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If |a| = 9, then which are the possible values of a?

A.
–9 or 9

B.
9 only

C.
–9 only

User Mkto
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2 Answers

4 votes

Answer: it's -9 or 9

Explanation:

User Jim Black
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6 votes
A. Because |_| always uses the positive value.
User Kris Adams
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