Răspuns :

EsteraAntalid

[tex]a) \:ma = \frac{8 - 72}{2} = \frac{ - 64}{2} = - 32 \\ b) \: ma = \: \frac{ - 20 - 44}{2} = \frac{ - 64}{2} = - 32 \\ c)ma= \: \frac{ - 5 - 15}{2} = \frac{ - 20}{2} = - 10[/tex]

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