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anonymous
 one year ago
Mary wants to hang a mirror in her room. The mirror and frame must have an area of 7 square feet. The mirror is 2 feet wide and 3 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?
Square with an inner frame with height of 2ft on the left frame and width of 3ft on the top. Arrow on the bottom frame with an x and an arrow on the right frame with an x.
x2 + 14x − 2 = 0
2x2 + 10x − 7 = 0
3x2 + 12x − 7 = 0
4x2 + 10x − 1 = 0
anonymous
 one year ago
Mary wants to hang a mirror in her room. The mirror and frame must have an area of 7 square feet. The mirror is 2 feet wide and 3 feet long. Which quadratic equation can be used to determine the thickness of the frame, x? Square with an inner frame with height of 2ft on the left frame and width of 3ft on the top. Arrow on the bottom frame with an x and an arrow on the right frame with an x. x2 + 14x − 2 = 0 2x2 + 10x − 7 = 0 3x2 + 12x − 7 = 0 4x2 + 10x − 1 = 0

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Mehek14
 one year ago
Best ResponseYou've already chosen the best response.1\((2x+2)(2x+3)=7\) do you know FOIL?

Mehek14
 one year ago
Best ResponseYou've already chosen the best response.1\(2x*2x\\2x*3\\2*2x\\2*3\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh I see ok so I just Multiply all of these? 2x∗2x 2x∗3 2∗2x 2∗3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.04x and 6x and 4x and 6x

Mehek14
 one year ago
Best ResponseYou've already chosen the best response.1correct \(4x^2+10x+6=7\) \(67=\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ah so D ok thank you VERY MUCH!
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