anonymous
  • anonymous
Sarah wants to hang a mirror in her room. The mirror and frame must have an area of 15 square feet. The mirror is 3 feet wide and 4 feet long. Which quadratic equation can be used to determine the thickness of the frame, x? . 3x2 + 14x − 2 = 0 4x2 + 14x − 3 = 0 x2 + 12x − 14 = 0 2x2 + 7x − 14 = 0
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
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anonymous
  • anonymous
anonymous
  • anonymous
What do you think?

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rishavraj
  • rishavraj
did u do any work???
anonymous
  • anonymous
I dont know how to figure it out :\
rishavraj
  • rishavraj
does tht mean tht area of mirror equals area of frame..???? just assurng....
rishavraj
  • rishavraj
wht do u think whts the dimensions of the farme???
anonymous
  • anonymous
i dont think so
rishavraj
  • rishavraj
*frame??
anonymous
  • anonymous
maybe a foot, or a foot and a half
rishavraj
  • rishavraj
http://prntscr.com/7utaal
anonymous
  • anonymous
So 4+2x on one side and 3+2x on the other
rishavraj
  • rishavraj
yuppp....
anonymous
  • anonymous
Is it B?
rishavraj
  • rishavraj
yup.... :))
anonymous
  • anonymous
Thank yoouuuu
rishavraj
  • rishavraj
yw :))

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