Friday

March 6, 2015

March 6, 2015

Number of results: 32,783

**English**

1. All were happy. 2. All was clean. 3. All were clean. Q: In #1 all means all people, so #1 is grammatical. What about #2 and #3? In #2 and #3, all means all things. In this case, do we have to use 'was' or 'were'?
*August 29, 2011 by rfvv*

**Integrated Math 1**

Which of the following may constitute a population? (choose all that are correct.) A. all rats in New York. B. all nurses in a hospital. C. all skyscrapers in Chicago. D. all brown-haired people in Oslo.
*July 23, 2012 by Tifini*

**FRENCH**

Could you please tell me how to say "all in all" in French. It snowed a bit more during the night but all in all it's not very much. Il a neigé un peu plus pendant la nuit mais "all in all" il n'est pas beaucoup. Thank you so much!
*December 14, 2008 by E.G.*

**Science**

What does a penguin,whale,and a seal have in common? A.They all breath underwater B.They all eat while on land C.They are all protected from the cold by thick layer of fat D.They are all mammals C?
*April 17, 2012 by Aizon*

**Science**

8. Which of the following is true about all electromagnetic waves in a vacuum? (1 point) A.They all carry the same energy. B.They all travel at the same speed. C.They all have the same frequency. D.The all have the same wavelength.***
*January 21, 2015 by jeje*

**English**

1. Each of us has something to do. 2. We each have something to do. (Are both grammatical? in #1 we us 'has,' and 'in #2 we use 'have.') 3. All the books were expensive. 4. All the people were surprised. 5. All are old things. 6. All is old things. 7. All is over. 8. All is ...
*April 10, 2014 by rfvv*

**Early childhood literacy**

Most preschoolers can produce: a. all the vowel sounds b. all the sounds in their native language c. all consonants d. accurate productions of all sounds
*July 5, 2011 by Frankie*

**Per-calc Helppppp**

keep in mind answers should be pi radians or if necessary 3 dec. csc^2-2=0 all angles 4cos^2x-4cosx+1=0 all angles and name 8 angles 7sin^2x-22sinx+3=0 all angles and name 8 angles 2cos^2x-7cosx=-3 all angles sinx(2sinx+1)=0 all angles
*April 19, 2012 by Amanda*

**english**

kindly please correct my english grammar if it is correct or mistake. how to use the word all. 1.all girls are beautiful. 2.all of them is really has a kind heart. 3.all peaple is good.
*December 20, 2011 by jessie*

**Language Arts**

Read the following three words: sauntered, walked, danced What is the BEST way to group these words on a classification chart to help you understand their meanings? (1 point) They all end in –ed. They are all in the past tense. They are all verbs. They are all ways in which ...
*October 2, 2012 by Love2Learn*

**English**

1. I am all ears. (What is the part of speech of 'all'? Is 'all' an adjective or an adverb? What is the meaning of 'all' here?) 2. They are all happy. (What is the part of speech of 'all'? Is 'all' an adjective or an adverb? What is the meaning of 'all' here?)
*April 15, 2010 by rfvv*

**English**

1. My new friends are all great. 2. All my new friends are great. 2-2. All of my new friends are great. 3. My new friends all are great. 4. They all are great. 5. All of them are great. (Are they all grammatical? What is the part of speech of 'all' in Sentence? In the ...
*March 10, 2009 by John*

**HEALTH **

Nearly ________ movement in the body is the result of muscle contraction. A. All B. 50% of all C. 10% of all D. None of the above b?
*August 22, 2012 by Aya *

**health**

Nearly ________ movement in the body is the result of muscle contraction. A. All B. 50% of all C. 10% of all D. None of the above D?
*August 26, 2012 by Aya *

**health**

Nearly ________ movement in the body is the result of muscle contraction. A. All B. 50% of all C. 10% of all D. None of the above
*July 1, 2013 by annias*

**Read**

Do you think all people in real life are all good or all bad? Why?
*April 4, 2010 by Ashley*

**math**

Which of the following statements is true? A. all trapezoids are similar B.all isosceles triangles are the same C.all rectangles are similar D.all equilateral triangles are similar
*December 6, 2012 by alfonso*

**Ged Test Results**

I want to tell everyone thanks for all your help, I pass my Ged Test and I feel great, thank for all your prayers and motivation. I am so excited. I thank God for you all. I thank God for the faith that he has put in me. Than you all..
*July 29, 2008 by Keysha*

