I don't think I understand what you mean, but I will guess. A quadrilateral must have 4 sides to it and have 4 vertices (corners).
28ft is the correct answer
<h2><u>
Answer: 6:10</u></h2>
Step-by-step explanation: 6:10 = 0.6 and 8:15 ≈ 0.53
Answer:
![\$11.13](https://tex.z-dn.net/?f=%5C%2411.13)
Step-by-step explanation:
step 1
Find the surface area of the cylinder
The surface area of the cylinder is equal to
![SA=\pi r^{2} +2\pi rh](https://tex.z-dn.net/?f=SA%3D%5Cpi%20r%5E%7B2%7D%20%2B2%5Cpi%20rh)
we have
----> the radius is half the diameter
![h=5\ in](https://tex.z-dn.net/?f=h%3D5%5C%20in)
assume
![\pi =3.14](https://tex.z-dn.net/?f=%5Cpi%20%3D3.14)
substitute
![SA=(3.14)(1.5)^{2} +2(3.14)(1.5)(5)=54.165\ in^{2}](https://tex.z-dn.net/?f=SA%3D%283.14%29%281.5%29%5E%7B2%7D%20%2B2%283.14%29%281.5%29%285%29%3D54.165%5C%20in%5E%7B2%7D)
<em>Find the cost</em>
![54.165*(0.75)=\$40.62](https://tex.z-dn.net/?f=54.165%2A%280.75%29%3D%5C%2440.62)
step 2
Find the surface area of the square prism
The surface area of the prism is equal to
![SA=b^{2} +4bh](https://tex.z-dn.net/?f=SA%3Db%5E%7B2%7D%20%2B4bh)
we have
![b=3\ in\\ h=5\ in](https://tex.z-dn.net/?f=b%3D3%5C%20in%5C%5C%20h%3D5%5C%20in)
substitute
![SA=(3)^{2} +4(3)(5)=69\ in^{2}](https://tex.z-dn.net/?f=SA%3D%283%29%5E%7B2%7D%20%2B4%283%29%285%29%3D69%5C%20in%5E%7B2%7D)
<em>Find the cost</em>
![69*(0.75)=\$51.75](https://tex.z-dn.net/?f=69%2A%280.75%29%3D%5C%2451.75)
step 3
Find the difference of costs
![\$51.75-\$40.62=\$11.13](https://tex.z-dn.net/?f=%5C%2451.75-%5C%2440.62%3D%5C%2411.13)