Monday

April 21, 2014

April 21, 2014

Number of results: 8,111

**SeQuEnCeS and SeRiEs: HELP PLZ!**

thanks:-)
*Friday, January 4, 2013 at 2:19pm by kazz*

**Series and sequences**

Three numbers a,b, and c form a geometric series so that a+b+c=35 and abc=1000. Find the values of a,b,c.
*Thursday, January 3, 2013 at 3:43pm by Shaira*

**Math**

In sequences and series::: I dont understand the difference between (for arthemtic series) the equations 1) sn= t/2(ti-tn) 2) (n* n-1)/2 where would you use each one and how are they different?
*Tuesday, December 12, 2006 at 7:50pm by mary11*

**Biology**

When making comparison of sequences where some are whole genome sequences while others are partial genome sequences, or a specific glycoprotein sequence, How is it that we are able to make comparisons from these sequences if they all have different lengths?
*Sunday, April 21, 2013 at 5:37pm by Cristian*

**Math**

I'm learning series and sequences (grade 11). Please check that my steps show I understand what I'm doing/the concept and my answer as well: 5. The consecutive terms of an arithmetic sequences are 3.6, y, 8.2. Find the value of y. This seems to be a sequence question but I ...
*Tuesday, January 8, 2013 at 6:02pm by Crystal*

**SeQuEnCeS and SeRiEs: HELP PLZ!**

The first three terms of the sequence -8,x,y,72... form an arithmetic sequence, while the second, third and fourth terms form a geometric sequence. Determine x and y.
*Friday, January 4, 2013 at 2:19pm by kazz*

**Algebra 2: Sequences and Series**

The way the question is phrased suggests that not all of it has actually been posted. "Evaluate the related series" doesn't mean anything on its own - at least, not to me. Has your teacher defined a "related series" to be the sum of the individual elements of that series? This...
*Saturday, April 3, 2010 at 5:37am by David Q/R*

**Algebra**

Using the index of a series as the domain and the value of the series as the range, is a series a function? Include the following in your answer: Which one of the basic functions (linear, quadratic, rational, or exponential) is related to the arithmetic series? Which one of ...
*Sunday, October 29, 2006 at 11:19am by V*

**Math**

Using the index of a series as the domain and the value of the series as the range, is a series a function? Include the following in your answer: Which one of the basic functions (linear, quadratic, rational, or exponential) is related to the arithmetic series? Which one of ...
*Saturday, October 28, 2006 at 11:19pm by Vianna*

**Functions 11: Series and Sequences**

But they are not geometric sequence..
*Wednesday, January 2, 2013 at 1:24pm by lg*

**Algebra 2: Sequences and Series**

I have this question and I don't understand what it's asking for. It says evaluate, is it asking for the missing term or what? The sequence 21, 23, 25, 27, 29, ..., 41 has 11 terms. Evaluate the related series. * 320 * 341 * 300 * 166 Very confused, any insight on how to solve...
*Saturday, April 3, 2010 at 5:37am by Skye*

**math(sequences)**

0.5,1.5,4.5,13.5,... what is the next three terms??? plz help
*Tuesday, September 9, 2008 at 7:40pm by n'kyla*

**math**

what method i need to use in solving arithmetic and geometric sequences and series?
*Saturday, February 16, 2013 at 6:44am by luis*

**math**

Copy your question in google. When you see list of resulta go on : w w w . a l g e b r a . c o m › Sequences-and-series
*Thursday, February 13, 2014 at 8:49pm by Bosnian*

**math**

what formula use in solving or finding for the 9th term of a number in arithmetic series and sequences?
*Saturday, February 16, 2013 at 6:48am by luis*

**SeQuEnCeS and SeRiEs: HELP PLZ!**

y-x = x+8 y/x = 72/y y = 2x+8 (2x+8)/x = 72/(2x+8) 4x^2+32x+64 = 72x 4x^2-40x+64 = 0 x^2 - 10x + 16 = 0 (x-2)(x-8) = 0 x=2,8 y=12,24 so, we have -8,2,12,72 or -8,8,24,72
*Friday, January 4, 2013 at 2:19pm by Steve*

