UNDATOINIEIO: Un sub e immerso in mare ed è soggetto a una pression edi \( 2,0 \mathrm{~atm} \). Il corpo del sub occupa un volume di 72 L La densità dell'acqua di mare è \( 1030 \mathrm{~kg} / \mathrm{m}^{3} \). Determina a quale profondità si trova il sub.

Find the exact value of each of the remaining trigonometric functions of \( \theta \) \[ \sin \theta=\frac{12}{13}, 90^{\circ}<\theta<180^{\circ} \]

Determine which of the given points lies on both of the lines in the system of equations by substituting each point into both equations. \[ \begin{array}{r}x-y=-6 \\ 2 x+y=-3\end{array} \] Answer \( (-2,1),-1) \)

What value of \( c \) is a solution to this equation? \( 1=-\frac{c+6}{3} \) \( c=-9 \quad c=9 \)

Find the exact value of each of the remaining trigonometric functions of \( \theta \) \[ \sin \theta=-\frac{1}{6} \text { and } \tan \theta>0 \]

6. \( y=\left\{\begin{array}{l}x+5 \text { if } x \leq 1 \\ 2-3 x \text { if } x>1\end{array}\right. \)