Ответ:

  1. в) \(\sqrt{\frac{9}{49}}-1=\frac{3}{7}-1=\frac{3}{7}-\frac{7}{7}=-\frac{4}{7}\).
  2. г) \(\frac{4}{\sqrt{256}}-\frac{1}{\sqrt{64}}=\frac{4}{16}-\frac{1}{8}=\frac{1}{4}-\frac{1}{8}=\frac{2}{8}-\frac{1}{8}=\frac{1}{8}\).
  3. д) \(2\sqrt{0.0121}+\sqrt{100}=2\cdot0.11+10=0.22+10=10.22\).
  4. е) \(\frac{\sqrt{144}}{6}+\sqrt{2.89}=\frac{12}{6}+1.7=2+1.7=3.7\).

Ответ: в) \(-\frac{4}{7}\); г) \(\frac{1}{8}\); д) \(10,22\); е) \(3,7\).