B

9000101901

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

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.
\(71^{\circ }34'\)
\(0^{\circ }\)
\(69^{\circ }17'\)
\(90^{\circ }\)

9000101907

Level: 
B
The general plane \(\alpha \) has the equation \[ \alpha \colon 3z - 4 = 0 \] and the plane \(\beta \) has a normal vector \(\vec{n} = (0;0;1)\). Find the angle between \(\alpha \) and \(\beta \) and round your answer to the nearest degree.
\(0^{\circ }\)
\(30^{\circ }\)
\(45^{\circ }\)
\(90^{\circ }\)