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Q: What is the 7th term in the sequence 9, 12, 16, 21?

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36

The nth term is: 4n

8 + 4n

What is the value of the 8th term of the sequence 4, 8, 16, 32,?what is the answers?1,024,512,128or2,048.

Each number in the sequence is the previous number divided by 4. Therefore the 7th term starting from 1024 is 0.25. The first 8 terms are: 1024, 256, 64, 16, 4, 1, 0.25 and 0.0625.

16

16

4 10 16 22 28 34 40 ....... Each term is increased by 6 or nth term = 6n-2

Please note that (a) this is a sequence of square numbes, and (b) the sequence starts at 22.

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.

Clearly, if you omit the sign, the nth. term will be 4n. The alternating sign can easily be expressed as a power of (-1), so in summary, the nth. term is (-1)n4n.

The sequence in the question is NOT an arithmetic sequence. In an arithmetic sequence the difference between each term and its predecessor (the term immediately before) is a constant - including the sign. It is not enough for the difference between two successive terms (in any order) to remain constant. In the above sequence, the difference is -7 for the first two intervals and then changes to +7.

1, 16, 81, 256 14641 is the 11th term.

The 8th term is 64. The sequence is the squares of the counting numbers. The nth term is given by t(n) = nÂ².

The nth term in the sequence means an unspecified number an unspecified distance along the series. 8 16 32 64 128... n. It is also a shothand notation so the reader knows that the sequence continues.

6n+10

n2

It is 32768.

It would be 16. The sequence is doubling pairs. 3 and 4 go on to be 6 and 8. 6 and 8 would go on to be 12 and 16. 12 and 16 would go on to be 24 and 32, and so on.

It is: 34

the series can be 1,-4,16,-64

16

The eighth term of the series 4, 8,16,32 is 512. Each term is twice the previous term.

They could be 5, 16 and 8 because if a previous term was even then half the next term but if the previous term was odd then treble it and add one to the next term.

The sequence S = 2, 2, 4, 6, 10, 16, 26, ... is the Fibonacci sequence multiplied by 2. Like the Fibonacci sequence, each term is found by adding the two previous terms, so Sn = Sn-1 + Sn-2.