Rewrite the following expression without using an absolute value sign. |A-52|≤ 2

Question

Teacher gave a hint to "think margin of error"

Answer 1

|A - 52| ≤ 2

Assume A - 52 is positive

A - 52 ≤ 2

A ≤ 54

Assume A - 52 is negative

-(A - 52) ≤ 2

A - 52 ≥ -2

A ≥ 50

{A | 50 ≤ A ≤ 54}