Q: What is the nth term of this sequence 3 5 7 9 11?

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The nth term in this sequence is 4n + 3.

81

One of the infinitely many possible rules for the nth term of the sequence is t(n) = 4n - 1

The nth term is 4n-1 and so the next term will be 19

1...2....3....43...7...11..157 - 3 = 411 - 7 = 415 - 11 = 4(the start of the nth term is 4n)4 x 1 = 4(but the first term is 3, so...)4 -1 = 3nth term = 4n - 1

9

Double it minus the previous number.

The nth term for that arithmetic progression is 4n-1. Therefore the next term (the fifth) in the sequence would be (4x5)-1 = 19.

The nth term of a sequence is the general formula for a sequence. The nth term of this particular sequence would be n+3. This is because each step in the sequence is plus 3 higher than the previous step.

The nth term is 5n-3 and so the next term will be 22

3,6,9,12.....

If you mean: 3, 4, 5, 6 and 7 then nth term = n+2

The nth term is 2n+5 and so the next number is 17

tn = 2x2 + 3 where x = 1, 2, 3, ...

12 - 5(n-1)

If 3 is the first term, then the nth term is [ 3 x 2(n-1) ] .

I suspect that the first term should be "negative 3", ie the sequence is -3, 1, 5, 9, 13, 17, ... The nth term is 4n - 7

If 3 is the first term, then the nth term is [ 3 x 2(n-1) ] .

If you mean: 15 11 7 3 then the nth term is 19-4n

First look for the difference between the terms, for example the sequence: 5, 8, 11, 14... has a difference of 3. This means the sequence follows the 3 times table - i.e. 3n Now since we need the first term to be 5 we add 2 to our rule to make it work. So the nth term of this sequence is 3n + 2.

7n - 4

The simplest, out of infinitely many possible answers, is the linear polynomial,U(n) = 4n - 1 for n = 1, 2, 3, ...

nth term is 8 - n. an = 8 - n, so the sequence is {7, 6, 5, 4, 3, 2,...} (this is a decreasing sequence since the successor term is smaller than the nth term). So, the sum of first six terms of the sequence is 27.

If you mean -1 3 7 11 15 then the nth term is 4n-5 and so the next term will be 19

t(n) = 3*n

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