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

Answer 1

there are none

Answer 2

then my school is a liar xD