**Algebra 2: Sequences and Series**

In simple terms, for a sequence you would list the terms, in a series you would add the terms so you want 21+23+25+ ... + 41 this is an arithmetic series with a = 21, d=2 and n = 11 the sum of those terms using sum = n/2(first term + last term) = 11/2(21+41) = 341
*Saturday, April 3, 2010 at 5:37am by Anonymous*

**Sequences and Series**

PreCal. What is the difference between the equations (n(n+1))/2, and n/2(ti+tn)?? Under what conditions would you use them? Thanks much!!!
*Wednesday, January 10, 2007 at 9:09pm by Cait*

**Functions 11: Series and Sequences**

4m + 1, m + 1 and 10 - m are the first three terms of a geometric sequence. Find t4.
*Wednesday, January 2, 2013 at 1:24pm by lg*

**Functions 11: Series and Sequences**

since the difference is constant, (m+1)-(4m+1) = (10-m)-(m+1) m = -9 so the sequence is -35, -8, 19, 46, ...
*Wednesday, January 2, 2013 at 1:24pm by Steve*

**biology**

Below the human hemoglobin sequence are the first thirty amino acid sequences of several other species’ hemoglobins. Inspect the sequences and answer the following questions: Human) h l t p e e k s a v t a l w g k v n v d e v g g e a l g r l A) ml t a e e k a a v t a f w g k v...
*Sunday, April 1, 2012 at 7:18pm by Kim*

**math sequences and series**

1) 1/2 2) 1/2 + 1/(2*3) = 1/2 + 1/6 = 2/3 3) 2/3 + 1/(3*4) = 2/3 + 1/12 = 3/4 4) 3/4 + 1/(4*5) = 15/20 + 1/20 = 4/5 LOL - See a pattern?
*Monday, May 31, 2010 at 7:40pm by Damon*

**math 12 - sequences and series**

Given the expression Sn = n^2 + 2n for the sume of the first n terms of a series, determine a) An expression, in simplified form, for Sn-1 in tmers of n b) an expression, in simplified form, for the nth terms, tn in terms of n
*Monday, March 1, 2010 at 7:26pm by CL*

**Math**

sorry i would not do that again but can you please answer these questions because i really need them because i have a exam tommorow at 1 pm. i posted them in a series because i have so less time to study, that i was not even thinking write and i just posted them all but can ...
*Thursday, January 22, 2009 at 5:59pm by gagan*

**word unscramble**

plz plz plz plz help me have to give it tommorow. it has to school items only. the four words are that need to be unscramble. 1. EEFILNPPTT 2. AEHIRSSTTW 3.EEHKOSSUY 4. CEGHLMOSTY SO PLZ HELP I REAlly wannt to know what it is plz help.
*Thursday, September 28, 2006 at 3:34pm by shruti*

**maths**

your last 3 postings all deal with the basic definitions of sequences and series and involve translating the English statements into mathematical expressions. Why don't you show me what you have done for this one so far, and I will gladly help you further.
*Sunday, February 21, 2010 at 8:10am by Reiny*

**LIVING ENVIRONMENT**

the ability to grow in size is a characteristic of living organism .Although an icicle may grow in size over time,it is considered nonliving because there is 1)an incerase in matter ,but no increase in the number of icicle. 2)an interaction between the icicle and the ...
*Tuesday, February 12, 2013 at 9:14pm by tania sharmin*

**Hard Algebra**

I dont think we are working on series and sequences becuase that stuff doesnt look familiar... we are just doing logorithms and ln stuff... is there any other way you can expand it? thanks! Shikra
*Sunday, May 1, 2011 at 10:51am by Shikra*

**Series and sequences**

abc = a^3r^3 = 1000 since 1000 = 10^3, we must have a=2,r=5 or a=5,r=2 Looks like 5,10,20
*Thursday, January 3, 2013 at 3:43pm by Steve*

