A student has a body mass of 175.5 pounds. He steps onto a scale holding a 25.0-pound barbell. Which of the following expresses the combined mass of the student and the barbell using the correct number of significant figures?

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A student has a body mass of 175.5 pounds. He steps onto a scale holding a 25.0-pound barbell. Which of the following expresses the combined mass of the student and the barbell using the correct number of significant figures? A) 200 lbs B) 200.5 lbs C) 200.50 lbs D) 205 lbs E) 150.5 lbs
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Given

mass of student, M=175.5 Poundsmass of barbell,m=25.0 lbsNow, he steps onto a scale holding barbell.

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