Respuesta :
The common difference, d, of this sequence 8.7, 7.3, 5.9, 4.5, 3.1 is -1.4
How to find common difference in an arithmetic sequence?
The arithmetic sequence formula is described as follows;
aₙ = a + (n - 1)d
where
- a = first term
- n = number of terms
- d = common difference
Hence, the common difference of the sequence 8.7, 7.3, 5.9, 4.5, 3.1, can be found as follows:
common difference = d = 7.3 - 8.7 = -1.4
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