x^2 - y^2 - 2y - 1
x^2 - (y+1)^2
Answer:
20 joule
Step-by-step explanation:

Answer: Age:25
Step-by-step explanation:
Answer:
∠W = 73°
∠Y = 26°
∠X = 81°
Step-by-step explanation:
∠W + ∠X + ∠Y = 180°
∠W = 3x - 5
∠X = 3x - 5 + 8
∠Y = x
3x - 5 + 3x - 5 + 8 + x = 180
7x = 182
x = 182 / 7 = 26