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168 Answered Questions for the topic Sequences

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
Sequences Math Mathematics

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
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
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
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
Sequences Precalculus

12/15/16

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

 Math question
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.
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.
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
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.
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

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
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.
Sequences Series Calculus 3

11/04/16

Determine whether the sequence is increasing, decreasing, or not monotonic.

Determine whether the sequence is increasing, decreasing, or not monotonic.   an = 1/(6n+7)   Is the sequence bounded? Yes or No? Explain.
Sequences Limits

10/08/16

What is the limit of the sequence

limit n->infinity −(7.2^n+5.5^n/7+3.5^(n+1))?
Sequences

09/24/16

More sequences

To save money for holiday presents, a person deposits $15 in a savings account on January 1, and then deposits an additional $15 every week thereafter until Christmas.   A. Write a sequence for... more
Sequences

09/24/16

Assistant on sequences

The entry level salary for a teacher is $24000 with a 3% increase after every year of service. Write a sequence for the first 5 years of service.   Find the general term of sequence on part A
Sequences Sequence

09/03/16

What is the next number in this sequence: 2, 7, 26, 101, 400, ?

The possible answers are:   15958006951840 1595 800 695 1840  
Sequences

09/02/16

Progressions

In a game a basket and 16 potatoes are placed in line at equal intervals of 6 feet. how long will a competitor take to bring the potatoes one by one into the basket , if he starts from the basket... more
Sequences

08/28/16

Find the sum on terms

find the sum of the terms in the sequence 1,4,7,...,193.

06/27/16

geometric series

The first 3 terms of a geometric expression are x, 10 − x ,and  2x + 1 where x > 0.Find the value of the common ratio, r.
Sequences Sum

06/05/16

Calculate the sum

Calculate the sum: 3+ 7+ 11+ ......+ 399
Sequences

05/31/16

For the geometric sequence, t of 4=54, t of 7=1458 find a, and r

 I know you could just use trial and error to see what you could multiply the ones in between (t5 and t6) by to get from t4 to t7 , but is there a way to do this other than trial and error, like... more
Sequences Algebra 2 Algebra

05/09/16

Finding the general term, in therms of n

What is the general term, in terms of n, for the sequence 4, 8,12, 16, ....?
Sequences Discrete Math Proof

05/03/16

Please help with proof by induction below

let 〈xn〉n=1...∞ be a sequence satisfying xn+1=xn-xn-1 for each n. Prove that ∀ n ∈ N, xn+6=xn by induction

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