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152E1-S09 - MA 15200 The number I II III IV A B C D E 2 II...

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MA 15200 Exam 1 A Spring 2009 1 1) The number 7 4 - is a member of which of the following sets? I Set of integers II Set of Rational Numbers III Set of Irrational Numbers IV Set of Real Numbers A II only B I and II only C II, III, and IV only D II and IV only E III and IV only 2) Which statement is true ? A 8 8 B 25 25 C If 7, then 7 7 D ( 7) 7 E is negative if 0 x x x x x x x π π - = - - - = < - = - - + = - + - < 3) Simplify the following. Do not leave any negative exponents. Assume the variables represent positive values. 3 5 5 10 5 m n p - 3 6 3 3 3 6 3 3 5 3 3 8 3 8 3 A B C D E m n p m p n m p n m p n m n p
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MA 15200 Exam 1 A Spring 2009 2 4) Simplify the following. Do not leave any negative exponents. 2 1 3 2 3 3 2 (4 ) ( ) x y x y x - - 3 2 3 2 2 3 3 5 64 A 12 B 64 C 64 D E None of the above. y x y x x y y x 5) If a crate measures 12,000 by 4000 by 54,000 millimeters, find its volume (in cubic millimeters) written in scientific notation. V Lwh = 12 3 11 3 12 3 48 3 A 1.06 10 mm B 2.592 10 mm C 2.592 10 mm D 25.92 10 mm E None of the Above × × × × 6) Simplify: 300 2 48 10 3 - + A 8 255 B 4 7 2
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