Saturday

February 28, 2015

February 28, 2015

Number of results: 4,743

**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?
*April 21, 2013 by Cristian*

**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...
*April 1, 2012 by Kim*

**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
*December 14, 2011 by Howler*

**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!
*June 4, 2008 by Millwright*

**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 ...
*May 22, 2013 by Mathslover*

**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 ...
*October 15, 2006 by Aisha*

**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?
*April 29, 2013 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?
*April 29, 2013 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?
*May 1, 2013 by Maths lover Please Help...*

**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?
*September 26, 2011 by Jon*

**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 ...
*January 8, 2013 by Crystal*

**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...
*March 22, 2014 by Danielle*

**Maths**

Eric thinks of 2 sequences.One is geometric and the other arithmetic.Both sequences start with the number 3.The common ratio of the geometric sequence is the same as the common difference of the arithmetic sequence.If the 6-th term of the geometric sequence is 96.Find the ...
*February 3, 2013 by Lucas*

**Sequences**

A = {a1, a1 + d1, a1 + 2d1,
}, B = {a2, a2 + d2, a2 +2d2,
}. Investigate whether A + B and A x B are arithmetic or geometric sequences. If an arithmetic sequence is identified, state its common difference. If a geometric sequence is identified, state its common ratio. (the ...
*September 30, 2007 by Nelson*

**Math**

A sociology seminar has 7 members (a) They begin each meeting with each member shaking hands with all the other members. No one shakes another member's hand twice. How many handshakes take place? (b)The professor shakes hands with each member of the seminar and in a different ...
*October 6, 2013 by Danielle*

**Probability**

Automated chemical synthesis of DNA has made it possible to custom-order moderate length DNA sequences from commercial suppliers. Assume that a single nucleotide weighs about 5.6 X 10^-22 grams and that there are four kinds of nucleotides. If you wish to order all possible DNA...
*January 16, 2012 by Erica*

**Math, Please Help!**

Ryan is building matchstick square sequences, as shown ( first one used 4, second one used 7, third one used 10, and the forth one used 13). He used 599 matchsticks to form the last two figures in his sequences. How many matchsticks did he use in each of the last two figures?
*November 6, 2014 by KG*

**Algebra HELP!**

Ryan is building matchstick square sequences, as shown ( first figure used 4, second figure used 7, third figure used 10, and the forth figure used 13). He used 599 matchsticks to form the last two figures in his sequences. How many matchsticks did he use in each of the last ...
*November 6, 2014 by A*

**Math**

A block is a consecutive sequence of the same digit that is not part of a longer such sequence. a.) Determine the number of sequences of 0's and 1's of length 10 in which every block of 1's has an even length. b.) Determine the number of sequences of 0's and 1's of length 10 ...
*February 17, 2007 by Kris*

**geometry again again again again**

If angle AFB= 8x-6 and angle BFC= 14x +8, find the value of x so that angle AFC is a right angle.
*September 27, 2009 by Monique N.*

**English**

Hello. Please help me with a few questions. 1) Which is the correct position of "again" in the sentence: "They have (again)gathered (again)at the square (again)"? 2)Does the phrase "the allegations doubt his integrity" have the same meaning as "the allegations question his ...
*May 15, 2011 by Ilma*

**Sequences...again**

Sequence T1 is obtained by adding the corresponding terms of S(sub) and S(sub2). so that T(sub1) = {2.6, 3.39, 4.297, 5.3561, . . .}. We shall write T(sub1) = S(sub1) + S(sub2) to convey the addition of S(sub1) and S(sub2) in this way. Is T(sub1) an arithmetic or geometric ...
*September 30, 2007 by Nelson*

**Biology**

Genome A 5-GCAGGCCATATAAAATAGCGCCATACTAGATACGGG CCATATTATTGCATATCCGCCGATTACAGGATTTAATTT GGGAATTCCCCGATTAACGCGATCGATCGGGCCATATC GATATGCATCGTAATCCGGTAGATTCACAGGTAG -3 Genome B 5-GCATACCCAAATTAATAACGGCGGTAGGCGACTCATT CTGATATACGCATCGGCATTTACCTACGGCCGGCCGGC ...
*November 30, 2014 by Jessica*

**Summer School Calculus**

Another one for you :P, add these two vectors using trigonometry (again)... 9N[S2W] and 11N[N31W]...Again, I am confused about the angles, I am not sure what value I should use for the cosine and sine law. THANKS AGAIN!!
*June 29, 2008 by Derek*

