98.3, 94.1, 89.9, 85.7 (Arithmetic)
1, 0, -1, 0 (Neither)
1.75, 3.5, 7, 14 (Geometric)
-1, 1, -1, 1..... (Geometric)
<h3>Determining the type of a sequence</h3>
An arithmetic sequence has a common difference
A geometric sequence has a common ratio
Considering the given sequences one after the other:
<u>For 98.3, 94.1, 89.9, 85.7,..........</u>
The common difference, d = 94.1 - 98.3 = -4.2
Therefore, 98.3, 94.1, 89.9, 85.7 is an arithmetic sequence
<u>For 1, 0, -1, 0......</u>
The sequence does not have a common difference or a common ratio. Therefore, it is neither an arithmetic nor geometric sequence
<u>For 1.75, 3.5, 7, 14,.....</u>
The common ratio = 3/1.75 = 2
Therefore, it is a geometric sequnec
<u>For -1, 1, -1, 1.....</u>
The common ratio = 1/-1 = -1
It is a geometric sequence
Learn more on arithmetic and geometric sequences here: brainly.com/question/13613396
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