Question 161819This question is from textbook Algebra 1
: Please can you help me with Arithmetic Sequences because I don't know how to
do it. The problem say determine whether each sequence is an arithmetic
sequence. If it is, state the common difference.
The problem is 2.1,4.2,8.4,17.6,....
Thanks for your help because I don't get how to do it so if you help me out to
were I can do it on my own then thanks a lot.It's on page 236 my teacher wants
me to do all the even numbers on the practice and apply.
This question is from textbook Algebra 1
Found 2 solutions by checkley77, Mariah24:
Answer by checkley77(12844)   (Show Source):
You can put this solution on YOUR website! 2.1,4.2,8.4,17.6,....
This is not an arithmetic sequence.
The multiplier is (2) IF the fourth term is 16.8 instead of 17.6.
2.1,4.2,8.4,16.8,33.6,67.2,...
Answer by Mariah24(4) (Show Source):
You can put this solution on YOUR website! Now this one is different just because its got decimals,but that doesnt mean that its difficult!
The problem is 2.1,4.2,8.4,17.6,....
4.2-2.1=2.1
Now 2.1 to 4.2 is 2.1 (add)
If each decimal is going up or increasing by 2.1 the yes it is arthemetic. Lets see- 4.2+ 2.1=6.3 NO
8.4 +2.1=9.5 NO
No this problem has no common difference.
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