Answer :
[tex]\frac{8-11}{\sqrt{\frac{25}{121}}}=\frac{-3}{\sqrt{\frac{25}{121}}}=(-3):\sqrt{\frac{25}{121}}=(-3):\frac{\sqrt{25}}{\sqrt{121}}=(-3):\frac{5}{11}=(-3) \cdot \frac{11}{5}=\\ \\ = -\frac{33}{5}=-6\frac{3}{5}[/tex]
