The sequence is 9.8, 9.1, 8.4, 7.7, 7.0, 6.3, 5.6.
We have given that, the sequence
, 9.8 , 9.1 , , , 7.0 , 6.3 , 5.6
We have to determine the missing number in the sequence.
The constant difference between consecutive terms of an arithmetic sequence is called the common difference.
5.6-6.3=- 0.7
The first term is
9.1-0.7=8.4
The second term is
8.4-0.7=7.7
Therefore the sequence is 9.8, 9.1, 8.4, 7.7, 7.0, 6.3, 5.6.
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