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dybincka [34]
3 years ago
15

State the next term of each sequence a) 1, 16, 81, 256.... b) 1, 1, 2, 4, 7, 13, 24....

Mathematics
2 answers:
Sav [38]3 years ago
7 0
A)
1,16,81,256,\underline{625}\\
\text{The general formula is } n^4 \text{ where } n\in \mathbb{N}

b)
1,1,2,4,7,13,24,\underline{44}\\
\text{Each number is the sum of three preceding numbers.}

Masteriza [31]3 years ago
6 0
A) 1, 16, 81, and 256 are all perfect squares. Find their squares:
1, 4, 9, 14.
In this sequence, you first at 3, then 5, then 7. So, logically, you would add 9 next. 14 + 9 is 23, and 23 squared is 529.
b) I'm not sure the data points for this sequence are correct. I'd have to guess 42 based on this difference chart:
1    1    2     4     7     13     24   42
  +0  +1  +2    +3   +6   +11  +18
      +1  +1  +1    +3   +5   +9
         +0  +0   +2   +2   +4
            <u>+0   +2  +0   +2</u>
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