3) Para mantener en posición vertical un poste de la luz se emplea un cable de 15 m de largo que va desde lo alto del poste a una estaca clavada a 9 m de distancia de la base del poste. ¿Qué altura tiene el poste?

Find the \( y \)-intercept and the slope of the line. \[ 9 x+3 y=-3 \] Write your answers in simplest form. slope:

\( \frac{dx}{dy}=\frac{5x-y}{2x+2y} \)

Find the domain of the function. \[ v(x)=\sqrt{6 x+30} \] Write your answer using interval notation.

\begin{tabular}{l} Which of the following changes are likely to occur \\ with menopause? \\ Hot flashes \\ Rising cholesterol levels \\ Declining bone mass \\ Increased risk of cardiovascular disease \\ All of the following are likely to occur with menopause \\ \hline\end{tabular}

What is the solution to the inequality \( 2 m-4 \leq 3(2 m+4) \) ? \( \begin{array}{ll}\text { (1) } m \leq-2 & \text { (3) } m \leq-4 \\ \text { (2) } m \leqq-2 & \text { (4) } m \geq-4\end{array} \)