**biology**

4pts((all(or(none): Q1:(Draw(a(gene(with(three(exons(on(the(line(below. The(coding(region((ORF) is(completely(contained(in(the(second(exon. Make(sure(you(annotate(the(following(regions: TSS 5’UTR(all(regions) Coding(sequence 3’UTR(all(regions) AATAAA(sequence 5’(Donor(site((...
*September 24, 2013 by aisha*

**science**

Which of the following statements is true about fungi? (1 point) A. All fungi are pathogens. B. All fungi are microscopic C. All fungi are living organisms D. All fungi have negative impacts on living things. Plz no rude coments. :-) thank you!
*November 13, 2014 by Just a friend ;-)*

**English**

1. All of them are useful. 2. All of them is useful. 3. All is expensive. 4. All are expensive. 5. All is silent in the room. 6. All are silent in the room. --------------------------- Which ones are grammatical?
*March 24, 2014 by rfvv*

**chemistry**

For all three of the cubic lattices (unit cells), all of the ? and all of the ? are the same size. A wild guess. edges. radii?? Check it out thoroughly. Perhaps you have a list of words from which to choose.
*February 1, 2007 by dory*

**English Expression**

Q1) I'm sorry. That's all right. Think nothing of it. It's nothing. Not at all. Think nothing of it. Q2) Thank you. You're welcome. Don't mention it. Not at all. It's my pleasure. It's nothing. Are the answers to the two questions all correct? Would you add some more suitable ...
*May 10, 2008 by John*

**All**

I just wanted to give thanks to all of the people on this website for all of the hard work and time you have given to me and to others. I still have much work to do so I just hope you will continue to be there for me as well as others.Thank you and God bless all of you!
*September 11, 2009 by p*

**statistics**

Three cards are drawn from a deck without replacement. Find these probabilities. a)all are jacks b)all are clubs c)all are red cards
*July 30, 2010 by kathy*

**Thanking MS Sue**

Thank you Ms Sue for all you do here. We appreciate it. You have helped students all your life, and I am certain many of them haven't forgotten you. Thank you from all of us. BobPursley
*September 11, 2011 by bobpursley*

**Math**

1. Solve for x: 4x/9 = 2(x+4)/3 2. Factor completely : x to the fourth power -16... 3. If a = all #s between -5 and 5, B= all primes and c= whole numbers how many numbers does the intersection of A,B, and C all contain? i think its 2...
*May 1, 2008 by Anonymous*

**English**

All the best, Bill ------------------------------ We can see 'All the vest' at the end of a letter. What is the meaning of it? Which one is similar to 'All the best'?
*March 17, 2014 by rfvv*

**biology**

In a cross with a mother who carries the allele for hemophilia and a father who has normal blood clotting what would be the expected phenotypes of the offspring? A. all females normal, all males normal B. all females normal, all males with hemophilia C. all females carriers of...
*December 2, 2013 by orpheus*

**re-Writeacher,Bobpursley+SraJMcgin**

Thankyou so much to all of you for helping me all of your ideas and sites you found have helped me alot. thankyou again. you are all stars!
*June 4, 2009 by leigh*

**Mrs. SUe**

Curiousity; Do you get paid for all for all of this hard work that you do??? BEcuase you are always on helping all students on a ton of subjects.. I really appreciate what you do and you deserve to get paid for all the students you are really helping, without giving them the ...
*May 28, 2009 by Sarah*

**Math**

A function whose domain is all reals, and which maps all rational numbers to 1 and all irrational numbers to 0.
*September 20, 2012 by kenny*

**Poem/ Ms Sue**

Thank you for all this I will change it all and improve it. But I think I'm just going to stick with the ending part unless you got anything for me. But still anyway thank you for all your help on this poem.
*April 22, 2009 by john*

**to writeacher**

im confuse on when it says : for all tables from two to twelve. does it mean all the tables like: 1 *1, 1 *2, all the way to 12 or does it mean: 2 * 1, all the way to 12?
*July 24, 2012 by Celest*

**Science**

What is an example of population. A. all the animals in a forest B. All the trees in a forest C. All the maple trees in a forest D. all the weeds in a forest Please help!!!
*January 2, 2015 by Sarah*

**History**

Dr. King told the parents,''Don't worry about your children. They are going to be all right. Don't hold them back if they want to go to jail for they are doing a job for all of America and for all mankind.'' What job were they doing? Please HELP me THANK YOU
*October 13, 2010 by Melea*

