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3 years ago

8

11, 7, 3, -1,...

1 answer:

Bess [88]3 years ago

3 0

The mathematical formula to solve this is :

f(n)= f1 + (n-1)d

We have:f(n)= 11 + (n-1)-4

f(n)= 11 -4n +4

f(n)=15 -4n

The right answer is D.

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