**Hard Algebra**

Are you working on series and sequences? For example, ln(1+x) = x - (x^2)/2 + (x^3)/3 -(x^4)/4... where |x|<1 or ln(x) = (x-1) - ((x-1)^2)/2 + ((x-1)^3)/3 -.... where 0<x≤2 etc.
*Sunday, May 1, 2011 at 10:51am by MathMate*

**Math**

LEONARDO FIBBONACCI(1170-1250)WAS A ITALIEN MATHEMATICIAN . HE DISCOVERED SPECIFIC TYPE OF SEQUENCE HAVING IMPORTANT APPLICATIONS ON MATHAMATICS.JAMES GREGORY USED THE TERM INFINITE SERIES IN CONNECTION WITH INFINIE SEQUENCES
*Saturday, September 11, 2010 at 9:55pm by yukti*

**math sequences and series**

how do i solve if t1=1/2 and tn=tn-1+1/n(n+1), determine an explicit formula for the general term. (hint: it is neither arithmetic nor geometric. write out the first few terms)
*Monday, May 31, 2010 at 7:40pm by alicia*

**I NEED HELP!!:(!!!! HELP ME PLZ!!**

I GOT A FEW QUESTIONS SO what is a cell part that has the funcion of a gel-like material inside cells... and what releases energy into the cell.?? plz plz plz plz HELP!!!
*Tuesday, October 20, 2009 at 8:48pm by i really need help!!*

**Social Studies**

I am doing an ABC book to for Florida and i need a word for the letter X to. IT is due MAY 26 , 2010!!!!!!!!!!!!!!!! I need HELP PLZ PLZ PLZ PLZ PLZ THANKS :)
*Friday, May 7, 2010 at 3:55pm by angel*

**Biology**

Humans and Gorillas are very similar in terms of their genetic sequences; in a sample of each of their DNA sequences, only ONE difference was found. MY QUESTION: What genetic mechanism could cause this base sequence change? Thanks!
*Wednesday, June 4, 2008 at 12:58pm by Millwright*

**Math**

1st term = x 2nd term = x-.5 3rd term = x - 2(.5) .... 10th term = x - 9(.5) = x - .45 ... 14th term = x - 13(.5) = x - 6.5 t th term = x - (t-1)(.5) I assume you are studying sequences and series. Do you recognize the arithmetic sequence pattern ?
*Tuesday, February 19, 2013 at 6:35am by Reiny*

**math**

If there were 1 question, there would be two possible sequences: T or F If there were 2 questions, there would be 4 possible sequences: TT TF FT FF So, if there were n questions, each can be answered in 2 ways, so you have 2^n possible sequences. Note: your question was not T/...
*Sunday, October 9, 2011 at 12:58pm by Steve*

**Excel Help**

3) __________ are used to compare sets of data in one chart. Time series Multiple data series Relative series Comparison series Is multiple data series
*Sunday, July 12, 2009 at 10:29pm by Bryan*

**sequences and series**

how do i solve the sum of the first two terms of an arithmetic sequence is 16. the sum of the second and third term is 28. determine the first three terms, algebraically
*Monday, May 31, 2010 at 7:34pm by alicia*

**MATH!!!! SEQUENCES!!!**

Find out a formula for the Nth term of each of the following sequences. (i)4 7 10 13 16 (ii)1 3 5 7 9 (iii)20 17 14 11 8 (iv)1 4 9 16 25 (v)2 8 18 32 50
*Wednesday, December 14, 2011 at 9:55am by Howler*

**math sequences and series**

how do i solve the sum of the first two terms of an arithmetic sequence is 16. the sum of the second and third term is 28. determine the first three terms, algebraically
*Monday, May 31, 2010 at 7:42pm by alicia*

**social studies**

plz plz plz plz i NEED help! awnser this question plz! my poster is do tomorrow! i NEED help!
*Sunday, March 30, 2008 at 8:15pm by mia*

**Math ....urgent help**

i just dont get this elimination method ..... plz help me plz.....teach me how to keep the x and y in a parallel line. and which number to multiply.....plz help -5x-4y=-11 10x=-6-y help me plz......
*Wednesday, January 7, 2009 at 5:01pm by vero*

