Error Analysis: 8) A student uses the explicit formula $$ a_{12}=5+(12-1)(3) $$ for the sequence $$ 3,8,13,18,23, \ldots $$ to find the 12th term. Explain the error using complete sentences

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Boyd Pena · Accepted Answer

The student's error is in using the wrong first term and common difference in the arithmetic sequence formula. The correct 12th term should be 58, not the value calculated with the student's formula.

Error Analysis: 8) A student uses the explicit formula \( a_{12}=5+(12-1)(3) \) for the sequence \( 3,8,13,18,23, \ldots \) to find the 12th term. Explain the error using complete sentences

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Error Analysis: 8) A student uses the explicit formula \( a_{12}=5+(12-1)(3) \) for the sequence \( 3,8,13,18,23, \ldots \) to find the 12th term. Explain the error using complete sentences

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