д) −√484 : √(1 23/121) =

\(\sqrt{484}=22\).

\(1\frac{23}{121}=\frac{144}{121}\), поэтому \(\sqrt{1\frac{23}{121}}=\frac{12}{11}\).

\(-22:\frac{12}{11}=-22\cdot\frac{11}{12}=-\frac{121}{6}\).

Ответ: \(-\frac{121}{6}\)