1, 4, 9, 16...
What's the next number and the method that the sequence is using?
2007-08-21 12:43:10 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
T[n] = n^2
The next number is 5^2 = 25
1, 4, 9, 16, 25, 36, 49, 64, 81, 100.......
2007-08-21 12:46:33 · answer #1 · answered by gudspeling 7 · 2⤊ 0⤋
Just look at the pattern.
First you add 3, then 5, then 7,
For the next term just add 9 to 16. Eh, I think that's an arithmetic sequence but don't quote me, i did those a long time ago and never memorized the names.
2007-08-21 19:47:38 · answer #2 · answered by Anonymous · 0⤊ 0⤋
This is an old SAT question. The next number is 25. This is a sequence of squares or a number times itself.
1square=1, 2squared=4, 3x3=9. 4x4=16 and...5x5=25. etc. etc.
2007-08-21 20:31:21 · answer #3 · answered by squeezie_1999 7 · 0⤊ 0⤋
The answer would be 25
2007-08-21 19:47:55 · answer #4 · answered by lundjohn_1 1 · 0⤊ 0⤋