б) \( \left\{\begin{array}{l}(x+3)^{2}+(2 y+1)^{2}=x^{2}+4 y^{2}+16 \\ 3 y-7 x=16\end{array}\right. \) 39.20. а) \( \left\{\begin{array}{l}(3 a-2 b)(2 a+5 b)=0, \\ 5 a-4 b+2=0\end{array}\right. \) б) \( \left\{\begin{array}{l}(a+2 b+1)(3 a-4 b-2)=0 \\ 5 b-2 a-8=0\end{array}\right. \) 39.21. а) \( \left\{\begin{array}{l}(2 x-3 y)^{2}-(5 x+y)^{2}=0 \\ 5 x-2 y=1\end{array}\right. \) б) \( \left\{\begin{array}{l}(x+4 y)^{2}-(3 x-y)^{2}=0 \\ 3 x-7 y=1\end{array}\right. \)

Verifique se a equação abaixo é ou não é uma proporção \( \frac{2-2 x}{3 x}=-\frac{1}{3} \)

Find the \( x \) - and \( y \)-intercepts of the graph of the equation. Do not graph the line. \[ \begin{array}{l}7 x+5 y=35 \\ x \text {-intercept } \quad(x, y)=(\square) \\ y \text {-intercept } \quad(x, y)=(\square)\end{array} \]

Use the point-slope form to write an equation of the line with the given slope and point. Then write the equation in slope-intercept form. slope 4 , passes through \( (4,6) \)

1) \( y=6 x \)

Show A and Show B are two television shows. The number of eplsodes of each show are consecutive integers whose sum is 233 . If there are more episodes of Show B, how many episodes of each were there? Show A Show B episodes Submit Answer