**math**

looking for the pattern in these sequences: -2,-1,4,1,4,9,14,27,_,_,_,_
*May 31, 2013 by ray*

**English**

1. Can we meet again one day? 2. Can we meet again oneday? 3. Can we meet again some day? 4. Can we meet again someday? (Which ones are grammatical? Which one is commonly used? Thank you. Have a good day!)
*December 14, 2011 by rfvv*

**DNA**

What nucleotide sequences do not code for proteins?
*September 29, 2010 by amelie*

**Math**

How to write a recursive rul for sequences. ex.) 1,3,4,7,11
*December 14, 2010 by Vic*

**math**

looking for the pattern in these sequences: -2,0,1,4,4,8,_ , _ , _, _, and so forth
*May 31, 2013 by ray*

**geometry again again again**

Two angles are supplementary. one angle measures 12 degrees more than the other. Find the measures of the angles.
*September 27, 2009 by Monique N.*

**math(sequences)**

0.5,1.5,4.5,13.5,... what is the next three terms??? plz help
*September 9, 2008 by n'kyla*

**math**

hi can you predict the next sequences possible from the numbers 1-50 05 16 20 30 41
*June 27, 2011 by nina*

**7th Grade Math**

What is arithmetic and geometric sequences?
*March 18, 2013 by Jessie*

**Number Sequences**

Explain It. What do you need to do to extend a pattern?
*February 10, 2014 by Mikey*

**geometry**

predict the next two numders in this sequences:-5,-2,4,13_,_
*October 22, 2008 by jazzy gurl*

**MATH**

How many six-letter sequences are possible that use the letters c, i, c, c, i, y?
*April 1, 2009 by Suzie*

**biology**

what are the sequences of event hat result in erythroblastosis fetalis
*January 3, 2011 by lewis*

**biology**

what are the sequences of event hat result in erythroblastosis fetalis
*January 3, 2011 by lewis*

**Math**

Find the sum of the first 12 terms of the sequences given in #1. a.f(n) = 5*(2)^(n-1) ; for n = 1,2,3,4,
b.a1 = 1/3 ; an+1 = = 3*an
*November 5, 2011 by Elisabeth*

**Biology**

why do we use protein sequences when comparing genetic similarities?
*November 11, 2013 by Anonymous*

**Biology**

How are antibodies used to detect similarities in protein sequences?
*November 11, 2013 by Anonymous*

**Math**

How do I solve this equivalent equation? 5x +2 < 17 (again the <is underlined) Do I subtract 2 from each side so it would read 5x < 15 (again the < is underlined) than divide each side by 5 so the x < 3 (again the <is underlined) is the answer? Also, how do I...
*April 9, 2008 by Tyler*

**math**

Brilli the ant placed the numbers 1,2,
,n in order clockwise around a circle. She can create an infinite sequence A={aj}∞j=0 of integers by letting a0=k∈{1,2,
,n} and constructing ai+1 from ai by taking the integer that is ai positions clockwise in the circle from ...
*July 16, 2013 by Ron*

**Math (help steve)**

Brilli the ant placed the numbers 1,2,
,n in order clockwise around a circle. She can create an infinite sequence A={aj}∞j=0 of integers by letting a0=k∈{1,2,
,n} and constructing ai+1 from ai by taking the integer that is ai positions clockwise in the circle from ...
*July 16, 2013 by Danny*

**math**

How many five-letter sequences are possible that use the letters a, p, j, e, x once each?
*April 1, 2009 by Jazzy*

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

Write down the first 5 terms of the n3 (Cubed) sequence
*December 14, 2011 by Howler*

**math**

Identify two different divergent sequences a and b who difference a - b converges.
*February 28, 2013 by Moyer*

**Biology**

Which of the following sequences is an example of a point mutation of the DNA sequence -A-A-G-T-G-C- ? (What?) -A-A-A-T-G-C- -A-A-G-U-G-C- -G-T-A-G-A-A-C- -A-A-G-G-T-C-
*December 31, 2014 by Anonymous*

**Functions 11: Series and Sequences**

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

**College Algebra **

Solve for the specified variable in each formula or literal equation Sn=n(a1+an/2) for n (sequences)
*January 27, 2013 by Kristen*

**math**

what method i need to use in solving arithmetic and geometric sequences and series?
*February 16, 2013 by luis*

**Math**

How many different sequences of ten flips of a coin have at least 8 heads?
*October 19, 2013 by Epic*

