Answer:
see below
Step-by-step explanation:
cos(420°) = cos 60 = 1/2
sin(450°) = sin 90 = 1
120 = 2x + x
120 = 3x
120/3 = x
40=x <- Solved for how many cds april has.
Since amy has twice as many cds, she would have 80 cds
8d = -56
Divide both sies by 8:-
d = -56/8
d = -7 (answer)
Answer:
perpendicular
Step-by-step explanation:
They form a 90 degree angle