Question

I used a tutor for this and the answer I was given is 50.2. Which is incorrect. I am trying to understand how to solve.

Answer 1

Since you have the hypotenuse and the adjacent length, you have to use the trigonometric ratio cosine to

solve for x. Formulating the equation we have:

`\begin{gathered} \cos (x)=\frac{\text{ adjacent length}}{\text{hypotenuse}} \\ \cos (x)=(9)/(14)\text{ (Replacing the values)} \\ \cos ^(-1)(\cos (x))=\cos ^(-1)(9/14)\text{ (Using the inverse function of cosine)} \\ x\text{ = 49.99}5\text{ (Dividing 9 by 14 and using the inverse function of cosine)} \\ \text{The answer would be 50\degree{}rounded to the nearest integer. } \end{gathered}`