206 Answered Questions for the topic Sequences

Sequences

07/13/17

Summation of infinite series
Find $\frac{3}{2^2(1)(2)}$ + $\frac{4}{2^3(2)(3)}$ +....+ $\frac{r+2}{2^{r+1}(r)(r+1)} +.... up to infinity.
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Sequences Math Algebra 2 Rules

07/09/17

Write rule for following sequence: 3, 12, 1, 2, 2, 7, 4, 17
 I really need the answer to this!!!!!!! Please oh please :(
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Sequences Math Rules

07/09/17

Write rule for following sequence: (3, 12) (1, 2) (2, 7) (4, 17)
I really don't understand this, and I need to answer this question. Please answer it for me and explain a bit how. Or give me a website i can find how.
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Sequences

06/08/17

What is the sum of the first 22 terms of the sequence -62, -15, 32, 79, ... ?
Not sure how to do this? Answers are either: 878, 9493, 925, 8568 or none
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Sequences

06/01/17

3, -6, 12, 4, 20, ? whats the next number please ?
i have tried a few variations on sequence possibilities but i am not getting the right answer
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Sequences Algebra 2

05/15/17

Find the first 5 terms of the sequence
a1=1 and an= (an-1)2 + 1
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Sequences Algebra 2

05/15/17

Find the first 5 terms of the sequence
If a1=1 and an=(an-1)^2 + 1. 
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05/07/17

(a,b,c,d) the first three one is arithmetic sequence and the last three one is geometric sequence. d-a=3 b+c=?
Please can anyone solve this realy hard sequence problem?
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Sequences

04/02/17

if a sequence is defined by c (sub1)=15 and c (sub n-1)+4 then what is the value of the 20th term of this sequence?
there are choices, but i do not know how to get an answer without doing all the previous 19 terms...is there a formula to use? 1)80 2)91 3)95 4)101
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Sequences

04/02/17

the sequence a (sub1) = 6, a (sub n) = 3a (sub n-1) can also be written as?
an = ?
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Sequences

04/02/17

what formula describes the sequnce: 3, 3/2, 3/4, 3/8, ...
an = ?
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Sequences

04/02/17

a sequence is defined using the rule a (sub n) = 3a (sub n-1) + n.
Find the value of a (sub 4) - a (sub 3). I am expected to show my work.
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Sequences Math Mathematics

01/24/17

Find numbers/sum in sequence
In the sequence 1,4,5,6,7,8,10,16,18,... each number after the first two is the next number that can be expressed as the sum of two previous numbers in only one way. For example,10 is included... more
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01/23/17

May I have help with a challenging math problem, please show and explain work
In the sequence 1,4,5,6,7,8,10,16,18,... each number after the first two is the next number that can be expressed as the sum of two previous numbers in only one way. For example,10 is included... more
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Sequences Algebra 2

01/19/17

I need help with this question
The first four terms of a sequence are 3/2, 15/16, 75/128, and 375/1024. Determine S24. Round your answer to four decimal places
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Sequences

01/18/17

Can you help me solve this?
On January 1, 2026 Janice put $450 in a savings account. She had to choose between two accounts. The account at her mothers bank pays 4.2% interest once at the end of the year. The account her... more
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Sequences Algebra

12/21/16

List the first four terms of the sequence defined by the nth term
a. bn = 2n + 3   b. dn = (-1)n • n2
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Sequences Precalculus

12/15/16

Write a recursive formula for the sequence. Then find the next term... 15, 26, 48, 92, 180
 Math question
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Sequences

12/01/16

Sequences 12
Determine whether the sequence is arithmetic. If it is, find the first term and the common difference.   an=2n+6, n≥1.   Please show Step by Step work for solution and provide final answer.
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Sequences

12/01/16

First 5 Terms of Sequence 4.11
Write the first five terms of the recursively defined sequence:   a1=7, an+1=-2an+3.   Please show Step by Step work for the solution as well as provide the final answer.
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Sequences

12/01/16

Sequence.5
Let an represent the nth term of the sequence 1, -1,2,-2,3,.... Is the sequence arithmetic?   Yes or No? give reason for answer.   (a) yes. Because the common difference is -2 (b) no because... more
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Sequences

12/01/16

Find Second Term in Sequence4.2
consider the sequence defined recursively as:   a1=25 and an+1=(-1)n/5an   The second term is??   Please help and show every step to the problem and the final solution.
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Sequences Music Piano

11/28/16

Music Sequences
Musical tones. The note middle C on a piano is tuned so that the string vibrates at 262 cycles per second or 262 HZ (Hertz). The C note one octave higher is tuned to 524 HZ. The tuning for the 11... more
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11/21/16

AP Calc BC Sequences question...?
If a1+a2+a3+...+a80=2012 and the sequence has a common difference of 5, what is the sum of a2+a4+a6+...+a80? I cannot figure out how to do this! Any help is appreciated (and no, I'm not allowed to... more
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Sequences Series Calculus 3

11/04/16

PLEASE HELP with SEQUENCES!! Determine whether the sequence is increasing, decreasing, or not monotonic.
Determine whether the sequence is increasing, decreasing, or not monotonic.   an = 4n(−7)n   Is the sequence bounded? Yes or No? Explain.
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