One quick math question in a screenshot below, thanks

Answer:
sec(θ)=[tex]\sqrt{106} /9[/tex]
Step-by-step explanation:
sec is hypotenuse over adjacent. So we need to find the value for the hypotenuse using the Pythagorean theorem. 9^2 + 5^2 = [tex]\sqrt{106}[/tex]. So sec of that angle would be the square root of 106 divided by 9 since 9 is the adjacent side to angle θ.