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02-05-2017
Mathematics

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Identify the 33rd term of the arithmetic sequence 9, 7 and one half, 6...

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sqdancefan sqdancefan

01-08-2019

Answer:

-39

Step-by-step explanation:

The general term of an arithmetic sequence is ...

an = a1 +d(n -1)

This sequence has first term a1=9 and common difference d=(7.5-9) = -1.5. Then the 33rd term is ...

a33 = 9 -1.5(33 -1) = 9 -48 = -39

The 33rd term is -39.

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