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Q: Give the next two terms in the sequence 1 5 9 13?

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Fibonacci sequence

It is 4374

The terms in the sequence are increasing by 0.08 every time. In this case, the next two terms in the sequence are 1.32 + 0.08 = 1.40 and 1.40 + 0.08 = 1.48.

It looks like the Fibonacci sequence grouped in two terms and up. The next should be 8132134.

Fibonacci sequence

Double it every time and so the next number will be 80

-1 -3

Since each term appears to be half of the previous term, the next two in this sequence would appear to be: 6, 3.

They appear to be 13 and 17

It is 3 followed by 1

312213 212223

R and P

125 or 12.5, depending on if decimals are allowed. mostlikely 125 though.

The Fibonacci sequence is infinite. The next two terms are 89 and 144.

-17, -21 Pattern is subtract 4.

the numbers next in series are 35,43,51,... any two consecutive terms has a difference of 8

This is called a Fibonacci series after the Italian mathematician who described it.

1 8 27 64 125 216 343

1, 2, 4

Ignoring the "9" , then this is a Fibonacci sequence. 2,2,4,6,10 The first two terms are 'seed' terms then successive terms equal the sum of the two previous terms. 2 + 2 = 4 2 + 4 = 6 4 + 6 = 10 The next term would be 6 + 10 = 16.

arithmetic sequence this is wrong

The series appears to be an arithmetic series in which the n'th term is 1.5 + (n - 1)2.5. If so, the next two terms are 11.5 and 14.

The next two terms are 1.4 and 1.48 because you keep adding the number by 0.08 to get your next terms.

This is a Fibonacci sequence with alternate terms omitted. The first two numbers in the Fibonacci sequence are 0 and 1, and each subsequent number is the sum of the previous two. (0),1,(1),2,(3),5,(8),13,(21),34,(55),89 The bracketed terms are the omitted terms. The next number would thus be 89

Grover Cleveland was the one.