**To all teachers**

Merry Christmas/Happy Holidays and lots of health, happiness and prosperity for 2011 to all the wonderful teachers at Jiskha. Thank you for sacrificing your spare time to help all of us out.
*December 19, 2010 by E.G.*

**Math, Please Help**

1) Given the arithmetic sequence an = 4 - 3(n - 1), what is the domain for n? All integers where n ≥ 1 All integers where n > 1 All integers where n ≤ 4 All integers where n ≥ 4 2) What is the 6th term of the geometric sequence where a1 = 1,024 and a4 = -...
*May 14, 2014 by AMK*

**Guru Blue**

Finished all the conditionals and got all the reported speech done and all my word stress done. Thanks in no small way to your extremely helpful links. I'm burned out now and going to get some sleep. It's 3.30 am here. Thank you so much.
*March 20, 2009 by Island boy*

**algebra**

List all possible rational zeros for the polynomial below. Find all real zeros and factor completely. Please show all your work. f(x) = 2x^4 + 19x^3 + 37x^2 - 55x - 75
*December 20, 2011 by edward*

**final exam**

a study shown that 20% of all college textbooks cost at least $70.it is known that the standard deviation of the prices of all college textbook is $9.50.assuming that prices of all college textbooks follow a normal distribution, find the mean price of all college textbooks.
*May 21, 2013 by Anonymous*

**Math(grade8)**

Find all primes less than 100 that can each be written in all three ways: p=a^2+b^2=c^2+2 e^2=f^2+3 g^2, and show how it's done with each one. The numbers you're squaring must be integers; show your thinking. thanksi dont get it at all
*September 24, 2009 by Mia*

**Math**

1) Given the arithmetic sequence an = 4 - 3(n - 1), what is the domain for n? All integers where n ≥ 1 All integers where n > 1 All integers where n ≤ 4 All integers where n ≥ 4 2) What is the 6th term of the geometric sequence where a1 = 1,024 and a4 = -...
*May 14, 2014 by AMK*

**Algebra**

1) Given the arithmetic sequence an = 4 - 3(n - 1), what is the domain for n? All integers where n ≥ 1 All integers where n > 1 All integers where n ≤ 4 All integers where n ≥ 4 2) What is the 6th term of the geometric sequence where a1 = 1,024 and a4 = -...
*May 14, 2014 by Anonymous*

**math**

a bag contain balls, all but 4 r red, all bt 4 r green, all bt 4 r blue..then hw many balls r there
*July 26, 2011 by 8k*

**chemistry**

1.)Calculate the number of moles in 3.50 x 10^21 atoms of silver. Show all work. 2.) Calculate the number of atoms in 2.58 mol antimony. Show all work 3.) Determine the mass of 1.45 mol FePO4. Show all work. 4.) Calculate the number of mol in 6.75 g of NaCl. Show all work. 5...
*February 9, 2014 by Raina*

**chemistry**

Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. Water has the highest boiling point. B. Two lone pairs of electrons are assigned to the oxygen in each Lewis structure of all three molecules. C. Dispersion forces affect all three ...
*February 4, 2008 by jose*

**chemistry**

Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. H-O-H and C-O-H bond angles are all equal to 109.5. B. Dispersion forces affect all three molecules. C. Two lone pairs of electrons are assigned to the oxygen in each Lewis ...
*February 9, 2008 by Anonymous*

**chemistry**

Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. Two lone pairs of electrons are assigned to the oxygen in each Lewis structure of all three molecules. B. Dispersion forces affect all three molecules. C. H-O-H and C-O-H bond ...
*February 10, 2008 by Anonymous*

**Chemistry**

Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. Two lone pairs of electrons are assigned to the oxygen in each Lewis structure of all three molecules. B. H-O-H and C-O-H bond angles are all equal to 1095. C. Dispersion forces ...
*May 3, 2008 by Tom*

**chemistry**

Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. H-O-H and C-O-H bond angles are all equal to 1095. B. Two lone pairs of electrons are assigned to the oxygen in each Lewis structure of all three molecules. C. Dispersion forces ...
*February 3, 2009 by Kyle*

**Geometry **

Which statement is true? A. All squares are rectangles. B. All quadrilaterals are rectangles. C. All parallelograms are rectangles. D. All rectangles are squares. I thought it was B.
*August 11, 2014 by Vanessa*

**Economics**

Do all firms in all market structures have anything in common? I think not. They all consist of buyers and sellers. In Principals of Microeconomics courses, economists make several general economic assumptions (perhaps incorrectly I might add) about firms and the behavior of ...
*December 10, 2006 by Mariah*

