The us postal service handles 170000000000 pieces of mail each year. This is 40% of the world's total. How many pieces of mail a
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Answer:
The sum of angles on a straight line is 180 degrees.
Therefore,
Answer: They are inverses of each other
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Explanation:
We'll need to compute h(f(x)) and f(h(x)) to see if we get x each time.
and,
Both composite functions lead to x each time.
The equations h(f(x)) = x and f(h(x)) = x being true means each function is the inverse of the other.