157 Answered Questions for the topic Sequences

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

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...
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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

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,…}.

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...
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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)...
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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...
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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...
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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

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

05/29/15

#### Sequences, Find a general term

Find a general term an for each sequence, whose first four termsare given.
3, 7, 11, 15
-------------------------------------------------------
Q: What is the formula for this type...
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05/21/15

#### the population at west is decreasing at a rate of 1% annually. find the number of students in 13 years.

the unit is sequence and i have to have the equation in explicit form, and know how to plug. but i get stuck there.
A1= 2462 is the first year they open of students.

04/07/15

#### Find the first terms of the sequence given the following recursive formula

a1 =8, a2=-3, and an=2an-1+an-2 for n≥3
enter the terms separated by commas

03/28/15

#### An Isotope has a half-life of 15 days. Make a table showing the half-life of this isotope from 32 g to 1 g. List the time (in days,starting with t = 0) in the

...in the first column and the mass remaining in the second column. Which type of sequence is used in the first column and in the second column?
I do not know where to begin on solving this...
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03/26/15

#### Find the next two terms in the following sequence

13,-5,-35,-77,...
enter the terms separated by a comma

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