Answer:
-8
Step-by-step explanation:
Add the two numbers but maintain the negative sign.
1. 30x-2=1x+1
28x=2x
14=x
Area of the square = (9 m)^2 = 81 m^2
The four circular sectors combine to form a circle with diameter 9 m, hence radius 4.5 m.
Area of the circle = π (4.5 m)^2 = 20.25π m^2
Then the area of the shaded region is
81 m^2 - 20.25π m^2 ≈ 17.4 m^2