To simplify the number 0.0000000529177, we can round it for approximation purposes.
Looking at the digits after the decimal point:
- The first few digits are 0529177.
- The second significant figure is 5, and since the following digit is a 2, we can round down.
Thus, we can approximate the value to be around 0.00000005.
Therefore, the best approximation from the given options is:
0.00000005