bandchick3231 bandchick3231
  • 24-04-2019
  • Mathematics
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the area of a rectangle is 14 ft^2, and the length of the rectangle is 3 ft less than twice the width. find the dimensions of the rectangle.
length: ? ft
width: ? ft

Respuesta :

desperatesmile
desperatesmile desperatesmile
  • 24-04-2019

14=A=Lw

L=2w-3

14=(2w-3)w

0=2w²-3w-14

0=(2w-7)(w+2)

7/2=w or w=-3

Measurements aren't negative

w=7/2 ft

L=2(7/2)-3

L=7-3

L=4 ft

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