5 Which property of real numbers is illustrated by the
equation - 3 + 3 = 0?
1) additive identity
2) commutative property of addition
associative property of addition
4) additive inverse

Additive inverse

Step-by-step explanation:

Every real number has an additive inverse, i.e., for every real number x, there exists a real number y such that

Obviously, y is simply -x.

So, in this case, we can see that 3 and -3 are additive inverse, because they give 0 when summed.

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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