ACTIVITY 91. Find the sum of the first 17 terms of the arithmeticsequence 2, 5, 8,...2. Find the sum of the first 25 terms of the arithmeticsequence 20, 18, 16, ...3. Find the sum of the first 20 terms of an arithmeticsequence whose a₁ = 25 and a20 = -13.4. Find the sum of the first 200 natural numbers.5. Find the sum of all multiples of 6 between 1 and 100.

Question

ACTIVITY 91. Find the sum of the first 17 terms of the arithmeticsequence 2, 5, 8,...2. Find the sum of the first 25 terms of the arithmeticsequence 20, 18, 16, ...3. Find the sum of the first 20 terms of an arithmeticsequence whose a₁ = 25 and a20 = -13.4. Find the sum of the first 200 natural numbers.5. Find the sum of all multiples of 6 between 1 and 100.​

sherlitapaulino31 · Answer

Answer:1. 2,5,8,11,14,172.20,18,16,143.

Answer (1)

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