Answer:
idk
Step-by-step explanation:
L
1.63
4.89 divided by 3 = 1.63
c= -20h + 90
cos(O) = 39 / 89
Given:
ΔOPQ, where
∠Q=90°
PO = 89
OQ = 39
QP = 80
cosine of ∠O?
cos(O) = Adjacent / Hypotenuse
