Respuesta :

altavistard

Answer:

the common difference is -1.4

Step-by-step explanation:

From 8.6 to 6.2 is a decrease of 1.4.  

From 6.2 to 3.8 is also a decrease of 1.4.

And so on.

So the common difference is -1.4.

remotecontrolbrain

Answer:

-2.4

Step-by-step explanation:

The difference between any two consecutive terms (following - preceding) is -2.4. The negative sign corresponds to the observation that the sequence is decreasing.

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