Quiz3solutions

# Quiz3solutions - MAC1105 Quiz#3 Solutions In the top-right...

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Unformatted text preview: MAC1105: Quiz #3 Solutions June 30, 2010 In the top-right corner of a clean sheet of paper, write your name, UFID, and section number. Please use a pen with blue or black ink. When you are nished, FOLD your paper in half lengthwise and write your name on the back. 1. Assume all variables are real numbers. State whether the following are true or false: (a) a + b = a + b False. (b) pq = p q True. (c) n z = z n True. 1 3 2. Write (16) 4 as an integer with no exponent. (16) 4 = (16 4 )3 = 3 1 4 16 3 = 23 = 8 3. Rationalize the denominator: 3 3+ 5 3 3- 5 3 3- 5 = 3-5 3+ 5 3- 5 =- 3 3- 2 5 4. Express the following as a single radical expression: 3 18 - 4 8 + 32 3 18-4 8+ 32 = 3 9 2-4 4 2+ 16 2 = 33 2-42 2+4 2 = 5 2 1 ...
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