Mathematics, 27.07.2021 22:00, toxsicity

Find the sum of the first 40 terms of an arithmetic series whose first term is 7 and 40th term is 115. Type answer as an integer (no decimals) arithmetic sum formula:
Sn = (a1 +
+ an)
geometric sum formula:
az (1 - p)
S =
1-r

Find the sum of the first 40 terms of an arithmetic series whose first term is 7 and 40th term is 1

Answers: 3

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Find the sum of the first 40 terms of an arithmetic series whose first term is 7 and 40th term is 115. Type answer as an integer (no decimals) arithmetic sum formula: Sn = (a1 + + an) geometric sum formula: az (1 - p) S = 1-r

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Find the sum of the first 40 terms of an arithmetic series whose first term is 7 and 40th term is 115. Type answer as an integer (no decimals) arithmetic sum formula:
Sn = (a1 +
+ an)
geometric sum formula:
az (1 - p)
S =
1-r