hw2 - lenoir(wml297 oldhomework 02 Turner(58220 This...

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lenoir (wml297) – oldhomework 02 – Turner – (58220) 1 This print-out should have 10 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points In May 1998, forest fires in southern Mexico and Guatemala spread smoke all the way to Austin. Those fires consumed forest land at a rate of 29100 acres/week. On the average, how many square meters of forest were burned every minute? An acre is 4047 m 2 . Correct answer: 11683 . 3 m 2 / min. Explanation: Let : R = 29100 acres . R = 29100 acres wk parenleftbigg 1 wk 7 d parenrightbiggparenleftbigg 1 d 24 h parenrightbigg × parenleftbigg 1 h 60 min parenrightbiggparenleftbigg 4047 m 2 acre parenrightbigg = 11683 . 3 m 2 / min . 002 10.0 points John and Mary Smith plan to put a wooden fence around their yard in order to keep the mean cats away from their dog Fido. There is a gate that is 2 . 51 m long which is not included as part of the length of the fence. What total length of fence is required to enclose a rectangular yard whose sides are 44 . 5 m and 39 . 1 m in length? 1 m = 3
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