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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?



x2 + 14x − 2 = 0
2x2 + 10x − 7 = 0
3x2 + 12x − 7 = 0
4x2 + 10x − 1 = 0

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 equati class=

Respuesta :

amna04352

Answer:

4x² + 10x - 1 = 0

Step-by-step explanation:

Width: 3 + 2x

Height: 2 + 2x

Area: (3 + 2x)(2 + 2x) = 7

4x² + 4x + 6x + 6 = 7

4x² + 10x - 1 = 0

taynicole1018

Answer:

Your answer should be D :)

Step-by-step explanation:

I got it correct on my test.

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