Question

Evaluate -13 + |3.1 - 4.2|.

Answer 1

-13 + | -1.1 |

-13 + 1.1

= -11.9

Answer 2

-11.9

Answer 3

-11.9

Answer 4

@ Hero, |-x| = x is a false statement.
Counterexample: Let x = -1. Then |-x| = |-(-1)| = |1| = 1 which is not equal to the value of x, -1.

Answer 5

Directrix, you might want to read up on absolute value

Answer 6

@directrix, I agree with hero

Answer 7

Or maybe I should...

|x| = x

Answer 8

now i'm confused

Answer 9

It happens