\[\boxed{\text{316\ (316).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[V = 48\ см^{3}:\]
\[h = \frac{48}{S};\ \ \ \ S = \frac{48}{h}.\]
\[S,\ см\] | \[16\] | \[48\ :8 = 6\] | \[240\] | \[48\ :4,8 = 10\] |
---|---|---|---|---|
\[h,\ см\] | \[48\ :16 = 3\] | \[8\] | \[48\ :240 = 0,2\] | \[4,8\] |
\[\boxed{\text{316.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[1)\ 3x + y = 1\]
\[y = 1 - 3x\]
\[2)\ 4x - 5y = 20\]
\[5y = 4x - 20\]
\[y = 0,8x - 4\]
\[3)\ (x - 4)^{2} + y^{2} = 0\]
\[y = 0;\ \ x = 4.\]
\[Точка\ (4;0).\]
\[4)\ |x + 1| + (y - 2)^{2} = 0\]
\[|x + 1| = 0\]
\[x = - 1.\]
\[y - 2 = 0\]
\[y = 2.\]
\[Точка\ ( - 1;2).\]
\[5)\ (x + 1)(y - 2) = 0\]
\[x = - 1;\ \ y = 2.\]
\[6)\ xy - 2x = 0\]
\[x(y - 2) = 0\]
\[x = 0;\ \ y = 2.\]