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ap calculus help please?!?
you are designing a rectangular poster to contain 50in of printing with a 4in margin at the top and bottom and a 2in margin at each side. what overall dimensions wil minimize the amount of paper used?
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- az_lenderLv 78 years agoFavorite Answer
A = area of paper = (x+4)(8+(50/x)) = 82 + 8x + (200/x)
dA/dx = 8 - (200/x^2)
This will be zero when x=5 and 50/x = 10.
The paper should be 9"x18", with a 9-inch side being the "top."
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