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4 March, 00:07

Which of the following must be true?

A If |y| = 25 then y = 25 and y = - 25

B If |t| = 40 then t = - 40 only

C If |c| = 75 then c = 75 only

D If |u| = - 40 then u = - 40 and u = 40

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Answers (1)
  1. 4 March, 00:26
    0
    The answer is C, when numbers or variables are between "|" (also called bars) it means to remove any negative symbols and think of it as a positive number. If the number is already positive you keep it a positive number.
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