Which equation is correct ?

Answer:
cos h° = x ÷ z
Step-by-step explanation:
We are given a right triangle ABC which is right angled at C. Also given that ∠A is h°
now with reference to the ∠A , the opposite side is y
the adjacent side is x
and the hypotenuse is always fixed as z
Now we are going to use the cos formula to ∠A which is h°
Our cosine function is defined as
[tex]Cos\theta = \frac{Adjacent}{Hypotenuse}[/tex]
[tex]Cosh[/tex]°=[tex]\frac{x}{z}[/tex]
Hence the option D) is correct