Respuesta :

Inverse of Cosine(16/19)

Answer:

The value of x° = 32.6

Step-by-step explanation:

To find the value of x, we have to apply the trigonometric formula;

SOH CAH TOA

sin Ф = opposite / hypotenuse

cos Ф = adjacent  /   hypotenuse

tan Ф = opposite  / adjacent

From the diagram above; adjacent is given to be 16 and hypotenuse is given to be 19, since what we have is adjacent and hypotenuse, then the best formula to use is cos Ф

cos Ф = adjacent / hypotenuse

Ф=x°     adjacent=16 and hypotenuse =19

cos x°    =   16/19

cos x° =0.8421

To get the value of x°, we will take [tex]cos^{-1}[/tex] of both-side

[tex]cos^{-1}[/tex] cos x° = [tex]cos^{-1}[/tex] (0.8421)

            x° = 32.637

           

             x° ≈ 32.6 to  the nearest tenth

Therefore the value of x° = 32.6