Mathematics, 30.11.2020 06:10, Marcus2935
4. Find the sum of the first eighteen terms of the arithmetic sequence whose nth
term is an = 15 + 8n.
a. 1438
b. 1638
c. 1836
d. 1783
Answers: 3
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4. Find the sum of the first eighteen terms of the arithmetic sequence whose nth
term is an = 15 +...
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