Please help i cant figure out the next two numbers in this sequence:
(please tell me how you got the answer as well)
1, 2 , 4 , 7, 11, 16......
2007-01-03 13:21:05 · 22 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Sn = 1 + n
1, 2 , 4 , 7, 11, 16......
1st term "1"
2nd term "1 + 1"
3rd term "2 + 2"
4th term "4 + 3"
5th term "7 + 4"
etc.
next two terms are therefore (16 + 6) = 22, and (22 + 7) = 29
2007-01-03 13:22:41 · answer #1 · answered by Esse Est Percipi 4 · 1⤊ 5⤋
It's 22:
1+0=1
1+1=2
2+2=4
4+3=7
7+4=11
11+5=16
16+6=22
2007-01-03 14:18:55 · answer #2 · answered by Anonymous · 0⤊ 0⤋
1, 2, 4, 7, 11, 16, 22, 29, 37.... The pattern for this sequence is the no. go up by 1 or the difference go up by 1. like 1st there's a difference of 1 then 2 then 3 then 4 then 5 then 6 and so on.
2007-01-03 13:28:22 · answer #3 · answered by sagar g 2 · 1⤊ 1⤋
If you look at the problem you notice that the numbers go up in an order: 1,2 = 1+1=2 2,4= 2+2=4 4,7= 4+3=7
1 2 3
so going in order the next number would be 22 becuase 16+6=22. Hope this helps
2007-01-03 13:28:47 · answer #4 · answered by Bruce W 1 · 1⤊ 1⤋
22 and 29
you just simply increase by one the number to add for the next sequence... 1+1=2
2+2=4
4+3=7
7+4=11
11+5=16
16+6=22
22+7=29 and so on...
2007-01-03 13:25:26 · answer #5 · answered by Anonymous · 2⤊ 1⤋
1 + 1 = 2
2 + 2 = 4
4 + 3 =7
7 + 4 = 11
11 + 5 = 16
16 + 6 = 22
22 + 7 = 29
. . . . .
2007-01-03 13:24:50 · answer #6 · answered by Scarp 3 · 1⤊ 1⤋
Constant differences in the differences (everybody saying the differences each time is one more) indiactes a quadratic function, so f(x)=1/2*x*(x-1)+1 works. f(1)= 3/2*1*(1-1)+1 =0+1 =1, etc. With that formula you can figure the 100th term w/o going through all the rest, f(7)= 1/2*7*(7-1)+1 =21+1 =22 so 22 is next......
2007-01-03 15:14:03 · answer #7 · answered by a_math_guy 5 · 0⤊ 0⤋
could be best numbers, wherein case the subsequent 2 are 17 and 19. yet whilst it truly is a polynomial sequence, the finest available answer is: The nth term of that sequence is: -(3/40)n^5 + (5/4)n^4 - (187/24)n^3 + (ninety one/4)n^2 - (437/15)n + 15 consequently: term quantity 7 is: -6 / a million = -6 term quantity 8 is: -89 / a million = -89
2016-10-19 10:38:10 · answer #8 · answered by Anonymous · 0⤊ 0⤋
notice the sequence increases by 1, 2, 3, 4, 5 ?
2007-01-03 14:03:16 · answer #9 · answered by Dr W 7 · 1⤊ 0⤋
+1, +2, +3, +4, +5
+6 = 22
+7 = 29
2007-01-03 13:22:49 · answer #10 · answered by ♥perishedmemories♥ 4 · 2⤊ 4⤋
1
1+1
2
2+2
4
4+3
7
7+4
11
11+5
16
16+6
22
22+7
29
Answer: The next two numbers in that sequence are 22 and 29.
::..
2007-01-03 13:30:01 · answer #11 · answered by aeiou 7 · 1⤊ 0⤋