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?

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asked Feb 24, 2022 25.3k views

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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
high-school

Ofer Skulsky asked

by Ofer Skulsky

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1 Answer

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An=a3+d

-9=11+-2

2n=26

n=13

Arjun Vekariya answered Feb 28, 2022

by Arjun Vekariya

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