How do you evaluate abs31-abs(-51)+82|31|−|−51|+82?
1 Answer
Dec 3, 2016
Explanation:
The
color(blue)"absolute value"absolute value is always positive. This is because it gives a measure of how far a number is from zero, irrespective of it's sign.That is
|4|=|-4|=4|4|=|−4|=4 since 4 and - 4 are both 4 units from zero.
rArr|31|-|-51|+82⇒|31|−|−51|+82
=31-51+82=31−51+82 Evaluate the expression from left to right.
=-20+82=62=−20+82=62
