\[\boxed{\text{158\ (158).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[a\] | \[- 6\] | \[6\] | \[- 0,4\] | \[0,4\] | \[3\] | \[0,03\] | \[\frac{1}{2}\] | \[- 1\] | \[0\] |
---|---|---|---|---|---|---|---|---|---|
\[10a^{2}\] | \[360\] | \[360\] | \[1,6\] | \[1,6\] | \[90\] | \[0,009\] | \[2,5\] | \[10\] | \[0\] |
\[(10a)^{2}\] | \[3600\] | \[3600\] | \[16\] | \[16\] | \[900\] | \[0,09\] | \[25\] | \[100\] | \[0\ \ \] |
Решение.
\[(10 \cdot 6)^{2} = 60^{2} = 3600.\]
\[10 \cdot 6^{2} = 10 \cdot 36 = 360\text{.\ }\]
\[\left( 10 \cdot ( - 6) \right)^{2} = ( - 60)^{2} = 3600.\]
\[10 \cdot ( - 6)^{2} = 10 \cdot 36 = 360.\ \]
\[\left( 10 \cdot ( - 0,4) \right)^{2} = ( - 4)^{2} = 16.\]
\[10 \cdot ( - 0,4)^{2} = 10 \cdot 0,16 = 1,6.\ \]
\[\left( 10 \cdot (0,4) \right)^{2} = (4)^{2} = 16.\]
\[10 \cdot (0,4)^{2} = 10 \cdot 0,16 = 1,6.\ \]
\[(10 \cdot 3)^{2} = (30)^{2} = 900.\]
\[10 \cdot 3^{2} = 10 \cdot 9 = 90.\ \]
\[\left( 10 \cdot (0,03) \right)^{2} = (0,3)^{2} = 0,09.\]
\[10 \cdot (0,03)^{2} = 10 \cdot 0,0009 =\]
\[= 0,009.\ \]
\[\left( 10 \cdot \left( \frac{1}{2} \right) \right)^{2} = (5)^{2} = 25.\]
\[10 \cdot \left( \frac{1}{2} \right)^{2} = 10 \cdot \frac{1}{4} = \frac{10}{4} = 2,5.\ \]
\[\left( 10 \cdot ( - 1) \right)^{2} = ( - 10)^{2} = 100.\]
\[10 \cdot ( - 1)^{2} = 10 \cdot 1 = 10.\ \]
\[(10 \cdot 0)^{2} = (0)^{2} = 0.\]
\[10 \cdot 0^{2} = 0.\ \]
\[\boxed{\text{158.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[Пусть\ \text{x\ }км^{3}\ воды\ содержится\ \]
\[в\ озере\ Байкал,\ \]
\[(x - 22\ 762)\ км^{3} - воды\ в\ \]
\[Ладожском\ озере,\]
\[(x - 22\ 762 - 543)\ км^{3} - воды\ \]
\[в\ Онежском\ озере.\]
\[\ Общий\ объем\ воды\ в\ трех\ \]
\[озерах\ составляет\ 24\ 733\ км^{3}.\]
\[Составим\ уравнение:\]
\[x + x - 22\ 762 + x - 22\ 762 - 543 = 24\ 733\]
\[3x - 46\ 067 = 24\ 733\]
\[3x = 24\ 733 + 46\ 067\]
\[3x = 70\ 800\]
\[x = 23\ 600\ \left( км^{3} \right) - воды\ в\]
\[\ озере\ Байкал.\]
\[23\ 600 - 22\ 762 = 838\ \left( км^{3} \right) - \ \]
\[воды\ в\ Ладожском\ озере.\]
\[838 - 543 = 295\ \left( км^{3} \right) - \ воды\ \]
\[в\ Онежском\ озере.\]
\[Ответ:23\ 600\ км^{3};\ 838\ км^{3};\ \]
\[295\ км^{3}\text{.\ }\]