**geometry**

what is the shortest length of string that can be cut into all 5cm lengths, all 8cm lengths or all 10cm lengths?
*February 9, 2011 by Anonymous*

**For All Your Help!**

I just wanted to say thanks for all of the help that you guys gave me. Especially Ms.Sue!! she's been a GREAT help with me and probably to all of you guys as well, so thank you guys!. :)
*January 9, 2015 by Channy-Boo*

**US Government**

The Senate is refered to as a continuos body, because not all Senators are up for re-election all at the same time. Instead, 1/3 of all Senators are up for re-election every 2 years. Meaning that about 33 seats are up for election in 2004, 33 different seats in 2006, and the ...
*July 12, 2014 by Casey*

**early childhood**

" I eated it all up" said jimmy Mrs newman, his teacher, should say 1. jimmy , say that again, but instead of saying' eated it all up" say I ate it all up" 2. "you eated it all up? then what happened?" 3. what did you eat up 4 that isn't the right way to say that try again 1 ...
*June 5, 2012 by reema*

**vegetable names....**

what vegetable name includes all letters (and i mean ALL of them) except the letter 'y'? this means all 25 other of them. zsdg give me names of vegetables from a-z
*January 17, 2007 by mb*

**Probability**

Five cards are drawn from an ordinary deck without replacement. Find the probability of getting a. All red cards b. All diamonds c. All aces
*April 29, 2011 by Michelle*

**Algebra 2 Could use help asap **

I really am trying to work these problems out on my own. Please help If f(x)=3x^2 g(x)= 1/6+x find the following and give the domain (f+g) (x) (3x^2) + (1/6+x) x is all real numbers and x is not equal to 6 (f-g) (x) (3x^2) - (1/6+x) 3x^2-x-6 x is all real numbers and x is not ...
*February 1, 2011 by Sam*

**5th Grade Science**

What do all desert plants have in common? A. all have prickles or thorns B. all can survive without water C. all can live without much rain D. all are poisonous to desert animals i think it is B hmmmmm? no water at all? hey k. i picked b cause all plant in the desert can ...
*April 18, 2007 by Missy*

**calculus confused**

let f and g be differentiable functinos witht the following properties: g(x)>o for all x f(0)=1 if h(x)=f(x)g(x) and h'(x)=f(x)g'(x), then f(x) multiple choice: a) f'(x) b)g(x) c) e^x d)0 e)1 it can't be a or b. it also can't be c right? because if f(x) is e^x, then h'(x) ...
*November 30, 2006 by Anonymous*

**Calculus**

Let g and h be any two twice-differentiable functions that are defined for all real numbers and that satisfy the following properties for all x: I) (g(x))^2 + (h(x))^2=1 ii) g'(x)= (h(x))^2 iii) h(x)>0 iv) g(0)=0 a)Justify that h'(x)=-g(x)h(x) for all x b) Justify that ha ...
*January 30, 2014 by Rachel*

**physics**

What is the purpose of a layer or copper or aluminum on the bottom of stainless steel cookware? All objects continuously emit radiant energy. Why then doesn't the temperature of all objects continuously decrease? All objects continuously absorb energy from their surroundings. ...
*January 30, 2008 by Emily*

**Math-geometry**

A regular polygon with all sides that are congruent and all angles that are congruent. Thus, the regular triangles are equilateral triangles, and the regular quadrilaterals are squares. All equilateral triangles are similar to one another and all squares are similar to one ...
*February 25, 2013 by Urgent!!*

**Math-geometry**

A regular polygon with all sides that are congruent and all angles that are congruent. Thus, the regular triangles are equilateral triangles, and the regular quadrilaterals are squares. All equilateral triangles are similar to one another and all squares are similar to one ...
*February 26, 2013 by Urgent!!*

**Math-geometry**

A regular polygon with all sides that are congruent and all angles that are congruent. Thus, the regular triangles are equilateral triangles, and the regular quadrilaterals are squares. All equilateral triangles are similar to one another and all squares are similar to one ...
*February 26, 2013 by PLEASE HELP*

**science **

solar,wind,nuclear,and hydroelectric energy sources are similar in which of the following ways? A. they are all nonrenewable energy sources B. they all require an indirect use of sunlight in order to make electricity C. they are all considered alternative energy sources D. ...
*April 29, 2014 by help plzz *

