Hergross

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Unformatted text preview: ater than the distance between x and z. Does z lie between x and y on the number line? (1) xyz < 0 (2) xy < 0 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ ­­­­­­­­­­­­­­ 【【【【E 【【【【(1) xyz < 0 , 【【【 + ­ + , + + ­ , ­ + + , ­ ­ ­ , 【【【【【 (2)xy < 0 , ­ + , + ­ , 【【【 (1)【(2) = ­ + + , + ­ + ,【【【 【E ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ ­­­­­­­­­­­­­­ 169. 16735­!­item­!­187;#058&010875 If the integers a and n are greater than 1 and the product of the first 8 positive integers is a multiple of an, what is the value of a ? (1) an = 64 (2) n = 6 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ ­­­­­­­­­­­­­­【【【【B 【【【【(1) 2 6 = 64 , 4 3 =64 , 8 2 =64 , not sufficient (2) n = 6 , 2 = 64 , sufficient 6 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ ­­­­­­­­­­­­­­ 170. 16927­!­item­!­187;#058&010946 If n and t are positive integers, what is the greatest prime factor of the product nt ? (1) The greatest common factor of n and t is 5. (2) The least com...
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This note was uploaded on 06/15/2012 for the course ECON 401 taught by Professor Kim during the Spring '12 term at East China Normal University.

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