Answer: ![8x^2-10x-6](https://tex.z-dn.net/?f=8x%5E2-10x-6)
Step-by-step explanation:
Given : length =
, width = ![x^2-4](https://tex.z-dn.net/?f=x%5E2-4)
Perimeter of rectangle = 2 ( length + width)
Then, Perimeter of given rectangle = ![2 (3x^2-5x+1+x^2-4)](https://tex.z-dn.net/?f=2%20%283x%5E2-5x%2B1%2Bx%5E2-4%29)
![=2 (4x^2-5x-3)\\\\= 8x^2-10x-6](https://tex.z-dn.net/?f=%3D2%20%284x%5E2-5x-3%29%5C%5C%5C%5C%3D%208x%5E2-10x-6)
Hence, the correct expression for perimeter = ![8x^2-10x-6](https://tex.z-dn.net/?f=8x%5E2-10x-6)
You didn’t include a picture so it’s unsolveable
Depends which prism
Rectangular prism volume is LWH
480 - - 240
2 negatives make a positive so it would be 480 + 240 which is 720 feet apart