9c + 1 = 10
= 9c = 10 - 1
= 9c=9
=c=9/9
= c=1
so far i think you have the right thing going for you just remember soh cah toh
step-by-step explanation:
sine over hypotenuse
cosine equals adjacent
tangent over hypotenuse
the correct answer is a.) bc< mn 5 stars if this you : )