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Mathematics
Arithmetic Sequences
Finding the nth term of an arithmetic sequence
An arithmetic sequence has a common difference of zero. The thirty-eighth term of the sequence is 2.1. What is the eighty-fifth term of the sequence?
A. 85.1
B. 2.1
C. 52.1
D. 0
1 answer
If the common difference of the arithmetic sequence is zero, then all the terms of the sequence will be the same. Therefore, the thirty-eighth term, being 2.1, will also be the eighty-fifth term. Hence, the answer is $\boxed{\textbf{(B)}\ 2.1}$.
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