The Masses $m _ { i }$ Are Located at the Points

Short Answer

The masses $m _ { i }$ are located at the points $P _ { i }$ . Find the moments $M _ { x }$ and $M _ { y }$ and the center of mass of the system.
$$\begin{array} { l } m _ { 1 } = 4 , m _ { 2 } = 8 , m _ { 3 } = 11 \\P _ { 1 } ( 1,5 ) , P _ { 2 } ( 3 , - 2 ) , P _ { 3 } ( - 2 , - 1 )\end{array}$$