Answer with explanation:
Length of side of Square = 7 cm
Area of Square = (Side)²=7²=49 cm²
Diameter of circle = 7 cm
So, Radius 
cm
Area of circle = π × (Radius)²
=3.14 × (3.5)²
= 3.14 × 12.25
= 38.465 cm²
Area of shaded Region = Area of Square - Area of Circle
= 49 - 38.465
= 10.535 cm²
=10.54 cm²
Option A
Answer:
D [-7, 6)
-7 
x < 6
R [-11, 11)
-11 y < 11
Step-by-step explanation:
Answer:
w = π/2
Step-by-step explanation:
I used trig identities (double angle) to solve this problem.
Step 1: Rearrange problem
2cos²(w) - cos(w) - 1 = 0
2cos²(w) - 1 - cos(w) = 0
Step 2: Trig Identity
cos2w - cos(w) = 0
Step 3: Combine like terms
cosw = 0
Step 4: Solve
w = cos^-1(0)
w = π/2
I may have done it wrong so don't rely too much on me
