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Mathematics, 26.07.2021 19:40 blaze9691

In kickboxing, it is found that the force, f, needed to break a board, varies inversely with the length, l, of the board. If it takes 9 pounds of pressure to break a board that is 3 feet long, how long is a board that requires 5 pounds of pressure to break?

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In kickboxing, it is found that the force, f, needed to break a board, varies inversely with the len...
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