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Which answer describes the type of sequence?

−99, −88, −66, −55, ...

A. arithmetic

B. neither arithmetic nor geometric

C. geometric

2 Answers

1 vote

Answer:

b

Explanation:

took the test thx to the other answer thought it deserved 5 starts good luck

User Iohans
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2 votes
Here, Geometric ratio, r = -88/-99 or -66/-88 which is 8/9 or 6/8. As they are not equal, it is not a geometric.

Now, Arithmetic difference, d = -88-(-99) or -66-(-88) which is 11 or 22. As they are not equal, it is not a Arithmetic.

So, it's neither an Arithmetic nor a Geometric.

Option B is your answer!

Hope this helps!
User Marc Scheib
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6.8k points