3 years ago

Find the 50th term for the sequence 31,24, 17

Mathematics

1 answer:

Nikitich [7]3 years ago

6 0

9514 1404 393

Answer:

-312

Step-by-step explanation:

The general term of an arithmetic sequence is ...

an = a1 +d(n -1)

Here, you have first term a1 = 31, and common difference d = 24-31 = -7. So, the 50th term is ...

a50 = 31 -7(50 -1) = 31 -7(49) = -312

The 50th term for the sequence is -312.

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