0.4444444444444
is the answer for your question it repeats so your gonna want to put a bar notation.
Answer: 6
Step-by-step explanation:
3/1=3
2/4=0.5
3/0.5=6
Cos(x) = BC/AB = 10.5/20 = 0.525 ⇒ x = 58.3°
Basicly just plug in some nubers around the five like 3 + 5 - 10 = - 2 or 3 + unkown number - 10 = -2
