Answer:
x ∈ ℝ
Step-by-step explanation:
Since this is a constant function, this domain is the set of all real numbers.
Hope this helped! :)
Answer:
58
Step-by-step explanation:

In dealing with these problems, the first step to do is illustrate it. When you do, you would see a right triangle with a 55° angle between the hypotenuse and the vertical leg. Using pythagorean relations:
sin 55 = 50/x, where x is the unknown
x =50/sin55
x = 61.04 feet