Determine whether this sequence is arithmetic or geometric. Find the next three terms.

4. 3, 12, 21, 30, ....
A.40, 50, 60
B.38, 46, 54
C.39, 48, 57
D.36, 32, 39
A?
Thank you

10 answers

A is not the correct answer here unfortunately.

Also, are the "Arithmetic" or "Geometric" parts of the answers missing? They were there for the previous questions I helped you with.
Yea but on my paper it doesn't say it like it does on the previous questions so I kind of got confused.
The answer is C.
Alright, yeah. That's kind of confusing. Still, A is not the correct answer.

A's next 3 terms assume this is an arithmetic sequence, as the common difference is +10. (60-10=50 & 50-10=40). That is not the correct sequence based on the first 4 terms of 3, 12, 21, and 30.
Yes, C is the correct answer. The common difference here is +9, resulting in those next 3 terms, making the entire sequence true.
I know I said it was C now.
Thank you
I'm Sorry. I was typing that, so I didn't see that until I posted that. My apologies.
We write at the same time again. LOL
Yeah. haha. But no problem. I'm glad to be able to help.
Similar Questions
  1. Multiple ChoiceDetermine whether each sequence is arithmetic or geometric. Find the next three terms. 14, 19, 24, 29, . . . (1
    1. answers icon 1 answer
    1. answers icon 1 answer
    1. answers icon 1 answer
    1. answers icon 1 answer
more similar questions