OpenStax, Algebra and Trigonometry 2e §13.2 Arithmetic Sequences · Exercise 30 · Probability · Counting & chance

Arithmetic Sequences · Exercise 30

Find the specified term given two terms from an arithmetic sequence.

$a_{3} = - 17.1$ and $a_{10} = - 15.7.$ Find $a_{21} .$

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OpenStax, Algebra and Trigonometry 2e · §13.2 Arithmetic Sequences · Exercise 30

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