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I did 15+30+60+120+240+480+960 to get 1905, then continued the sequence to get 4. Is this right?
I did 15+30+60+120+240+480+960 to get 1905, then continued the sequence to get 4. Is this right?
The pattern in this answer sequence is that each number is being multiplied by 2 to get the next number in the sequence. For example, 15 x 2 = 30, 30 x 2 = 60, and so on.
The last number in this answer sequence is 1905. This is found by multiplying the previous number, 960, by 2.
There are 7 terms in this answer sequence. This can be determined by counting the number of numbers in the sequence, starting from 15 and ending at 1905.
The total sum of all the numbers in this answer sequence is 1905. This can be found by adding each number in the sequence, starting from 15 and ending at 960, and then adding the last number, 1905.
This answer sequence can be written as an arithmetic sequence, with the first term being 15 and the common difference being 15. The formula for an arithmetic sequence is an = a1 + (n-1)d, where a1 is the first term, n is the term number, and d is the common difference. So, the formula for this answer sequence would be an = 15 + (n-1)15.