Question

In right triangle ABC, ∠A and ∠B are complementary angles and sin A = 89. What is cos B?

817−−√17

89

17−−√9

17−−√8

Answer 1

this doesnt pertain to music

Answer 2

Why is your name "239iabusekids"?

Answer 3

Complementary angles are two angles that add up to a measure of 90
So, m<a+m<b=90
89+m<b=90
90-89=m<b
1=m<b
So the measure of angle B is 1
Therefore none of those answers are correct.