They are: nth term = 6n-4 and the 14th term is 80
The nth term is: 3n+2 and so the next number will be 20
The nth term of this sequence is 3n + 4
The nth term of the sequence is expressed by the formula 8n - 4.
It is: nth term = 6n-4
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, ...
Given n and any number for the nth term, it is a simple matter to find a rule such that the above four numbers are the first four of a sequence and the given number in the nth position.However, the simple answer for simple questions is Un = 4n
This appears to be a declining arithmetic series. If it is, the next term is 5, because each term is 3 less than the preceding term.=================================The 'N'th term is: [ 23 - 3N ].
[ 6n + 8 ] is.
It is: 26-6n
Un = 29 - 9n
8 + 4n
The nth term is: 5n
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.
f(n) = 14 - 6n -6n+20
20 - (3 * (n - 1))
t(n) = n2 + n + 8
Difference is 5,7,9,11,13 Second difference is 2 (2x)^2 gives 4,9,16,25 Difference between 2x^2 and sequence is -5 Thus, the nth term will be (2n)^2-5
a (sub n) = 11 + (n - 1) x d
Divide the sequence by 5 and the answer becomes very obvious: 1, 4, 9, 16,...N2 So, 5, 20, 45, 80,...5N2
8 + (74 x 6) = 75th term. nth term = 8 + 6(n-1)