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DENIUS [597]
2 years ago
7

Find the sum of the arithmetic series in which a1 = –68, d = –3, and n = 20.

Mathematics
1 answer:
harkovskaia [24]2 years ago
6 0

Step-by-step explanation:

Sum of 20 terms in thr arithmetic sequence adds up to -1930

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The sum of the squares of 3 consecutive positive integers is 116. What are the numbers?
irina [24]
1st number = n
2nd number = n+1
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sum of the squares of 3 consecutive numbers is 116

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5 0
2 years ago
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jeka94

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