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168 Answered Questions for the topic Sequences

04/15/16

A game involves rolling a fair six-sided die. If the number facing upward on the die is a whole number multiple of three, the player wins an amount equal to the

A game involves rolling a fair six-sided die. If the number facing upward on the die is a whole number multiple of three, the player wins an amount equal to the number on the die times $20. If the... more
Sequences

04/08/16

An=2An-1+An-2

find the next four term of the term of the sequence  A 3 A4 A5  A6 A8 
Sequences Sequence Series

02/14/16

Formula nth term series 4,9,16,25

Hello, could you help me find the formula for this series, please? How do I go about it?  4,9,16,25,...I know it starts with adding 5 and adding 2 more with every number, so adding 7 next, then 9,... more
Sequences

01/19/16

Sequence generators

1,1,2,3,5,8
Sequences

12/29/15

Consider two different arithmetic sequences

Consider two different arithmetic sequences: 3, 14, 25, 36,47,58,69,80, successively by 11 and 2, 9, 16,23 successively by 7. What are the first 10 numbers which appear in both sequences
Sequences

12/13/15

(College Precalc) Arithmetic Sequences - Finding the sum given two random terms

A finite arithmetic series has 90 terms with a5=182 and a86=291.6. What's the sum of the series?   I have no idea where to begin. I know to find the sum when I'm given the first few terms and the... more
Sequences

11/18/15

Vivian wrote the following math sequence, 8,16,32,64,108. Using the multiply by 4 rule what is the next number

why dud they use the multiply by 4 rule
Sequences

11/18/15

Formula to find a1 from an=a1+(n-1)d

Need help with the above equation
Sequences

10/19/15

f(1) =1 and f(n)=2*f(n-1) +1 for each whole number greater than 1

help with math problem
Sequences

10/13/15

how many people have heard the rumor by the end of saturday?

on sunday, bill heard a rumor. on monday, he called jan & stan to tell them the rumor. on tuesday, jan and stan each called two of their friends to tell them the rumor. those people then each... more

We have to recurrence relation an = 2an-1 - an-2. Find a2 and a3 if

We have to recurrence relation an = 2an-1 - an-2. Find a2 and a3 if:   a) a0 = 1 og a1 = 0?   b) a0 = 0 og a1 = 1?   c) a0 = 1 og a1 = 2?

09/22/15

Solve this recurrence relation and find a2 and a3?

We have to recurrence relation an = 2an-1 - an-2. Find a2 and a3 if:   a) a0 = 1 and a1= 1? b) a0 = 0 and a1 = 0?  

08/08/15

How many terms are in the sequence -83, -66, -49, -32,...597

Not sure where to begin in order to solve this question... I have no idea how to do it 
Sequences

07/25/15

What is the 10th term in the sequence 1,8,27,64

 Its a sequence and have been stuck on it for ages

07/19/15

sequence/series question. PLEASE HELP!!!!

What is 32nd term if given the following      X                 Y   1                  1 2                  3 3                  6 4                  10     Please help!!!!. I can see... more
Sequences Sat Math Sums

07/17/15

If the sum of 20 consecutive odd integers is 120, then what is the value of the largest integer?

Please and thank you! Your help is greatly appreciated
Sequences

07/05/15

Find a formula for the general term an of the sequence (starting with a1): {-425,536,-649,764,…}.

I want to know the answer for this question Find a formula for the general term an of the sequence (starting with a1):{−425,536,−649,764,…}.
Sequences

07/02/15

sequences topic

two cars start together int he same direction from the same place. the first goes with the uniform speed of 10 m/h .the second goes at speed of 6 m/h in the first hour and increases the speed by... more
Sequences

07/02/15

sequences topic

if 1/2 of the air in a tank is removed with each stroke of a vacuum pump ,what fraction of the original amount of air has been removed after 4 strokes    (a)... more
Sequences

07/02/15

sequences topic

a company sales is described as Sn=2Sn-1 +Sn-2 +1 units , Sn represents the nth sale. if the company experienced a jump in a sale by 70 units between 4th and 5th sale .how many will it sell in the... more
Sequences

07/02/15

sequences topic

(1) the digits of a positive integer ,having 3 digits when taken in order are in arithmetic progression and their sum is 18 .the number obtained by reversing the digits is 396 less than the... more
Sequences

06/29/15

if the series is given as a,b,b,c,c,c,d,d,d,d ....then which term will replicate u?

(a)200 (b)210 (c)215 (d)229 (e)232
Sequences

06/04/15

How to obtain the sum?

Find the sum of the first seven terms of the sequence. 3, 3/2, 3/4,... 3/8, 3/16, 3/32, 3/64So i get that the LCM is 64 but how do i find the sum of all the 3's? Thanks
Sequences

05/31/15

Find the following sum: 1+2+4+8+...+2^k-1

I need help finding the next terms after 2^k-1
Sequences

05/29/15

Find the indicated term for each sequence, whose general term is given.

an=-n2;a15    

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