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Radda [10]
3 years ago
13

If a3 = 11 and a5 = 7 and ak is the -th term of the sequence and ak = -9, then what is the value of k?

Mathematics
1 answer:
babymother [125]3 years ago
6 0
An=a3+d

-9=11+-2

2n=26

n=13
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