**maths**

for each of following sequences state whether it converges and if it does to what limit explain your answer to the below An =(6n-3n^3)/(2n^3+4n^2) (n=1,2,3,...)
*January 4, 2008 by cecile*

**math**

Find the first five terms of the sequences with the nth term given as follows: 4n + 7
*December 17, 2009 by Anonymous*

**biology**

What do multicellular genomes spend a larger proportion of their sequences on (in terms of enhanced complexity)?
*February 28, 2013 by biology help*

**Algebra, help please!!!**

Find the mean and the median in the following arithmetic sequences: A: 1, 3, 5, 7, 9 B: 1, 3, 5, 7, 9, . . . ., 199 C: 7, 10, 13, 16, . . ., 607
*November 19, 2014 by Ashley*

**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!!!
*January 10, 2007 by Cait*

**math i need help please**

determine sums of following geometric sequences... A. -1/32+1/16-...+256 B. 50 over Σ 8(.5)^n-2 where n=1
*January 20, 2011 by Please help me!*

**math**

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

**Statistics**

How many sequences contain exactly three heads when you flip a coin five times? 2 15 10 8 12 my answer was 15 ,but that was incorrect
*June 15, 2010 by Jacob*

**English**

They are arguing about rules and regulations again. I have to identify the adverb. again
*November 3, 2010 by Jake*

**calculus hs**

Here's the question again How do I find all line through (6, -1) for which the product of x- & y- intercepts is 3? Thanks again
*September 21, 2008 by kelly*

**math**

I need to figure out the next two numbers in the following sequences. A)144, 121, 100, 81, B)3, -12, 48, -192,
*February 10, 2009 by N/A*

**Statistics**

How many sequences contain exactly three heads when you flip a coin five times? my answer was 15 but apparently I am wrong 2 15 10 8 12
*June 14, 2010 by John*

**Math**

Can you help me find the next 2 terms in the sequences? 1, .025, .1 repeating, .0625,.04 2root2, 4, 4root3, 8root3, 8root15, 24root10
*September 6, 2011 by Janis*

**Calculus**

So, yet again, I am confused! State whether or not the following statements are true. Justify your reasoning. a). a ( b+c ) = a b + a c b.) a ื ( b+c ) = a ื b + a ื c c.) a ื ( bc ) = a ื b a ื c Thanks, again!
*July 2, 2008 by Derek*

**French for Anonymous to Sra**

its me again could u please tell me how to say by: to: due: I need it for my title page thanks again:)
*January 11, 2009 by Anonymous*

**science**

Me again :) Why might a car manufacturer change the shape of the side mirrors on a particular model? Thanks again.
*January 11, 2010 by 1234*

**GBE (Genetics)**

What are the advatages of Eukaryotic genes splitting up? I'm not so sure how to approach the question, is it something to do with exons & introns or the nucleotide sequences?
*October 7, 2008 by Claire*

**biology**

Explain how a scientist would use DNA or protien sequences taken from three different organisms to create a cladogram?
*December 17, 2014 by Lisa*

**biology**

Explain how a scientist would use DNA or protien sequences taken from three different organisms to create a cladogram
*December 17, 2014 by Lisa*

**vocab, again! sorry!**

Hi, again. I need help with this word decorum. the def is ADJ proper; seemly correct how do i use this in a sentence?
*October 6, 2008 by Kristin*

**Human biology please help**

Sequences of chemical reactions, called metabolic pathways, can be sped up, or catalyzed, by (A) __________ , which are made mostly of (B) ___________.
*March 11, 2014 by Ann *

**Sequences**

Find the fifth term of the sequence a sub1 = 12, a sub n+1 = a sub n / n+1? a)1/10 b)1/30 c)12/5 d)1/2 12,6,2,1/2, 1/2 divided by 5
*March 8, 2007 by raven 31791*

**math**

Terms of sequences 15,22,31,42,55 find next 3 terms and the formula also for the sequence
*November 10, 2010 by sara*

**geometric sequences**

I can not find the missing term 81 54 _ _ _ not seeing the missing terms.
*August 31, 2012 by karen*

**MATH-IN URGENT NEED OF HELP!**

About sequences.... (i) 32, 25,18,11,4 ____(Answer?) (ii)1,3,6,10,15 ____ (iii) 1,3,9,27,81 (iv)64,16,4,1,1/4(this is NOT a typo!)
*December 13, 2011 by Howler*