**Algebra 2 Honors**

Right now in my class i am learning about sequences and series and im currtently suck on this problem. "A certain sequence is defined recursively by the t1=1 , t2=2, t2n=2t2n-2, t2n+1=3t2n-1. Find the first eight terms of the sequence." thanks for your help.
*Monday, May 12, 2008 at 9:13pm by Stephanie*

**Calculus Infinite Geometric Series**

You have missed some basic material. if r is between -1 and 1, the series converges, and you can get an infinite series sum If r is greater than 1, or less than -1, the series gets larger and larger, and diverges, and you cannot get a sum. Consider the series as 10+100+1000+...
*Monday, September 19, 2011 at 8:27pm by bobpursley*

**biology**

a boy inherits genes for tallness,but his growth is limited as a result of poor nitrition. this is an example of 1)an inherited disorder. 2)environmental influence on gene expression . 3)expression of a hidden trait 4)a characterstic controlled by more than one pair of genes. ...
*Friday, February 8, 2013 at 12:44pm by tania sharmin*

**IB Math Studies**

I saw a similar post earlier. I also want to see who has better memory out of men and women. I was thinking of testing ability to remember a series of simple objects or number sequences. Could I use chi-squared, HOW could I use it? Any other sophisticated processes? thanks.
*Tuesday, September 18, 2012 at 5:09am by Louis*

**8th grade math**

Well, the 23 is a typo, as you should have figured out from the original problem. I meant to say 3 6 9 12 ... There's nothing official about "interlocking sequences" but if you can see some other pattern than the mixing of those two simple sequences, be my guest.
*Sunday, August 25, 2013 at 6:39pm by Steve*

**Calculus**

Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and y from: x(</=)(+/-)3(+/-)1(+/-)(1/3)(+/-)...(</=)y. (B) Can you choose the signs to make the series diverge? (C) Can you choose the signs to ...
*Wednesday, April 21, 2010 at 5:51pm by Megan*

**calculus**

Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and y from: x(</=)(+/-)3(+/-)1(+/-)(1/3)(+/-)...(</=)y. (B) Can you choose the signs to make the series diverge? (C) Can you choose the signs to ...
*Thursday, April 22, 2010 at 2:23am by Megan*

**calculus**

Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and y from: x(</=)(+/-)3(+/-)1(+/-)(1/3)(+/-)...(</=)y. (B) Can you choose the signs to make the series diverge? (C) Can you choose the signs to ...
*Thursday, April 22, 2010 at 9:54pm by Megan*

**English (plz read)**

I'm creating is HUGE book series. Can you check to see if the blurb is good. The series follows the journey of a teenage girl who is determined to have best year ever in the 8th grade and to have the best 4 year experience in high school. Please make sure if they any grammer ...
*Sunday, July 22, 2012 at 3:06pm by Laruen *

**physics,plz.....give me answer as soon as possible**

plz plz plz.....help me
*Wednesday, November 24, 2010 at 11:35am by sweetie*

**math**

number of sequences starting with 3,4, or 5 without any restrictions at the end = 3x10x10x10 = 3000 but we don't want the numbers 3000, 4000 and 5000 so the number of sequences as stated is 3000 - 3 = 2997
*Sunday, November 22, 2009 at 1:26pm by Reiny*

**Good Reads? 6th and 7th grade**

They Cay Walk to Moons The Hunger Games Series Travels with Charley A Year Down Yonder Charlotte's Web Harry Potter Series Percy Jackson Series Diary of a Wimpy Kids Series Holes
*Tuesday, May 24, 2011 at 7:28pm by Elina*

**math**

How many n-digit decimal sequences (using digits 0-9) are there with k 1s? Decimal sequences meaning you can have as many 0s in front of a number. For example: 000001234557891111 would be consider valid. So how do i come up with an equation? See my response to Sana's question ...
*Sunday, October 15, 2006 at 10:38am by Aisha*

**Plz help!!! algebra **

convert the decimal 0.6 to a fraction by writing it as a infinite series. I really have no idea how to do this can anyone please help me?
*Saturday, April 14, 2012 at 1:48pm by ashley*

