Answer:
Width = 4ft
Step-by-step explanation:
Area of the rectangular mural = Length × Breadth
7 ft tall and 11 ft wide.
(11 - 2W)(7 - 2W) = 88
77 -22W - 14W + 4W² = 88
77 -36W + 4W² = 88
4W² - 36W + 77 - 88
= 4W² - 36W - 11
W = 4ft
Answer:
I got 6.012 times 10^3
Step-by-step explanation:
I'm not sure how to make it into decimal form but maybe that number can help you. Hopefully it's correct
The cube has 6 this same faces.
Therefore the surface area is equal 6 · 7cm² = 42cm²