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these are my answers to homework of 4-19-13

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
simplify: √250   about 16  
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simplify: √243   about 16  
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Simplify: √63b^2   3√7b  
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Simplify: √35/144   about √1/4  
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Simplify: √105/121   irreducible  
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Simplify: √28f^2/9   28f/9  
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Your maximum walking speed in inches per second can be approximated using the expression √384*l, where l is your leg length in inches. Suppose your leg length is 28 inches. Then approximate the speed to the nearest inch per second. also simplify the =tion   224√6; about 549 steps/sec  
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Simplify: √500n/4y^2   about √22n/2y  
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Simplify: √5b^2/125   about √2b/11  
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