\[\boxed{\text{496\ (496).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[1)\ \sqrt{{0,4}^{2}} = |0,4| = 0,4.\]
\[2)\ \sqrt{( - 1,8)^{2}} = | - 1,8| = 1,8.\]
\[3)\ 2\sqrt{( - 15)^{2}} = 2 \cdot | - 15| =\]
\[= 2 \cdot 15 = 30.\]
\[4)\ 3\sqrt{{1,2}^{2}} = 3 \cdot |1,2| = 3 \cdot 1,2 =\]
\[= 3,6.\]
\[5)\ \sqrt{6^{4}} = |6^{2}| = 36.\]
\[6)\ \sqrt{( - 2)^{10}} = | - 2|^{5} = 2^{5} = 32.\]
\[7)\ 5\sqrt{( - 10)^{4}} = 5 \cdot | - 10|^{2} =\]
\[= 5 \cdot 100 = 500.\]
\[8) - 4\sqrt{( - 1)^{14}} = - 4 \cdot | - 1|^{7} =\]
\[= - 4.\]
\[9) - 10\sqrt{3^{6}} = - 10 \cdot |3^{3}| =\]
\[= - 10 \cdot 27 = - 270.\ \]