What is the nth term for -1 11 31 59 95 139?

Answer 1

To find the nth term of this sequence, we first need to identify the pattern. The differences between consecutive terms are 12, 20, 28, 36, and 44. These are increasing by 8 each time. This means the second difference is constant, indicating a quadratic sequence. By calculating the second difference, we can determine the equation for the nth term. The nth term for this sequence is n^2 + 10.

Answer 2

Well, honey, the nth term for that sequence is n^3 + 5. So, if you're looking for the 1st term, plug in n=1 and you'll get -1. If you're feeling fancy and want the 6th term, just plug in n=6 and you'll get 139. Math can be fun when you're sassy about it!

Answer 3

Un = (-n5 + 20n4 - 155n3 + 820n2 - 1044n + 420)/60

Answer 4

t(n) = 4*n2 - 5