3 years ago

The first three terms of a sequence are given. Round to the nearest thousandth (if

Mathematics

1 answer:

NNADVOKAT [17]3 years ago

4 0

Answer:

The 49th term is 39.

Step-by-step explanation:

This is a decreasing arithmetic sequence. We recognize this because the difference from one term to the next is 5.

The general formula needed here is a(n) = a(1) - 5(n - 1)

a(45) = 261 - 5(46 - 1), or

a(45) = 261 - 225 = 39

The 49th term is 39.

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