8z^2-8z+36
Tell me if u need more help :)
Are those answer options or the side lengths? And where is the trapezoid?
Answer:
251.33 cubic inches
Step-by-step explanation:
The formula for the volume of a cylinder = πr²h
r = Radius = 4 inches
h = Height = 5 inches
Volume of a Cylinder = π × 4² × 5
= 251.32741 cubic inches
Approximately , the Volume of the cylinder = 251.33 cubic inches.
Answer:
9.628 cm²
Step-by-step explanation:
Let A be the area of the sector OAB
Let a be the area of the sector OCD
The shaded area = A − a
![\begin{aligned}A &=\frac{1}{12} (\pi \times 7^{2}) \\&=12.828 \ldots\end{aligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7DA%20%26%3D%5Cfrac%7B1%7D%7B12%7D%20%28%5Cpi%20%5Ctimes%207%5E%7B2%7D%29%20%5C%5C%26%3D12.828%20%5Cldots%5Cend%7Baligned%7D)
![\begin{aligned}a & = \frac{1}{12}\left(\pi \times 3.5^{2}\right) \\&=3.2 \ldots\end{aligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7Da%20%26%20%3D%20%5Cfrac%7B1%7D%7B12%7D%5Cleft%28%5Cpi%20%5Ctimes%203.5%5E%7B2%7D%5Cright%29%20%5C%5C%26%3D3.2%20%5Cldots%5Cend%7Baligned%7D)
The shaded area ≈ 12.828 - 3.2 ≈ 9.628 cm²
Answer:
Area: 9
Perimeter: 22
Step-by-step explanation:
Area = ½ * (a+ b) * h = ½ * (4 + 5) * 2 = ½ * 9 * 2 = 9.
Perimeter = a + b + c + d = 4+5+6+7 = 22.