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pandaecat
 one year ago
Check my answer please!
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?
My answer is 4x^2+16x+15.
pandaecat
 one year ago
Check my answer please! 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? My answer is 4x^2+16x+15.

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pandaecat
 one year ago
Best ResponseYou've already chosen the best response.0The choices are 2x^2 + 8x − 19.25 = 0 3x^2 + 5x − 19.25 = 0 4x^2 + 16x − 4.25 = 0 4x^2 + 16x + 15 = 0

triciaal
 one year ago
Best ResponseYou've already chosen the best response.2dw:1440442414237:dw

triciaal
 one year ago
Best ResponseYou've already chosen the best response.2dw:1440442684697:dw

pandaecat
 one year ago
Best ResponseYou've already chosen the best response.0I don't really get it...

triciaal
 one year ago
Best ResponseYou've already chosen the best response.2the area is 4x^2 + 16x + 15 is the area of mirror + frame = 19.25 the frame is total area  mirror so minus 15 = 4.25

triciaal
 one year ago
Best ResponseYou've already chosen the best response.2quadratic for frame 4x^2 + 16x  4.25 = 0

triciaal
 one year ago
Best ResponseYou've already chosen the best response.2sorry for the time lapse my sister called long distance don't multitask well

triciaal
 one year ago
Best ResponseYou've already chosen the best response.2do you have any questions?
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