can someone please help me with this?

Answer:
x=41
Step-by-step explanation:
Please see attached picture for full solution.
Answer: x = 41 degrees
Step-by-step explanation:
The given triangle is a right angle triangle.
From the given right angle triangle,
the hypotenuse of the right angle triangle is 5.3
With m∠x as the reference angle, the adjacent side of the right angle triangle is 4.0
The unknown side represents the opposite side of the right angle triangle.
To determine m∠x, we would apply
the cosine trigonometric ratio.
Cos θ, = adjacent side/hypotenuse. Therefore,
Cos x = 4/5.3 = 0.7547
x = Cos^-1(0.7547)
x = 41 degrees