Perform the elementary operation \( 3 E_{1}+E_{2} \rightarrow E_{2} \) \( \left\{\begin{array}{l}a+2 b+2 c=8 \\ -3 a-2 b+3 c=11 \\ 7 a+4 b-6 c=13\end{array}\right. \)

Simplify. \[ \frac{x^{2} y^{6}}{x^{3} y^{6}} \]

Graph the solution set of the following system of inequalities. \[ \begin{array}{l}x+y \leq 4 \\ y \geq x^{2}-3\end{array} \]

Resolver \( \left\{\begin{aligned} x+2 y+z & =4 \\ 3 x+z & =2 \\ x-y+z & =7\end{aligned}\right. \)

Which of the following equations represents a line that passes through the points \( (-4,11) \) and \( (6,-9) \) ? \[ \begin{array}{l}\text { I. } y=-2 x+3 \\ \text { II. } y+9=-2(x-9) \\ \text { Answer } \\ \text { Neither } \\ \text { II only }\end{array} \] I only I II

Simplify the expression: \( -4 m+4 m-9 m-8 m-6 m \) Submit