. The area of the Pacific Ocean is 1.6525 × 10^8 km^2. Find the total area. Write the final answer in scientific notation with the correct number of significant digits.

Answer 1

The total area is 1.665 × 10^8 km².

Step-by-step explanation:

To find the total area, we need to add the areas of the East China Sea and the Pacific Ocean.

The area of the East China Sea is 1.249 × 10^6 km², and the area of the Pacific Ocean is 1.6525 × 10^8 km².

Adding these two areas together, we get:

1.249 × 10^6 km² + 1.6525 × 10^8 km²

= 1.665 × 10^8 km²