153E1-S2010

153E1-S2010 - MA 15300 Exam 1A Spring 2010 1. Which of the...

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MA 15300 Exam 1A Spring 2010 1 1. Which of the following statements is (are) true? . I only . I and II only . II and III only . I, II, and III . None are true. A B C D E 2. Simplify. Do not leave negative exponents in your answer. () 35 82 1 6 4 x yx y ⎛⎞ ⎜⎟ ⎝⎠ 10 24 24 10 57 7 5 5 10 3 . 2 3 . 2 3 . 2 3 . 2 3 . 2 y A x x y B x y C y D x x E y 3. Simplify: 1 6 3 12 8 x y 4 2 17 3 35 3 17 3 35 3 4 2 . 2 8 . 3 . 2 8 . 3 . None of the above. y A x x B y x C y y D x E ()() 1 I. 10 means "The reciprocal of is at most 10". 3 II. 2 2 III. 3 6 1 2 12 y y < −− + =
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MA 15300 Exam 1A Spring 2010 2 4. Perform the indicated operations and express as a polynomial. ( ) ( ) 43 2 735 1 2 4 3 x xx −+ + 432 2 2 .5 5 3 6 1 .5 5 2 1 . 51 121 1 1 .5 7 8 1 . None of the above. Ax x Bxxx x Cx x Dxx E ++− +−− + + 5. Rationalize the denominator and simplify. 1 3 t t + 1 . 3 23 . 9 3 . 9 . 9 1 . 9 t A t tt B t t C t D t t E t + −− + ++ + 6. Which of the following is (are) true?
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153E1-S2010 - MA 15300 Exam 1A Spring 2010 1. Which of the...

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