2007-06-27 05:02:55 · 3 answers · asked by PATNAITE 1 in Science & Mathematics ➔ Mathematics
39
The n'th element in the sequence is n, appended to n^2.
1^2 = 1 -> 11
2^2 = 4 -> 24
3^2 = 9 -> 39
4^2 = 16 -> 416
5^2 = 25 -> 525
2007-06-27 05:05:56 · answer #1 · answered by McFate 7 · 0⤊ 0⤋
The first digit in each is a series 1,2,3,4,5....
(1)1
(2)4
(3)? - This is the number we want to find.
(4)16
(5)25
To obtain the second half of the number, square the first which gives you...
1^2 = 1
2^2 = 4
3^2 = ? - Number we are looking for again.
4^2 = 16
5^2 = 25.
The answer is 3^2 = 9. Therefore from the start we know that the number begins with (3). So the answer is 39.
2007-06-27 12:38:29 · answer #2 · answered by Anonymous · 0⤊ 0⤋
itzz sumthin like...
1 square is 1 add 10 to it... it becums 11
2 sqquare is 4 and add 20 to it it is 24
3 square is 9 add 30 to it...answer is 39
2007-06-27 12:15:18 · answer #3 · answered by yuv 1 · 0⤊ 2⤋