Answer:
11,460 years
Explanation:
The age of the bone would be approximately 11,460 years.
The half-life of a substance represents the time required for one-half of an amount of that substance to decay or disintegrate.
The half-life of C-14 is approximately 5,730 years. If the ancient bone had decayed for 2 half-lives it means that the bone had decayed for 5,730 x 2 = 11,460 years.