**science**

someone plz plz plz plz plz plz plz plz plz help me!
*Friday, February 8, 2013 at 1:24pm by corie*

**Maths**

Consider all 3-term geometric sequences with first term 1 and with common ratio the square of an integer between 1 and 1000. How many of these 1000 geometric sequences have the property that the sum of the 3 terms is prime?
*Monday, April 29, 2013 at 4:13am by ianian*

**algebra**

Consider all 3-term geometric sequences with first term 1 and with common ratio the square of an integer between 1 and 1000. How many of these 1000 geometric sequences have the property that the sum of the 3 terms is prime?
*Monday, April 29, 2013 at 11:27am by deli*

**Math**

Consider all 3-term geometric sequences with first term 1 and with common ratio the square of an integer between 1 and 1000 (inclusive). How many of these 1000 geometric sequences have the property that the sum of the 3 terms is prime?
*Wednesday, May 1, 2013 at 11:21pm by Maths lover Please Help...*

**Calculus**

a) Find the Taylor series associated to f(x) = x^-2 at a = 1. Be sure to show the general term of the series. b) Find the radius of convergence of the series. c)Use Lagrange's Remainder Theorem to prove that for x in the interval of convergence with x > 1; the power series ...
*Monday, August 8, 2011 at 8:30pm by laura*

**math**

hi if i wanna find the Maclaurin series from another existing series by integrating that series , do i need to include the constant of integration ?? Thanks
*Sunday, May 16, 2010 at 4:08am by William*

**math**

for this infinite series (-1)^n/n^2 if i use alternating series test to show that sequence does of a^n does not go to 0, then does this mean that this series is diverging
*Tuesday, July 27, 2010 at 7:49pm by eng*

**Climate Graphs**

i need a climate graph for japan now plz my teacher will kill me plz plz plz
*Saturday, January 13, 2007 at 10:51pm by harry*

**English**

For the essay I have to write I have to talk about examples of sequences and montages (which are transitional sequences of rapidly edited images) for the movie "The Gold Rush" by Charlie Chaplin. I'm having a hard time with examples of montages. Can you help please?
*Monday, September 26, 2011 at 8:32pm by Jon*

**Arithmetic Series - - Reiny**

Consider the series defined by Sn = 3n-1 Find the first four terms of the series. How exactly do I do this?
*Monday, September 12, 2011 at 11:35pm by Anonymous*

**math**

the last two tems in a geometric series are 1080 and 6480 and the sum ofthe series is 7775 what is the first term in the series
*Sunday, December 18, 2011 at 2:29pm by Heather*

**Calculus**

Determine the following about the series. Indicate the test that was used and justify your answer. Sigma (lower index n = 1; upper index infinity) [sin((2n-1)pi/2)]/n A. The series diverges B. The series converges conditionally. C. The series converges absolutely. D. It cannot...
*Monday, February 11, 2013 at 6:06pm by Jenny*

**biology**

DNA is double stranded. It splited out into two single strand and produce another new strand and that created more DNA. Next, the DNA sequences are translated into amino acids. For every 3 base sequences, that would represent a single amino acid. There are specific sequences ...
*Tuesday, January 29, 2008 at 2:50pm by jAKE1214*

**Sequences**

Find the rule for number 2, which is a geometric series. You can tell if it is a geometric series by dividing any term by the previous. If the quotient is the same, then it is a geometric series. The rule for a geometric sequence is: t(n)=ar^n and r is the quotient by dividing...
*Saturday, May 25, 2013 at 10:42am by MathMate*

**chem**

Your question isn't clear at all as to what you are asking; however, the activity series (EMF series) arrangement is this. An element in the series will displace the ion of another element below it in the series. Therefore, Al will displace Pb^2+, Zn will displace H^+ etc.
*Tuesday, January 24, 2012 at 12:49am by DrBob222*

**calculus**

im confused. I was taught that if it is an alternating series then you can only use the alternating series test to see if it was diverging or converging. And i did the alternating series test and all the conditions were met for each series seperately.
*Sunday, July 31, 2011 at 8:12pm by amber*

