Questions Asked on
August 8, 2007

math
I need to solve as an equation. A coffee merchant has coffee beans that sell for $9 per pound and $12 per pound. The two types are to be mixed to create 100 lb of a mixture that will sell for $11.25 per pound. How much of each type of been should be used
asked by Lynn 
gaussian elimination
4. Solve the following linear system using Gaussian elimination. Show work. 3x + y – z = 5 4x + y = 6 6x – 2y + 3z = 2 how about looking at http://www.mathwords.com/g/gaussian_elimination.htm
asked by linda 
cramers rule
Solve the following linear system for x using Cramer’s rule. Show work. x + 2y – 3z = 22 2x – 6y + 8z = 74 x – 2y + 4z = 29 Cramer’s rule uses determinants to find the solution Set up a 3by3 matrix using the coefficients of the x,y and z, and
asked by linda 
Science
A drop of ink is in a tube.A stopper is used.What will happen to the drop of ink in the tube when you place your hands around the flask for 5 minutes? Is water in the tube? And what's the stopper used for? If so, heat is transferred from the hand to the
asked by Joey 
math
Multiply. Use the lattice method. 277*32= I hope your teacher does not teach this method as a viable method for multiplication. A week ago Yahoo presented this method as a novelty and as a "math trick". This website explains and shows diagrams for
asked by Haytheline Thomas 
check math
Here are my answers. Can you check if I got the right answers? Thank you! (x4)/(x^23x4) = x+1 (x^38)/(x2)=x^2+2x+4 (5x)/(x^225)=x5 (x^24x32)/(x^216)=(x8)/(x4) first one should be 1/(x+1) second is good third: 1/(x+5) 4th is ok Have you not
asked by Anonymous 
check math
Here are my answers. Can you check if I got the right answers? Thank you! Solve for z: 4x+10yx=0 z=2x/5y y^2+3yz8z4x=0 z=(y^2+4x)/(3y8) there was no z in your first equation, from you answer I can tell it should have been 4x + 10yz = 0 If so, the
asked by Anonymous 
Algebra II
Write y=x^2+4x1 in vertex form. y=x^2+4x1 y=(x^2+4x+8)18 y=(x+2)^29 This isnt one of my answer choices,what am I doing wrong? in second line: y=(x^2+4x +4 )1 +4 (take one half of the middle coefficient, then square it) y=(x^2+4x + 4 )1  4
asked by Jonathan 
check math
Here are my answers. Can you check if I got the right answers? Thank you! (x+3)(x3)>0 answer: x3 x^22x15
asked by Anonymous 
Algebra
The teacher wants us to do the following problem by using substitution. I don't think I am doing it right. 4x  12y =5 x + 3y = 1 Those two equations are for parallel lines that never intersect. There is no solution. If you substitute 3y +1 for x in the
asked by Dori 
math
Not sure about this... Need to solve by substitution 8x  4y = 16 y = 2x 4 Substitute 2x 4 for y in the first equation and solve the resulting equation for x. 8x  4(2x4) = 16 16 = 16 The two equations are not independent. One can be derived fron the
asked by Janna 
Chemistry
Which forms the more alkaline solution and why? Al2O3; B2O3; CO2 or SiO2 Al2O3 and SiO2 are not watersoluble. CO2 forms the weak acid H2CO3, in water. What does that leave you with?
asked by Vic 
FIN
Brady Corporation is a leader in identification, safety, and material solutions. In 1998, the firm was hit hard by faltering foreign markets, so it embarked upon an aggressive campaign to redesign its cost structure. The firm believes this will help it to
asked by HELP PLEASE!!!!!!!!!!!!!!!!!! 
Economics 205
Hello, I need to choose an industry to study for my economics class. I'll have to write about wheter the industry is elastic or inelastic. Any suggestions? Do you consider politics as an industry? Or education? THose would both be good ones to check out.
asked by Keisha 
chem
What is the importance of an Hbond in water? It raises the boiling point of water; otherwise, following the sequence of H2Te, H2Se, H2S and H2O, the H2O would be a gas.
asked by Big d 
check math
Here are my answers. Can you check if I got the right answers? Thank you! solve for x, where x is a real number. x^2+3x4=14 x=6,3 (x^41)/(x^3)=0 x=1 (x5)^2=9 x=2,8 2x^2+5x=8 x= [5+/sqrt(89)]/4 for first one x=6 or x=3, factors are (x+6)(x3)
asked by Anonymous 
construct a triangle
How can I construct a triangle ABC with vertices A(4,2), B(4,3), C(1,3). what are the angles in order from least measure to greatest measure Since you will have to use trigonometry to find the angles, surely you must know how to plot points. take the
asked by Sam 
math
Solve systems by substitution 5x  2y = 5 y  5x = 3 Substitute 5x + 3 for y in the first equation, and solve it for x. Once you have x, use either of the two equations you wrote to solve for y.
