SOLUTION: Consider each given sequence start. i) Classify each as arithmetic, geometric, and/or none of these. iii) Find the sum of the first 7 terms, call it S7 . x x, 3 −1, 9x+ 2

Question 1178155: Consider each given sequence start. i) Classify each as arithmetic, geometric, and/or none of these. iii) Find the sum of the first 7 terms, call it S7 .
x x, 3 −1, 9x+ 2, 27x−3,
Answer by ikleyn(52790) (Show Source): You can put this solution on YOUR website!
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My interior sense tells me that your third term is written incorrectly in your post.

Also, the comma between the first and the second term is missed, making the entire strategic scenario UNCLEAR.

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Also, can you explain me how it may happen that you do not understand what is written in your papers ?

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