Slope of line l (m1)=5
Slope of line w(m2)=-1/5
Since,m1×m2=-1 , line 'l' and 'w' are perpendicular.
Since line 'k' doesn't intersect line 'l' ,they must be parallel b'coz they are in the same plane as well.
Here, 'l' is perpendicular to 'w' and parallel to 'k'....so w and k must be perpendicular to each other.
It can be proven:
Since l and k are parallel, their slopes are equal.
So, slope of k (m3)=5
Since m3×m2=-1 ,w and k are perpendicular.
Hence, angle between w and k is 90°
Answer:
:/
Step-by-step explanation:
2. Put the question into a calculator. Really easy when you know how.
Sarah's expression is correct because for every hour you get 9 dollars so 9(1) is 9 dollars for one hour. Then for two Hours it would be 9(2) which equals 18.
Probably infinite depending on if u mean how many factors it has
