Soda is bad for you mainly because its unhealthy. Soda can cause holes in your bones. About 70% kids drink soda.
Antisocial behavior, risk taking behavior, impassivity and aggression
Answer:
sin a=-4/5
we have sina=perpendicularp/hypotenuseh=-4/5
let p=-4k
h=5k
by Pythagoras theorem
h²=p²+b²
(5k)²=(-4k)²+b²
25k²-16k²=b²
(3k)²=b²
b=√(3k)²=3k
now
cos a =b/h=3k/5k=3/5