111ex3answers,fa10

111ex3answers,fa10 - 2 7 ( 4)( 2)( 2) a x x x + +-10) A B 1...

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MA 11100 Exam 3 Answers, Fall 2010 Problem Form A Form B Actual Answer 1) E B 19 , 14 2) B C There are two solutions, both positive. (2, 11) 3) C E 5 2 2 x - ≤ ≤ 4) D A 24 4 x y + 5) A C 2 ( 3 )( 3 ) 2 9 x y x y x y + - = - 6) B D 2 a b + 7) D A 2 7 10 x x + - 8) D E 2 3 x + 9) B C
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Unformatted text preview: 2 7 ( 4)( 2)( 2) a x x x + +-10) A B 1 1, 2 x = -11) C D 2 8( 4) x x + 12) E B 3, 2, 0 only- -13) C A 1500 0.25( 1500) 1200 0.3( 1200) b b +-< +-14) D B Between 2.8 and 3.2 hours (3 hr.) 15) C E 2 2 23 30 x x-+ =...
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