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  • 08-11-2016
  • Mathematics
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1.Write a function rule for the area of a rectangle with a length of 3 ft. more than two times it’s width. What is the area of the rectangle when its width is 4 feet?

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pocketshirts
pocketshirts pocketshirts
  • 08-11-2016
[tex]A = (w)(2w+3)[/tex]

or

[tex]A = 2w^{2} + 3w[/tex]

When w = 4 feet

[tex]A = 2(4)^2 + 3(4)[/tex]

[tex]A = 2(16) +12[/tex]

[tex]A = 32 + 12 = 44[/tex] feet
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