There are infinitely many possible answers. A simple polynomial is
Un = (5n3 - 18n2 - 11n + 72)/6 for n = 1, 2, 3, ...
1+10 - 2 (2 is one less than 3, the next answer in the sequence) = 9. 10 + 3 - 8 (8 is one less than 9) = 5 3 + 9 - 4 = 8 etc...; so the next two numbers in the sequence will be 11 and 5.
7 is the answer. 10 1 9 2 8 3 7 4 6 5
it is 7
-20, -14, 28
Fibonacci sequence
The Fibonacci sequence is a sequence of numbers where each number in the sequence is the sum of the two numbers right before it. for example: 11235812 <-------Fibonacci Sequence 1 1+1=2 1+2=3 2+3=5 3+5=8 5+8=12
10
10-2x for x = 0, 1, 2, 3, ... Since the domain of an arithmetic sequence is the set of natural numbers, then the formula for the nth term of the given sequence with the first term 10 and the common difference -2 is an = a1 + (n -1)(-2) = 10 - 2n + 2 = 12 - 2n.
the Fibonacci sequence
8. The sequence is +5, -4, +3, -2, +1. 5 + 5 = 10 10 - 4 = 6 6 + 3 = 9 9 - 2 = 7 7 + 1 = 8
+ 7 - 4 + 8 - 3 + 9 - 2 ... +10 so 17 + 10 = 27
t(n) = 10 - 6n where n = 1, 2, 3, ...