Решебник по математике 6 класс Мерзляк ФГОС Задание 214

\[\boxed{\mathbf{214\ (214)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]

\[1)\ 0,4 = \frac{4}{10} = \frac{2}{5}\]

\[2)\ 0,5 = \frac{5}{10} = \frac{1}{2}\]

\[3)\ 0,12 = \frac{12}{100} = \frac{3}{25}\]

\[4)\ 0,84 = \frac{84}{100} = \frac{21}{25}\]

\[5)\ 0,16 = \frac{16}{100} = \frac{4}{25}\]

\[6)\ 0,59 = \frac{59}{100}\]

\[7)\ 0,128 = \frac{128}{100} = \frac{16}{125}\]

\[8)\ 0,96 = \frac{96}{100} = \frac{24}{25}\]

\[9)\ 0,2348 = \frac{2348}{10000} = \frac{587}{2500}\]

\[10)\ 0,975 = \frac{975}{1000} = \frac{39}{40}\]

\[\boxed{\mathbf{214}\mathbf{.}}\]

\[EC - биссектриса:\]

\[\angle DEC = \angle CEK = 23{^\circ}.\]

\[\angle KEF = 90 - 23 \cdot 2 =\]

\[= 90 - 46 = 44{^\circ}.\]

\[Ответ:44{^\circ}.\]