**Sequences**

An arithmetic sequence has first term of 6 and difference of 8; what is the tenth term? a10(subscript 10) = ?
*December 12, 2014 by Leon*

**Pre Algebra**

I don't understand by what they subtract... I'm learning Arithmetic Sequences and here's the sequence: -6, -4 2/3, -3 1/3, -2 By what do they add here?
*June 5, 2008 by Lily*

**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.
*January 3, 2013 by Shaira*

**arithmetic**

2. Find the general term and 25th term of the sequences c) 15, 13, 11, 9 ...
*December 7, 2010 by helen*

**Mathematics. Geometric sequences.**

2+4+8+...is a geometric sequence. Prove the sum of the first n terms is two less than the (n+1)the term.
*March 10, 2013 by Olivia*

**Cladograms**

How do scientists use protein sequences or DNA to construct cladograms? How do they find relationships between animals?
*December 13, 2013 by Anonymous*

**arithmetic**

put these sequences in standard form arithmetic a1=a6=11
*July 22, 2010 by jonay*

**Pre Calc**

For the sequence, write an explicit formula for the nth term. 1/5, 2/7, 3/9, 4/11... I dont know how to start. I have other sequences also, so I need to learn, not just get the answer. Thank You
*March 4, 2009 by mw*

**health**

In terms of decsion making sequences, how would you explain and describe : A. The 25-year-old, healthy worker who sees that sam physician for minor medial needs?
*April 5, 2010 by vince*

**english**

"The editors . . . break those sequences up into quick jagged shots that key us up and keep us hyper-alert . . . we look hard at the screen to take it in." universality?
*October 29, 2010 by danny*

**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?
*December 12, 2006 by mary11*

**math**

How many different sequences of 4 digits are possible if the first digit must be 3, 4, or 5 and if the sequence may not end in 000? Repetition of digits is allowed
*November 10, 2009 by jessica*

**math**

how many different sequences of 4 digits possible if the first digit must be 3,4 or 5 and if the sequence may not end in 000? repetition of digits is allowed.
*November 22, 2009 by Kay Kay*

**Geometry**

How many different sequences of 4 digits are possible if the first digit must be 3, 4, or 5 and if the sequence may not end in 000? Repetition of digits is allowed.
*November 22, 2009 by aleah*

**Spelling**

Substitute a word beginning with re- for each of the underlined phrases. 1) The patient was(admitted again) after.. 2)I would like you to(copy this assignment)in.... 3) When the CD player broke I asked for my money (back again)
*March 1, 2012 by flower*

**Health (again)**

Hi! It's me again! Here is the question: How many teenagers smoke in ontario? (as recent year as you can find) 20.7 teenagers Thank you Sam!! :)
*December 7, 2006 by Caley*

**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)
*May 31, 2010 by alicia*

**english**

"The editors . . . break those sequences up into quick jagged shots that key us up and keep us hyper-alert . . . we look hard at the screen to take it in." aesthetics? or is it authenticity?
*November 1, 2010 by danny*

**band**

please help me solve this riddle. "you've heard me before, yet you hear me again. Then I die, Til' you call me again." Who wrote this riddle?
*November 5, 2007 by kali*

**Math**

Solve the system by graphing by any method of your choice. 3x-y=1 or y=3x-1 3x-y=2 y=3x-2 (0,-1),(2, 5)and(0,-2),(-2,4) Solution is Consistent, lines intersect at (-1/4, -5/4). Above is my answer but I keep coming back to this again and again. Am I missing something? I solved ...
*May 20, 2007 by Amanda*

**algebra 2..again**

2y^3-10y^2+12y...need to factor again..i got to the second step... 2y(y^2-5y+6)...think thats right but i dont get how to factor that out..help plz..
*January 9, 2008 by gq*

**Algebra 2**

How do I write equations for geometric sequences? example question: 1, 3/2, 9/4, 27/8 an= a(n-1) * r^n where r is the value of dividing one term by the term before. For instance, in the above, ao= 1, r= a3/a2= (27/8)/(9/4)= 3/2 a1= 1*3/2 a3= 1*(3/2)^3= 27/8 Thank you, Mr. Pursley
*April 18, 2007 by NJ*

**Quadratic and exponential sequences**

I need to set up a chart to find the 6th and nth terms in this sequence - and soleve for the rule or process. here's the sequence: 1,3,9,27,81 Thanks!
*October 17, 2010 by Daniel*

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