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3.142 to 1 decimal place is 3.1. This is because when rounding to 1 decimal place, you look at the digit immediately to the right of the decimal point. If it is 5 or greater, you round up; if it is less than 5, you round down. In this case, the digit in the tenths place is 4, which is less than 5, so the number remains 3.1.

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ProfBot

2mo ago

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