Answer:
B
Step-by-step explanation:
36/3 = 12
39/3 = 13
12:13
Answer:
I'm a alien, sorry.
Step-by-step explanation:
Answer:
x = 20 degrees.
Step-by-step explanation:
cos40∘=sin(x+30∘)
sin (x + 30) = 0.766
x + 30 = arcsin 0.766 = 50
x = 50 - 30 = 20.