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HelloKitty17
 one year ago
Alexei wants to hang a mirror in his boat, and put a frame around it. The mirror and frame must have an area of 19.25 square feet. The mirror is 3 feet wide and 5 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?
2x2 + 8x  19.25 = 0
3x2 + 5x  19.25 = 0
4x2 + 16x  4.25 = 0
4x2 + 16x + 15 = 0
HelloKitty17
 one year ago
Alexei wants to hang a mirror in his boat, and put a frame around it. The mirror and frame must have an area of 19.25 square feet. The mirror is 3 feet wide and 5 feet long. Which quadratic equation can be used to determine the thickness of the frame, x? 2x2 + 8x  19.25 = 0 3x2 + 5x  19.25 = 0 4x2 + 16x  4.25 = 0 4x2 + 16x + 15 = 0

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The first part is already in squared terms. "19.25 sq ft" Taking the measurements for the mirror 3ft and 5ft, you'd get: "15 sq ft." Subtract that answer from the previous number to get "4.25 sq ft." And you should get C (just by looking at the answers lol).

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1438615747857:dw

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0dw:1438616510183:dw

OregonDuck
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438616865219:dw

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0dw:1438616634895:dw
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