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Mathematics 9 Online
OpenStudy (anonymous):

On an old single-pan balance, a student places a brass cylinder marked 5.0 kg (kilogram). Using the balance, he measures its mass. He notes that the mass is 4.97 kg. He repeats the measurement and gets 4.96 this time. He repeats the process twice more and gets 4.97 kg and 4.98 kg. -- What should the student record as the mass of the brass cylinder? A. 5.0 kg B. 4.9 kg C. 4.97 kg D. 4.970 kg

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