Вычислить: 1) $$0,2\sqrt{4900}$$ 2) $$100\sqrt{0,04} - \frac{1}{17}\sqrt{289}$$ 3) $$\frac{7}{8}\cdot\sqrt{1\frac{15}{49}}$$ 4) $$\sqrt{361}-10\sqrt{2,89}$$ 5) $$3,6\cdot\sqrt{0,25} + \frac{1}{32}\cdot\sqrt{256}$$ 6) $$8\cdot\sqrt{5\frac{1}{16}} + 3$$

1. $$0,2\sqrt{4900} = 0,2 \cdot 70 = 14$$
2. $$100\sqrt{0,04} - \frac{1}{17}\sqrt{289} = 100\cdot0,2 - \frac{1}{17}\cdot17 = 20 - 1 = 19$$
3. $$\frac{7}{8}\cdot\sqrt{1\frac{15}{49}} = \frac{7}{8}\cdot\sqrt{\frac{64}{49}} = \frac{7}{8}\cdot\frac{8}{7} = 1$$
4. $$\sqrt{361}-10\sqrt{2,89} = 19 - 10\cdot1,7 = 19 - 17 = 2$$
5. $$3,6\cdot\sqrt{0,25} + \frac{1}{32}\cdot\sqrt{256} = 3,6\cdot0,5 + \frac{1}{32}\cdot16 = 1,8 + 0,5 = 2,3$$
6. $$8\cdot\sqrt{5\frac{1}{16}} + 3 = 8\cdot\sqrt{\frac{81}{16}} + 3 = 8\cdot\frac{9}{4} + 3 = 2\cdot9 + 3 = 18 + 3 = 21$$

Ответ: 1) 14; 2) 19; 3) 1; 4) 2; 5) 2,3; 6) 21