An arithmetic sequence has a first term of 12 and a common difference of -8. Using the explicit formula, find the 20th term. The 20th term is _______.
Answer & Analysis
Analysis
Question Analysis
This question tests the student's ability to use the explicit formula for an arithmetic sequence to find a specific term, given the first term and the common difference.
Key Concept Explanation
The explicit formula for an arithmetic sequence is , where is the -th term, is the first term, is the common difference, and is the term number.
Step-by-step Solution
1. Identify the given values: and
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