8 + 4n
what is the pattern for the following 3, -6, 12, 4, 20
The sequence alternates between dividing by 2 and adding 4. Starting with 72, we divide by 2 to get 36, then add 4 to get 40, divide by 2 to get 20, and so on. Following this pattern, the next number in the sequence would be 8 (16 divided by 2).
Give the simple formula for the nth term of the following arithmetic sequence. Your answer will be of the form an + b.12, 16, 20, 24, 28, ...
The nth term of the sequence -4 4 12 20 29 is 8n+12 because each time the sequence is adding 8 which is where the 8n comes from. Then you take 8 away from -4 and because a - and - equal a + the answer is 12. Which is where the 12 comes from. Hope I helped.
8 + 4n
If you mean: 5, 10, 20, 40 then the following number is twice the previous number which will be 80
The pattern appears to be: subtract 6, add 17, subtract 14, add 9, subtract 7. Following this pattern, the next number should be obtained by adding 3 to the last number in the sequence, which is 6. Therefore, the next number in the sequence is 9.
what is the pattern for the following 3, -6, 12, 4, 20
The sequence alternates between dividing by 2 and adding 4. Starting with 72, we divide by 2 to get 36, then add 4 to get 40, divide by 2 to get 20, and so on. Following this pattern, the next number in the sequence would be 8 (16 divided by 2).
Give the simple formula for the nth term of the following arithmetic sequence. Your answer will be of the form an + b.12, 16, 20, 24, 28, ...
From the pattern (n + 4, n + 2, n + ?) I would say the next following number is 20 (n + 1).
It is neither.
12
3, -6, 12, 4, 20, ?
The nth term of the sequence -4 4 12 20 29 is 8n+12 because each time the sequence is adding 8 which is where the 8n comes from. Then you take 8 away from -4 and because a - and - equal a + the answer is 12. Which is where the 12 comes from. Hope I helped.
It is possible to find a polynomial of degree 5 such that any number at all can be made the next number in the sequence. However, using the following 4th degree polynomial, Un = (n4 - 15n3 + 85n2 - 225n + 274)/2 the next number is 20.