Question

MEDAL + FAN FOR RIGHT ANSWER

Evaluate: |2.8 - k| + 3.4 if k = 8.1

Answer 1

this is substitution.

So absolute value signs turn everything inside positive.

So

2.8-8.1 = -5.3 but with absolute value is it 5.3 (because it needs to be positibe)
Now do the outside, 5.3+3.4 = 8.7

Answer 2

wow u made it so easy thank you so mych

Answer 3

Wait, do you know how it should be positive?

Answer 4

yes thos line mean u make everything into positive

Answer 5

haha no problem, glad to help, but it is positive because if you plug it in on a graphing calculator, you will see why.