[tex]\bold{1.} \ (-\frac{3}{11}\cdot 6,5-(1,1)^2):2=-\frac{3}{11}\cdot \frac{13}{2}:2-(\frac{11}{10})^2:2=\\=-\frac{39}{22}\cdot\frac{1}{2}-\frac{121}{100} \cdot \frac{1}{2}=-\frac{39}{44}-\frac{121}{200}=\boxed{-\frac{3281}{2200}}; \\ \\ \bold{2.} \ (2,4+36-2,6):2=(38,4-2,6):2=35,8:2=\boxed{17,9}.[/tex]
