How do you evaluate #abs31-abs(-51)+82#?
1 Answer
Dec 3, 2016
Explanation:
The
#color(blue)"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# since 4 and - 4 are both 4 units from zero.
#rArr|31|-|-51|+82#
#=31-51+82# Evaluate the expression from left to right.
#=-20+82=62#
