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 one year ago
Kody is building a table. He attached planks of wood and now wants to build a border around the planks. The area of the entire table should be no larger than 3,276 square inches. All together, the planks are 36 inches wide and 72 inches long. Which quadratic equation represents the area of the planks and border combined? (The border must have equal width on each side.)
4x2 + 216x + 2,592 = 0
4x2 + 216x − 684 = 0
2x2 + 216x − 3,276 = 0
x2 + 108x + 3,276 = 0
 one year ago
Kody is building a table. He attached planks of wood and now wants to build a border around the planks. The area of the entire table should be no larger than 3,276 square inches. All together, the planks are 36 inches wide and 72 inches long. Which quadratic equation represents the area of the planks and border combined? (The border must have equal width on each side.) 4x2 + 216x + 2,592 = 0 4x2 + 216x − 684 = 0 2x2 + 216x − 3,276 = 0 x2 + 108x + 3,276 = 0

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skullpatrol
 one year ago
Best ResponseYou've already chosen the best response.0dw:1372971833241:dw

michelle_1216_16
 one year ago
Best ResponseYou've already chosen the best response.0so what next do I use that and incorrperate it into the equation to get the answer

skullpatrol
 one year ago
Best ResponseYou've already chosen the best response.0$$(2x+72)(2x+36)=3276$$ This is the equation for the area of the table. You need to now multiply it out and try to match it to one of the choices.

skullpatrol
 one year ago
Best ResponseYou've already chosen the best response.0Thanks for trying :)

michelle_1216_16
 one year ago
Best ResponseYou've already chosen the best response.0so it would be A

skullpatrol
 one year ago
Best ResponseYou've already chosen the best response.0I get $$4x^2 + 216x − 684 = 0$$

michelle_1216_16
 one year ago
Best ResponseYou've already chosen the best response.0but when you multiply 36 by 72 you get 2592

michelle_1216_16
 one year ago
Best ResponseYou've already chosen the best response.0so the first two are correct but the last dosn't seem so

michelle_1216_16
 one year ago
Best ResponseYou've already chosen the best response.0and the answer is suppose to be positive
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