Justinbieber1 Justinbieber1

12-08-2014
Mathematics

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Evaluate the expression when x = -2.5
1. -x 2. |x| + 3 3. |x| - 4
Help me please!!? D;

Respuesta :

Аноним Аноним

12-08-2014

[tex]x=-2.5\\\\-x=-(-2.5)=2.5\\\\|x|+3=|-2.5|+3=2.5+3=5.5\\\\|x|-4=|-2.5|-4=2.5-4=-1.5[/tex]

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