Final answer:
The number -513 has one third root: -9.
Step-by-step explanation:
The number -513 has one third root. The cube root of -513 is -9 because (-9) * (-9) * (-9) = -513. When finding the cube root, we are looking for a number that, when multiplied by itself three times, gives us the original number. In this case, -9 is the only number that satisfies that condition.