Question

At an elevation of 1221.4 feet, Lake Mead will hold 28,945,000 acre-feet of water. Which number is the best estimate of this amount of water?

3×10 6


2×10 7





2×10 7



3×10 7


2×10 8

Answer 1

`3 * 10^(7)`

Explanation:

At an elevation of 1221.4 feet, Lake Mead will hold 28,945,000 acre-feet of water.

So, the amount of water that is in the lake will be 28,945,000 acre-feet which is estimated to be 30000000 acre-feet of water.

Therefore, the number
`3 * 10^(7)` is the best estimate of this amount of water. (Answer)