SOLUTION: If |W| < 25 then A) W < 25 B) W > -25 C) W < 25 and W > -25 D) W &#8805; - 25 E) W &#8804; - 25

Algebra ->  Proofs -> SOLUTION: If |W| < 25 then A) W < 25 B) W > -25 C) W < 25 and W > -25 D) W &#8805; - 25 E) W &#8804; - 25      Log On


   

Question 893094: If |W| < 25 then
A) W < 25
B) W > -25
C) W < 25 and W > -25
D) W ≥ - 25
E) W ≤ - 25
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Rule: If |x| < k for some positive number k, then -k+%3C+x+%3C+k

That's the same as saying x+%3C+k and x+%3E+-k (I don't recommend this way because it's a bit clunky compared to the first method)

So that's why |W| < 25 turns into W < 25 and W > -25