Respuesta :

Answer:

       23 sin 55°

x = ------------------           (matches first answer choice)

          sin 85°

Step-by-step explanation:

Note that 2 angles and 1 side length are given.  This is a typical application of the Law of Sines.  The formula for finding the length of side x is:

       23 sin 55°

x = ------------------           (matches first answer choice)

          sin 85°