Answer:
Step-by-step explanation:
θ = 2π/9 radians
arc length = rθ = 8π/9 units
area of sector = πr²/9 = 16π/9 square units
0
f(2)= -2×2×2+ 6×2 -7
=-8+12-7
=-3
perpindicular slope = -2/3
x = 17, angle 1 and 2 = 45
