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Un = 29 - 9n
The given sequence is 11, 31, 51, 72 The nth term of this sequence can be expressed as an = 11 + (n - 1) × 20 Therefore, the nth term is 11 + (n - 1) × 20, where n is the position of the term in the sequence.
20-9x=n
a (sub n) = 11 + (n - 1) x d
They are: nth term = 6n-4 and the 14th term is 80
Un = 29 - 9n
The nth term of the sequence is expressed by the formula 8n - 4.
The given sequence is 11, 31, 51, 72 The nth term of this sequence can be expressed as an = 11 + (n - 1) × 20 Therefore, the nth term is 11 + (n - 1) × 20, where n is the position of the term in the sequence.
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, ...
20-9x=n
The nth term is: 3n+2 and so the next number will be 20
a (sub n) = 11 + (n - 1) x d
20 - (3 * (n - 1))
Assuming 20 is n = 1, then the formula would be:27-7n
It is: nth term = 6n-4
They are: nth term = 6n-4 and the 14th term is 80
560