**English**

No the question already post it, plz help me ...plz ...plz ...any one... my native language is not english.. plz help me..
*Saturday, July 24, 2010 at 10:46pm by shan*

**C++**

I suggest you talk to the teacher or the author of the website and explain that the series diverges. If it is a public site, I'd like to know the link. On the other hand, I don't know if you got the right web site, I believe your question probably started with: "Write a MAIN ...
*Friday, March 9, 2012 at 2:40pm by MathMate*

**Calc 2, Series/Sequences**

Explain clearly in detail the difference of the summation of n=1 to infinity of 1/n^2; and the integral of 1/x^2dx with the limit of 1 to infinity, as well. Part 2: Explain the natures of the two expressions and explain why the summation is greater than the integral test. The ...
*Thursday, April 1, 2010 at 9:42pm by Alex*

**math**

the volume of a rectangular solid is given by expressions given below.in each case find the dimentions of the solid. a)15x^2-51x+18. b)x^3+13x^2+32x+20. c)x^2-5x/2-3/2. d)x^4+x^3-x-1 plz everyone help me out.till 2 o'clock...plz plz plz
*Wednesday, May 30, 2012 at 4:00am by parul*

**math**

the volume of a rectangular solid is given by expressions given below.in each case find the dimentions of the solid. a)15x^2-51x+18. b)x^3+13x^2+32x+20. c)x^2-5x/2-3/2. d)x^4+x^3-x-1 plz everyone help me out.till 2 o'clock...plz plz plz
*Wednesday, May 30, 2012 at 6:03am by PLZ HELP ME NOW...*

**pscychology**

Could someone pretty plz plz plz help me...What are the 2 biggest parts of the human brain??
*Wednesday, March 11, 2009 at 3:46pm by Logan:)*

**Calculus**

Obtain the MacLaurin series for 1/(2-x) by making an appropriate substitution into the MacLaurin series for 1/(1-x). ------------ The MacLaurin series for 1/(1-x) = Σ x^k I substitue (x-1) in for x, because 1/(2-x) = 1/(1-(x-1)) Making the same substitution in the ...
*Thursday, June 25, 2009 at 7:55pm by Sean*

**Chemistry**

Hydrogen exhibits several series of line spectra in different spectral regions. For example the Lyman series (nf = 1 in Balmer-Rydberg equation) occurs in the ultraviolet region while the Balmer (nf = 2) series occurs in the visible range and the Paschen (nf = 3), Brackett (...
*Sunday, November 10, 2013 at 4:46pm by Andy*

**SCIENCE!!--ANONYMOUS PLEASE ANSWER MY QUESTION!**

plz answer the question we were talking about plz plz. Go back to the problem. I got 184 but the worksheet answer says 136 which is correct?? plz help!! thx
*Monday, September 13, 2010 at 5:41pm by Happy Face*

**chem**

Briefly, the series starting with n=2 to n=1, and going to n= 10 to n=1, are much more energetic than those of the other series because of the energy differences of the levels involved. Therefore, the Lyman series is in the ultraviolet and not in the visible or infrared.
*Monday, April 14, 2008 at 9:26pm by DrBob222*

**Calculus**

How can I prove this series alternating series converges(this is the answer)? (-1)^2*(2/3)^n I tried it this way: an = (2/3)^n, then i just broke it down. 2^n/(3^n) and i took the ratio of it and got 2/3 which does not equal to one which would mean the series diverges.. but ...
*Friday, July 26, 2013 at 11:23pm by Isaac*

**Calculus**

By recognizing each series below as a Taylor series evaluated at a particular value of x, find the sum of each convergent series. A) 1+5 + (5^2)/(2!)+(5^3)/(3!)+(5^4)/(4!)+...+ (5^k)/(k!)+...= B) 1-(2^2)/(2!)+(2^4)/(4!)-(2^6)/(6!)+...+((-1)^(k)2^(2k))/((2k)!) +...=
*Tuesday, June 18, 2013 at 10:24pm by Cole*

**math**

in a geometric series t1=23,t3=92 and the sum of all of the terms of the series is 62 813. how many terms are in the series?
*Sunday, January 12, 2014 at 7:30pm by cathy*

