Răspuns:
Explicație pas cu pas:
5.
[tex]x=(\sqrt{\frac{49}{3} } -\frac{4\sqrt{3} }{3} )\cdot 2\sqrt{3} =\sqrt{3} \cdot 2\sqrt{3} =6[/tex]
[tex]y=(\frac{2}{\sqrt{5} } +\frac{8}{5\sqrt{5} } )\cdot \sqrt{125} =\frac{18}{5\sqrt{5} } \cdot \sqrt{125} =18[/tex]
Media aritmetica= (18+6):2=12 Dragos
6.
36:4=9 baieti
36-9=27 fete
