Ответ:

а) \(\sqrt{0.25\cdot0.09\cdot16}=\sqrt{0.25}\cdot\sqrt{0.09}\cdot\sqrt{16}=0.5\cdot0.3\cdot4=0.6\).

б) \(\sqrt{36\cdot0.0025\cdot3.24}=\sqrt{36}\cdot\sqrt{0.0025}\cdot\sqrt{3.24}=6\cdot0.05\cdot1.8=0.54\).

в) \(\sqrt{2.25\cdot49\cdot0.16}=\sqrt{2.25}\cdot\sqrt{49}\cdot\sqrt{0.16}=1.5\cdot7\cdot0.4=4.2\).

г) \(\sqrt7\cdot\sqrt{\frac35}\cdot\sqrt{1\frac{8}{27}}=\sqrt{7\cdot\frac35\cdot\frac{35}{27}}=\sqrt{\frac{49}{9}}=\frac73\).

Ответ: а) 0,6; б) 0,54; в) 4,2; г) \(\frac73\).