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Alberto is stacking firewood. He puts 20 logs on the bottom row. Then he stacks each row so that there is 1 fewer log than the row below. Which of the following is formed by the number of logs in 10 rows?
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Jun 15, 2019
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Alberto is stacking firewood. He puts 20 logs on the bottom row. Then he stacks each row so that there is 1 fewer log than the row below. Which of the following is formed by the number of logs in 10 rows?
A. an arithmetic series
B. an arithmetic sequence
C. a geometric series
D. a geometric sequence
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Arko
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Answer:
Ansewer is a
Explanation:
Chris Barr
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This would be A) an arithmetic series.
The number of logs in each row would give an arithmetic sequence, as it decreases by 1 each time.
Finding the total number of logs in 10 rows would be finding the sum, which makes it an arithmetic series.
Andrewmacpherson
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Jun 19, 2019
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