Served as the scholarship chairman for my fraternal organization. In my position, I utilized my time on the side to tutor / mentor younger members of the organization in the field of mathematics.
Convert the following radian measures to degrees.$$-\frac{13 \pi}{6}$$
Solve.Choose the equation (s) that has $(2,1,-4)$ as a solution.$$A. x+y+z=-1$$$$B. x-y-z=-3$$$$C. 2 x-y+z=-1$$$$D. -x-3 y-z=-1$$
Solve.Use the result of Exercise 1 to determine whether $(-1,3,1)$ is a solution of the system below. Explain your answer.$$\left\{\begin{aligned}x+y+z &=3 \\-x+y+z &=5 \\x+2 y-3 z &=2\end{aligned}\right.$$
Solve.Use the result of Exercise 2 to determine whether $(2,1,-4)$ is a solution of the system below. Explain your answer.$$\left\{\begin{array}{l}{x+y+z=-1} \\{x-y-z=-3} \\{2 x-y+z=-1}\end{array}\right.$$
Solve each system. See Examples I through $5 .$$$\left\{\begin{aligned}x+y &=3 \\2 y &=10 \\3 x+2 y-3 z &=1\end{aligned}\right.$$
