Sofia B.

asked • 12/12/18

Algebra and sets math problem

Suppose A = {x |x ≤ −2, x ≥ 3} and B = {x | −1 ≤ x < 5}. Which statement is true?

  1. A.-A ∪ B is all real numbers
  2. B.-A ∩ B = ∅
  3. C.-A' = {x | −2 ≤ x ≤ 3}
  4. D.-B ⊆ {x | x ≤ 5}


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