Answer:
the correct answer is A, thats when cos of ttheta is
9m+14=2m
9m-2m= -14
7m = -14
m= -2
to check: u need to chance the m to -2
9m - 2m= -14
9 × -2= -18
-2 × -2= -4
-18 - (-4)= -14
i think is right
Three and one hundred forty one hundredths <span />
Answer:
b both pairs of opposite sides are parallel
