Question

Please help me with this​

Answer 1

D.
`Cos(Z) = (5)/(13)`

Explanation:

Using trigonometric ratios formula, thus:

`Cos(Z) = (Adjacent)/(Hypotenuse)`

Reference angle = Z

Adjacent = 10

Hypotenuse = 26

Plug in the values into the formula

`Cos(Z) = (10)/(26)`

Simplify

`Cos(Z) = (5)/(13)`