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153E3-S2011 - MA 15300 Exam 3A Spring 2011 Use the...

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MA 15300 Exam 3A Spring 2011 Use the functions and ( ) x x x f 3 2 = ( ) 5 = x x g to answer questions #1 and #2: 1. Find and simplify . ( )( 2 f g ) ) . 17 . 5 . 17 . 13 . None of the above A B C D E 2. Find and simplify ( )( x g f D 5 2 . 5 3 . 40 3 . 15 8 . 40 13 . 2 2 3 2 2 3 2 + + + x x E x x x D x x C x x x B x x A 3. Choose the graph that best depicts the information provided from the following sign chart. 4 1 3 + + sign of ( ) x f 5 x y C. - 4 - 1 3 5 B. x y - 4 - 1 3 5 A. x y - 4 - 1 3 5 D. y x - 4 - 1 3 5 E. y x - 4 - 1 3 5 1
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