Mathematics
Januariladhatulahad
34

What is the common difference between successive terms in the sequence? 9, 2.5, –4, –10.5, –17, ... –11.5 –6.5 6.5 11.5

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(1) Answers
CassKnight

Start at the right and work to the left. -17 - (-10.5) = -17+10.5 = -6.5 -10.5 - (-4) =-10.5+4= - 6.5 -4 -(2.5) = - 6.5 2.5 - 9= -6.5 d = -6.5

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