QQuestionMathematics
QuestionMathematics
"Identify the significant figures in each number.
a. 109.0
b. 1090
c. .1090"
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Answer
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Step 1
For a number without any units, the significant figures are the digits that are known with certainty, starting from the first non-zero digit. a. The number 109.0 has four significant figures. The first non-zero digit is 1, and all the digits that follow are known. b. The number 1090 has only three significant figures. Although it may appear to have four significant figures, the last digit is actually a placeholder, not a known value. c. The number 0.1090 has four significant figures. The leading zero is a placeholder, while the first non-zero digit is 1, and all the digits that follow are known.
Final Answer
a. 4 significant figures b. 3 significant figures c. 4 significant figures
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