lasts= 1 hour 37 minutes
watched= 52 mins
<h3>to find:</h3>how many minutes left in the movie.
<h3>solution:</h3>to find the time left just find the difference.
<u>therefore</u><u>,</u><u> </u><u>there's</u><u> </u><u>4</u><u>5</u><u> </u><u>mins</u><u> </u><u>left</u><u> </u><u>in</u><u> </u><u>the</u><u> </u><u>movie</u><u>.</u>
Answer:
The matrixes are in the explanation box.
1. A mapping of (x,y,z) to (x,y,0)
2. Is a mapping of (x,y,z) to (-x,-y,z)
Step-by-step explanation:
We have the orthogonal projection onto the cy-plane to be a mapping of (x,y,z) to (x,y,0). Then we will have a transformation matrix that has the form below.
[1 0 0]
[0 1 0]
[0 0 1]
For the reflection in the z-axis,it is a reflection of (x,y,z) to (-x,-y,z). Our matrix will then have the form below
[-1 0 0]
[0 -1 0]
[0 0 1]
