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152E2-F08 - MA 15200 Exam 2A 1 Solve the following equation...

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MA 15200 Exam 2A Fall 2008 1 1) Solve the following equation. Write answer in simplified form. 2 ( 5) 8 x - = A 5 2 2 B 5 2 2 C 13, 3 D 5 8 E 13, 3 x x x x x = ± = - ± = - = ± = 2) Solve this equation. 2 3 11 6 0 x x - + = 3 2 1 3 2 3 11 7 6 6 A , 3 B , 6 C 1, 2 D , 3 E x x x x x = = = = = ± 3) Multiply and write answer as a complex number ( ) a bi . 1 4 (12 100)( 4 ) - - - + - A 43 46 B 48 51 C 53 46 D 43 46 E 89 i i i i - - - - - + - + -
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MA 15200 Exam 2A Fall 2008 2 4) Divide and write answer as a complex number ( ) a bi . 1 1 3 i 1 3 10 10 1 2 1 3 10 10 1 3 8 8 1 3 8 8 A B 0 C D E i i i i i + - - - - - - - 5) Solve this equation. 4 2 3 12 0 x - - = 15 8 9 2 A 0 B 3 C 6 D E x x x x x = = = = = 6) Solve. Write solution using interval notation. 7 1 12 2 (2 4) 2 x x + + ( ( 29 ( 29 ( 29 ( 29 48 5 26 5 26 5 48 5 8 5 A , B , C , D , E , -∞ - -∞ -∞ -
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MA 15200 Exam 2A Fall 2008 3 7) Solve. Write the solution using interval notation. 2 4 10 x A ( , 7] [3, ) B [ 7,3] C [3, ) D ( , 7) (3, ) E ( 7,3) -∞ - - -∞ - - 8) Which point is not paired with the correct quadrant in which it would be found? A ( 2, 4) QIII B (2, 8) QIV C (16,8.3) QI D ( 55,4) QII E All are paired correctly.
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