Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

Option D is correct.

Step-by-step explanation:

The additive inverse of a number is the same number with the negative sign

i.e. if we have a number 1 then it's additive inverse would be -1

So if we add both the number and its additive inverse the answer would be zero.

1+(-1) = 0

So, Option D their sum is always zero is correct.

Option D

Their sum is always zero

Step-by-step explanation:

Given any number x, the additive inverse of x is -x.

For example, the additive inverse of 3 is - 3, the additive inverse of 2.2 is -2.2.

In this way, note that adding a number with the additive inverse of this number will always result in the number zero.

Therefore, the correct option is option D