Question

State a conjunction or disjunction equivalent to the open sentence |a – 9| ≤ 4. a – 9 ≥ 4 and a – 9 ≤ –4 a – 9 ≤ 4 or a – 9 ≥ –4 a – 9 ≥ 4 and a – 9 ≤ –4 a – 9 ≤ 4 and a – 9 ≥ –4