Problem 127 of 7
Construct an explicit geometric sequence rule for The initial value is 100 and it decreases by a factor of 1/5 each time.
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identify first term and common ratio.
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Context must define a first term and common ratio.
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Solution
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1. Identify the first term.
2. Identify the common ratio.
3. Use a_n=a_1(r)^(n-1).
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Arithmetic rules for multiplicative patterns.