-11
40
2n+1
209 over 143 in its lowest terms is 19/13 or 16/13
The nth term is 3n+7 and so the next number will be 22
The sequence is Un = 19 - 3n so the 20th term is 19 - 3*20 = 19 - 60 = -41
3n+7
13 and 19.
They are 13 and 19
Josh Hutcherson is 19; as of October 12th 2011(:
16/19 is in its simplest form.
The sequence 13, 14, 15, 16, 17, 18, 19, 20 is an arithmetic progression where each term increases by 1. The nth term can be expressed by the formula ( a_n = 12 + n ), where ( n ) is the term number starting from 1. For example, for ( n = 1 ), ( a_1 = 12 + 1 = 13 ), and for ( n = 8 ), ( a_8 = 12 + 8 = 20 ).
They are 13 and 19 which are prime numbers