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calculati media aritmetica a nr. 5 si 8

Răspuns :

[tex]\boxed{M_a= \frac{a+b}{2} } \\ \\ M_a= \frac{5+8}{2}= \frac{13}{2} =\fbox{6,5}[/tex]
ma = ( a + b) / 2, formula
ma ( 5,8) = ( 5 + 8) / 2
               = 13 / 2
               = 6,5,  / = supra