Please please help solve and show how you got the answers I will mark brainliest

Answer:
Step-by-step explanation:
One
Sin(x) = 15/24 = 0.625
x = sin-1(0.625)
x = 38.68
Two
Cos(x) = 8/11
Cos(x) = .727
x = cos-1(.727)
x = 43.34
Three
Tan(x) = 20/37
Tan(x) = 0.5405
x = tan-1(0.5405)
x = 28.39
Four
Cos(x) = 18/23
Cos(x) = .7826
x = cos-1(0.7826)
x = 38.50