Correct Answer:
A. 5
The correct answer is 5.
- The additive inverse of a number is the number that, when added to the original number, results in a sum of zero. It is essentially the number with the opposite sign.
- For the number –5, if we add 5 to it (–5 + 5), the result is 0.
- Therefore, 5 is the additive inverse of –5.
- Option (B) O (zero) is the additive identity, not the inverse.
- Option (C) (1/5.) is the multiplicative inverse of 5, not the additive inverse of –5.
- Option (D) -55 is an incorrect value.
Understanding additive inverses is a basic concept in number theory.