Answer:
x = 4
Step-by-step explanation:
Cross multiply:
21*2 = 14(x - 1)
42 = 14x - 14
14x = 56
x = 4
Just divide the miles they traveled by how long it took them
Answer:
yes
Step-by-step explanation:
Because the point lie on the plane they are coplanar
Yes, it would be 78 degrees.
These are vertical angles, which always are the same measure. When a lone intersects another, there is always 2 pairs of vertical angles.
Hope this helps! :D
Keep up the good work, you're correct!
