Answer:
9.99
Step-by-step explanation:
Well what is 180-54-54 then you will have your answer because any triangle or straight line always equals 180
Remember that cos is just a translation of sin and vice versa.
So:
Sin(x) = Cos(90 - x)
Cos(x) = Sin(90 - x)
Therefore, to answer your question:
Cos(19) = Sin(90 - 19)
= Sin(71)
It should be 4 since it is rise over run so it should be 4/1 and that equals positive 4
