13. A total of x feet of fencing is to form three sides of a level rectangular yard. What is the maximum possible area of the yard, in terms of x ? (A) 2 9 x (B) 2 8 x (C) 2 4 x (D) 2 x (E) 2 2x 14. What is the units digit in the standard decimal expansion of the number 25 7 ? (A) 1 (B) 3 (C) 5 (D) 7 (E) 9 15. Let f be a continuous real-valued function defined on the closed interval > @ 2, 3 . Which of the following is NOT necessarily true? (A) f is bounded. (B) 3 2 f t dt Ô exists. (C) For each c between f 2 and f 3 , there is an x° > @ 2, 3 such that f x c . (D) There is an M in f > @ 2, 3 such that 3 2 f t dt M5 . Ô (E) 0 0 lim h fh f h exists.
Posted on: Thu, 30 Jan 2014 11:05:59 +0000
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