**Science Help!!!!**

Solar,wind,nuclear,and hydorelectric energy sources are similar in which of the following ways? A. They are all nonrenewable energy sources. B. They all require an indirect use of sunlight in order to make electricity. C. They are all considered alternative energy sources. D. ...
*December 14, 2014 by callie*

**Math 115 #20**

Label each statement as true or false a. All integers are real numbers. b. All negative integers are whole numbers. c. Zero is neither positive nor negative. d. All integers are whole numbers. I think all answera are TRUE am I correct
*January 9, 2009 by Deb*

**Algebra**

Observe the following sets and answer he quesions given below. A = The set of all residens in Mumbai. B = he set of all residens in Bhopal. C = he sets of all residents in Maharashtra. D = The sets of all residents in India. E = The sets of all residents in Madhya-Pradesh. (i)...
*June 17, 2010 by Ratan*

**Happy Holidays**

Merry Christmas/Happy Holidays and all the very best for 2010 to all the wonderful teachers. Thank you for all your help!!!
*December 24, 2009 by E.G.*

**English**

Which is the best paraphrase of this excerpt from "On First Looking into Chapman's Homer"? . . . all his men / Looked at each other with a wild surmise—/ Silent . . . (1 point) * All his men looked at one another in silent surprise. * All his men looked at one another, ...
*April 7, 2010 by Skye*

**HUM 130**

Christians, I am referring to denominations, not individual people. 1. Do all Christians believe in baptism? Explain. 2. Do all Christians honor their spiritual heroes as saints (formally)? Explain. 3. How many religions believe in or have a pope? Explain. 4. Do all Christian...
*December 18, 2007 by dawn*

**chemistry**

Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. Water has the highest boiling point. B. H-O-H and C-O-H bond angles are all equal to 1095. C. Dispersion forces affect all three molecules. D. Two lone pairs of electrons are ...
*January 26, 2007 by helppleez*

**Math - Fractions**

Mary has invited all her friends and all the students in her class to her birthday party. She invited 27 girls and 15 boys in all. What fraction of the people she invited are girls?
*September 10, 2013 by Venus*

**us history**

Harriet Tubman is characterized as; An Abolitionist Women's Right Leader An Active member of the Underground Railroad All of the Above is it All Examples of "Radical Antislavery" were; William Llyod Garrison John Brown Quakers William Still All of the Above Is this All also. I...
*November 16, 2013 by ps*

**Thank you all**

I walked through the door of opportunity. Yes i took my Ged Test and I feel good about the fact of passing. Thank you all for being there for me. Now I can walk through any door that is place before me. Thank you all again. I can do anything I choose to do, nothing stopping me...
*July 16, 2008 by keysha*

**Physics**

Which of the following statements about emission spectra is correct? All the lines are evenly spaced. All noble gases have the same spectra. Each line corresponds to a series of wavelengths. All the lines result from discrete energy differences
*February 11, 2013 by physics student*

**chemistry**

Mass is lost or gains in a.) all chemical reactions b.) all nuclear fission reactions c.) all nuclear fusion reactions d.) all chemical and nuclear reactions my guess is B
*May 20, 2012 by ben*

**Geometry**

I need help with this. Use the Law Of Syllogism to determine a conclusion from statements 1 & 2. 1. All squares are rhombuses 2. The diagonals of a rhombus are perpendicular. What can we say about the diagonals of all squares then? the diagonals of all squares are ...
*September 12, 2006 by Azlin*

**english**

please help me with the question:find a mistake in the following sentence: The labor unions met with the management board all the night in order to avoid a strike. I know the mistake is " all the night". it should be all night. ButI don't know the reason. Thanks
*April 20, 2010 by hong*

**Algebra**

57. Find the domain of: y= 5 _____ 2x+24 a. all real numbers except 12 b. all real numbers except 0.08 c. all real numbers except -0.08 d. all real numbers except -12 I still don't get how to do these, and this one looks even more complicated than the others.
*May 7, 2010 by y912f*

**English 2**

Shakespeare uses Calphurnia to build suspense about what will happen in all of the following ways except a.urging Caesar not to go to the Senate. b.recounting all the disturbing omens. c.suggesting that Caesar pretend he is ill. d.relating that she dreamt Caesar was ...
*May 2, 2012 by Lauren *

**Early childhood literacy**

"I eated it all up!"said Jimmy. Mrs. Newman, his teacher, should say. A. "Jimmy,say that again, but instead of saying "I eated it all up!"I ate it all up!' B. "What did you eat up?"
*October 23, 2011 by Daisy*

