contestada

What is the value of the expression |a + b| + |c| when a = –3, b = 7, and c = –15?

A.
19

B.
25

C.
5

D.
–11

Respuesta :

gmany
We know:
[tex]|a|= \left\{\begin{array}{ccc}a&if\ a \ \textgreater \ 0\\0&if\ a=0\\-a&if\ a \ \textless \ 0\end{array}\right\\\\|2|=2\\|0|=0\\|-3|=3[/tex]

[tex]|a+b|+|c|[/tex]
substitute a = -3; b = 7; c = -15
[tex]|-3+7|+|-15|=|4|+15=4+15=19[/tex]

Otras preguntas