2/3 ÷ -1 1/3
2/3 ÷ -4/3
-2/3 × 3/4
-(2 × 3) / (3 × 4)
-6/12
-1/2
The answer is: -1/2 or -0.5.
The angle does not matter. Think of it as finding the other side to a triangle. Use

a=39 (line AB)
b=b (the leg we need to find)
c=89 (line BD)


(subtract the 1521 from both sides)

(square root both sides)

b = 80
AD=80
Answer:
x= -54
Step-by-step explanation:
-4x - 84 = 2x + 24
-4x + 2x= 24 + 84
-2x= 108
x= 108 ÷ (-2)
x= -54