**English**

All of the water is polluted. Each of the wather is polluted. Some of the milk is bad. Some of the apples are rotten. All of the milk is decayed. (Are all the expressions grammatical? - The subject verb agreement-)
*December 29, 2008 by John*

**Math Problem2**

List all possible rational zeros for the polynomial below. Find all real zeros of the polynomial below and factor completely. Please show all of your work. f(x) = 5x^4 – x^3 - 33x^2 – 43x – 16
*June 9, 2011 by Greg - PV*

**Calculus**

f(x)=xe^(-2x) with domain 0< or equal to x< or equal to 10 find all values of x for which the graph of f is increasing and all values of x for which the graph is decreasing give the x and y coordinates if all absolute max and min points
*November 30, 2010 by John*

**mathematics**

1. If $ is defined for all positive numbers x and y by x$y = 3x + 8y - y^3, then 10$2 = A. 38 B. 102 C. 14 D. 20 2. If & is defined for all positive numbers w and z by w & z = 15wz - 10w + 2 then 3 & 4 = A. 67 B. 77 C. 142 D. 152 3. All of the following are in the domain of f(...
*December 30, 2012 by joshua*

**english**

difference betwween following words. i have these words for spelling and iont know the difference. can you help me. annyway any way,all right alright,every one everyone, already all ready, there's their's, anyone any one, altogether all together
*January 26, 2010 by jade*

**critical thinking**

2. If the library has The Lord of the Rings, you won’t find it on the first floor. This is because all fantasy novels are fiction and all works of fiction are housed on the second floor of the library. Of course, I am assuming that all the books are properly shelved at this ...
*September 26, 2012 by frog*

**Calculus**

Show that the curve y=6x^3+5x-3 has no tangent line with slope 4. The answer key says that m=y'=18x^2+5, but x^2 is greater than or equal to 0 for all x, so m is greater than or equal to 5 for all x. I don't understand that x^2 is greater than or equal to zero. Where did that ...
*November 4, 2014 by Anonymous*

**Math (Calc.)**

1.Use the IVT to explain why the following is true. If f continuous on (a,b) and f(x) does not equal to zero for all x in the interval (a,b), then f(x) > for all x in the interval (a,b) or f(x) < 0 for all x in the interval (a,b). 2. You are given that a function f is ...
*September 17, 2013 by Dalia*

**Social Studies**

I have a midterm tomorrow and this is the essay question: “When men’s minds seem narrow to you, tell yourself that the land of God is broad; broad His hands and broad His heart. Never hesitate to go far away, beyond all seas, all frontiers, all countries, all beliefs”. Analyse...
*October 23, 2011 by Katie*

**Calculus--Reiny**

V = Radical The expression: V2(V5-12V3)-V3(V8-2V30) can be written in simplest form aVb-cVd, where a, b, c ,d are all positive integers. The value of a + b + c + d is ________. So after solving all this out, I arrived at 7V10 - 14V6. That - is beside the 14, and Im only ...
*October 4, 2011 by -Untamed-*

**math**

7. Classify each of the following as true or false. If false, tell why or give an example showing that it is not true. (a) For all sets A and B, A – B = B – A (b) For all sets A, A (c) For all sets A, A A (d) The set {r, s, t...
*November 30, 2009 by poo*

**math**

A number of girls form a singing group. All but 3 of the girls are blondes, all but 4 are brunettes, and all but 5 are redheads. How many girls are in the group?
*January 11, 2011 by Starla*

**math**

Which of the following subsets of the vector space Mnn are subspaces? (a) The set of all n × n symmetric matrices (b) The set of all n × n diagonal matrices (c) The set of all n × n nonsingular matrices
*February 25, 2015 by kirsten*

**Probllem solving and critical thinking**

what is the premise of this argument:2. If the library has The Lord of the Rings, you won’t find it on the first floor. This is because all fantasy novels are fiction and all works of fiction are housed on the second floor of the library. Of course, I am assuming that all the ...
*July 9, 2013 by Anonymous*

**college Algebra/Linear Algebra**

Find a Basis for each of these substances of R^4 (a) All vectors whose components are equal (b) All vectors whose component add to zero (c) All vectors that are perpendicular to (1,1,0,0) and (1,0,11) (d) The column space (In R^2) and nullspace(In R^5) of U=[1 0 1 0 1] [0 1 0 ...
*November 3, 2010 by traxx*

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