Ответ:
- \(0,3\sqrt{900}-\frac14\sqrt{64}=0,3\cdot30-\frac14\cdot8=9-2=7\).
- \(8\sqrt{\frac{20}{4}}-\sqrt{\frac{0,36}{0,01}}=8\sqrt5-\sqrt{36}=8\sqrt5-6\).
- \(\sqrt{0,64\cdot49}=\sqrt{31,36}=5,6\).
- \(\sqrt{34}\cdot\sqrt{26}=\sqrt{884}=2\sqrt{221}\).
- \(\sqrt{18}\cdot\sqrt2=\sqrt{36}=6\).
- \(\frac{\sqrt{20}}{\sqrt5}=\sqrt{\frac{20}{5}}=\sqrt4=2\).
Ответ: 1) 7; 2) \(8\sqrt5-6\); 3) 5,6; 4) \(2\sqrt{221}\); 5) 6; 6) 2.
