What Is The Common Difference In 13,__,__,__,__,-17?

What is the common difference in 13,__,__,__,__,-17?

 

Answer:

d=-6

Step-by-step explanation:

a1=13

a6=-17

-17=13+(6-1)d

5d=−30

5d/5=-30/5

d=-6

13,7,1,-5,-11,-17

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