Answer= c
In this case you've got to place the vector from the origin, so you have to get the difference from both points (x2-x1) and (y2-y1)
So you get that the vector from the origin is (18,-7)
Know you know the vector v is three times the vector u, so you multiply three times the vertex, but remember the vector v goes int he opposite direction, so the vector v from origin the the terminal point is (-54, 21)
5. 2430 because in a trapezoid 2 if the lengths are the same and 2 are different, so you do 9*9*5*6=2430
1672 i think im not sure tho but the one you choose is to much
Answer:15
Step-by-step explanation:because we will 180-(120+45)