TRIGONOMETRY Find the magnitude and the direction of the resultant vector

Step 1:
Write the given vectors
[tex]\begin{gathered} \bar{V}\text{ = ( 10 , 9 )} \\ \bar{W}\text{ = (-6 , -2 )} \end{gathered}[/tex]Step 2
Resultant vector = [ 10 + (-6) , 9 + (-2) ]
= ( 4 , 7 )
Resultant vector = 4i + 7j
Step 3
[tex]\begin{gathered} \text{Magnitude = }\sqrt[]{4^2+7^2} \\ \text{Magnitude = }\sqrt[]{16\text{ + 49}} \\ \text{Magnitude = }\sqrt[]{65} \\ \text{Magnitude = 8.1} \end{gathered}[/tex]Step 4:
[tex]\begin{gathered} \text{Direction }\theta=tan^{-1}(\frac{4}{7}) \\ \text{Direction = 29.7} \end{gathered}[/tex]