**math b50**

must answered in sequences/series formulas If the profit earned by a company is $100 in the first year, and doubles each year such that the profit earned in the second year is $200, $400 in the third year and so on. Find the total profit earned by the company in 15 years of ...
*Tuesday, June 15, 2010 at 10:09pm by sheri*

**Maths Please Help**

Let A=a1,a2,…,ak and B=b1,b2,…,bj be sequences of positive integers such that a1≥a2≥⋯ak≥1, b1≥b2≥⋯bj≥1, ∑i=1k ai≤6, and ∑j i=1 bi≤6. For how many ordered pairs of sequences (A,B) satisfying the above ...
*Wednesday, May 22, 2013 at 4:47am by Mathslover*

**College Calculus**

Suppose the series An (from n=1 to INF) is known to be convergent. Prove that series 1/(An) (from n=1 to INF) is a divergent series. I have no idea what to do... please help!
*Monday, March 24, 2008 at 8:05pm by Mandy*

**College Calculus (Binomial Series)**

Expand f(x) = (x+x^2)/((1-x)^3) as a power series and use it to find the sum of series (SUM from n=1 to infinity) (n^2)/(2^n) PLEASE HELP.
*Tuesday, April 8, 2008 at 9:13pm by Andrew*

**calculus**

With power series, is an endpoint convergent if you plug it back into the original series, and get an alternating series that is conditionally convergent?
*Wednesday, September 22, 2010 at 6:12pm by Bob*

**math**

in a geometric series t1=23,t3=92 and the sum of all of the terms of the series is 6813. How many terms are in the series
*Monday, June 3, 2013 at 7:54pm by bob*

**math**

in a geometric series t1=23,t3=92 and the sum of all of the terms of the series is 62813. How many terms are in the series
*Monday, June 3, 2013 at 9:18pm by jim*

**trig**

for the geometric series shown, state whether the series in convergent. If the series is convergent, give the sum 9 +6.3 + 4.41
*Monday, November 10, 2008 at 8:12pm by jerson*

**Calc II**

Use the comparison or limit comparison test to decide if the following series converge. Series from n=1 to infinity of (4-sin n) / ((n^2)+1) and the series from n=1 to infinity of (4-sin n) / ((2^n) +1). For each series which converges, give an approximation of its sum, ...
*Wednesday, November 7, 2012 at 3:24pm by Lauren*

**chemistry**

Hydrogen exhibits several series of line spectra in different spectral regions. For example the Lyman series (nf = 1 in Balmer-Rydberg equation) occurs in the ultraviolet region while the Balmer (nf = 2) series occurs in the visible range and the Paschen (nf = 3), Brackett (nf...
*Sunday, November 10, 2013 at 3:39pm by a.m*

**Data managment math**

5: In the best-of -five hockey series , the probability of winning the next game increases for each team by 0.1 if the previous game was won. If the teams ,the Ironmen and the Mustangs ,are in such a series and at the start of the series are evenly matched, what is the ...
*Monday, January 28, 2008 at 12:12pm by Samir*

**physics!! plz answer me!**

A 0.15 kg baseball moving at +26 m/s is slowed to a stop by a catcher who exerts a constant force of -390 N. How long does it take this force to stop the ball? How far does the ball travel before stopping? plz plz plz help!!
*Monday, December 10, 2007 at 9:48pm by julia*

**Biology**

(This question ties into the previous question I posted about mRNA). Use the Universal triplet code to determine the sequence of amino acids that would be generated for each of the mRNA sequences that you generated in question 2. Remember that the reading of mRNA goes in the 5...
*Saturday, March 22, 2014 at 9:17pm by Danielle*

**Chemistry**

Hydrogen exhibits several series of line spectra in different spectral regions. For example the Lyman series (nf = 1 in Balmer-Rydberg equation) occurs in the ultraviolet region while the Balmer (nf = 2) series occurs in the visible range and the Paschen (nf = 3), Brackett (...
*Sunday, November 10, 2013 at 4:46pm by Andy*

Pages: **1** | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Next>>