B

9000101901

Level: 
B
Find the angle between two lines and round your answer to the nearest minute. \[ \begin{aligned}p\colon x& = 2 - t , & \\y & = 3t , \\z & = 1 ,\ t\in \mathbb{R} \\ \end{aligned}\qquad \qquad \begin{aligned}q\colon x& = 2s, & \\y & = 4s , \\z & = 1 - s,\ s\in \mathbb{R} \\ \end{aligned} \]
\(46^{\circ }22'\)
\(0^{\circ }\)
\(67^{\circ }18'\)
\(90^{\circ }\)

9000101903

Level: 
B
Given points \(A = [-1,0,3]\), \(B = [0,2,0]\), find the angle between the line \(AB\) and the line \(m\). \[ \begin{aligned}m\colon x& = 1 + 2t, & \\y & = -3t, \\z & = 1,\ t\in \mathbb{R} \\ \end{aligned} \] Round your answer to the nearest minute.
\(72^{\circ }45'\)
\(0^{\circ }\)
\(48^{\circ }15'\)
\(90^{\circ }\)

9000101904

Level: 
B
Find the angle between the \(x\)-axis and the line \(p\). \[ \begin{aligned}p\colon x& = 2 - t, & \\y & = 3t, \\z & = 1,\ t\in \mathbb{R} \\ \end{aligned} \] Round your answer to the nearest minute.
\(71^{\circ }34'\)
\(0^{\circ }\)
\(69^{\circ }17'\)
\(90^{\circ }\)