Step-by-step explanation:
For a geometric sequence,
1. The sequence is :
3, 13, 23, 33,...
It is not geometric. It is false
2. The sequence is :
5, -25, 125, -625
So, the sequence is geometric as the common ratio is same. It is true.
There are 10 mangoes inside the basket. Each mango weighs 50grams.Approximately, what is the weight the basket if the basket wit
1 answer:
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Chenoa starts with $250 in her saving account and each month she adds $15 in her saving account.
Therefore, we obtain a sequence as:
250, (250+15), (250+15+15),...
250, 265, 280,....
So, we get the first term () as 250.
Now , we can clearly observe that the first term is 250 and second term is obtained by adding 15 to the first term that is 265 and so on.
Similarly in an arithmetic progression, last term is and its previous term is
.
Similarly, will be obtained by adding 15 to its previous term
.
So, and
=250.
Therefore, Option C is correct.