Answer:
132cm
Step-by-step explanation:
Split there firgue into shapes you know
there is a rectangle and a Trapezoid
A = bh
A = 7×4
A = 28cm
Trapezoid
A = 1/2h(b+b)
A = 1/2×8(19+7)
A = 1/2×8(26)
A = 1/2(208)
A = 104cm
Add them together
104 + 28 = 132
Use arccos...cos^-1 so
cos^-1 (0.8195)
it equals 34.96522689°
The correct answer is a.y=3x-4
Answer:
7b-c²
Step-by-step explanation:
7times b is 7b reduced by the square of c means minus c²