I just had a test on vectors so I feel your pain! Explained in the picture above. Hope it helps C:
Edit: in picture I say tantheta = x/y sorry I meant y/x
Answer:c>2
Step-by-step explanation:
-6c (divide) (-6) > -12 (divide) (-6)
c>-12 (divide) (-6)
c>12 (divide) 6
c> 2
Answer: y=1
replace y in the second equation you get x
then replace x in anh equation and you'd get get y