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14 April, 10:41

An inequality is shown below.

|3x+9|≥36

Which values of x makes the expression true.

a) x≤-15 or x≥9

b) x≥-15 or x≤9

c) x≥-9 or x≤15

d) x≤-9 or x≥15

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Answers (1)
  1. 14 April, 12:11
    0
    You need to break this up into 3x+9≥27 to get x≥9 and 3x+9≤-36 to get x≤-15.

    The correct answer would be a
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