Answer:
i am not 100% sure but i believ the answer is C i hope im not too late
Step-by-step explanation:
$22 - $4 (for the movie) = $18.
$18 / $6 (per game) = 3 games
We know that
sin²x+cos²x=1
so
clear cos x
cos x=(+/-)√[1-sin²x]
in this problem
<span>Angle 0 is in quadrant 1 -----> cos o and sin o are positive
</span>sin o=2/5
cos x=√[1-(2/5)²]----> cos o=√[1-4/25]----> cos o=√[21/25]---> cos o=√21/5
the answer is
cos o=√21/5