asked by Robin 
WRITING
How Do you vaule reading in you life? I suppose to get someone else opinion. What is the view on whether writing skills are influenced by reading habits? I love to read. Of course, I get to pick and choose what I read, and mostly I read the news, blogs,
asked by LATUNJA JONES 
Biology
What are the levels of organization in a living system? LEVEL 1  Cells Are the basic unit of structure and function in living things. May serve a specific function within the organism Examples blood cells, nerve cells, bone cells, etc. LEVEL 2  Tissues
asked by jayjay 
English
In Of Mice and Men, Curly is said to have one been welterweight boxer/ a semiprofessional boxer. I reread the book, but I can't find that info. anywhere. Can you please point it out to me? Here are several sites that refer to this:
asked by Anonymous 
English
When I am handwriting the names of books and plays, do I underline them or put them in quotes? These are the works that I am writing: Tortilla Flat, The Grapes of Wrath, The Pearl. In handwriting, book titles will need to be underlined. Since all of these
asked by Anonymous 
math
how do you convert the fraction 2/3 to a decimal Multiply numerator and denominator by 3: 2/3 = 6/9 1/9 = 1/(101) = 1/10 * 1/(11/10) = 1/10 [1 + 1/10 + 1/100 + 1/1000 + ...]= 0.1111111111111 Therefore 6/9 = 0.6666666666666666.... Another way to convert
asked by joy 
English
Their Eyes Were Wtaching God By:Nora Zeal Hurston. "to be a pear tree  any tree in bloom!" (11). The image suggests a wholeness  as bees pollinate blossoms paralleling human sexual intercourse. What does that mean? What is another way to say that? Bees
asked by Margie :D 
Weird question
Why is the line of the inequality solid when = and dotted when < or >? It is a representation. If (ie, dotted means values on either side of the dotted line are allowed.)
asked by Shawn 
Algebra II
Solve x^2+2x=2 by graphing and indicate the roots.Please and thank you We can't draw graphs for you here. The roots are x = 2.73 and 0.73 I suggest you make your own graph of y = x^2 + 2x and see where it crosses the horizontal line y = 2. Choose x
asked by Jonathan 
Fin
Brady Corporation is a leader in identification, safety, and material solutions. In 1998, the firm was hit hard by faltering foreign markets, so it embarked upon an aggressive campaign to redesign its cost structure. The firm believes this will help it to
asked by HELP PLEASE!!!!!!!!!!!!!!!!!! 
Managerial Economics
The MorTex Company assembles garments entirely by hand even though a textile machine exists which can assemble garments faster than a human can. Workers cost $50 per day, and each additional laborer can produce 200 more units per day (the same for each
asked by Christina 
Accounting
I need to do a report and compare ratios for a target company against industry averages. I have calculated the averages for my company, but where do I get information on industry averages? For example, what is the industry average receivable turnover ratio
asked by AccountingStudent 
Business presentation
Imagine you have been asked to make FOUR presentations on "Effective Presentation Skills" for FOUR very different audiences. What would be your presentation objective for each group? Write a 1sentence objective statement (also known as "purpose
asked by Bridgett 
English
In A Raisin in the Sun, is the main conflict poverty? http://www.sparknotes.com/lit/raisin/summary.html Look for the word "clash" or "disagree" or something like that. =)
asked by Anonymous 
English
Could someone please check my answers? 1. Who is right about Willy Harris? Mama 2. Does Beneatha like her nickname Alaiyo? yes 3. Does it fit her? yes But why does it fit her? What does Alaiyo mean? It is said in the play... When you read that, you will
asked by Anonymous 
legal and ethical issues
Which element do you think plays the greatest role in influencing employee behavior? Explicit policy or implicit policy. First find out what explicit and implicit mean. Then think about a couple of job situations. Pretend you are the employer, then the
asked by Anonymous 
check math
Here are my answers. Can you check if I got the right answers? Thank you! 1/(x+h)  1/x= h/(x^2+xh) (2/x^2)/(10/x^5)= (x^3)/5 [1/(3+x)  1/3]/x= 1/(9+3x) 2x/(x^26x+9)  1/(x+1) 8/(x^22x3)= (x^2+15)/(x^35x^2+3x+9) first 3 look ok In the last one I
asked by Anonymous 
check math
Here are my answers. Can you check if I got the right answers? Thank you! (x+y)^3= x^3+3x^2y+3xy^2+y^3 [x^(3/2)][x+x^(5/2)x^2] = x^(5/2)+x^4x^(3/2) the last term in the second question should be  x^(7/2), (you were adding 5/2 and 2 in the exponents)
asked by Anonymous 
Science(chem)
In lab...last one ...where I had to go and heat these brass cartileges (I really don't think that's spelled correctly) and the oven was off. So my substitute lab tech for the day went and ...created a oven...yep you hear me right created a oven of
asked by ~christina~ 
WRITING
have your writing habits been affected by the quality and quantity of what you may read? Yes. My writing habits have definitely been influenced by what I read. The major way we learn to write is by reading. We unconsciously emulate authors of published
asked by LATUNJA JONES 
Algebra II
Solve x^2>_2x+24 x^22x24>=0 (x6)(x+4)>=0 So as long as x>6, it works. But what about two negatives? Try x=5..checks...check me on that. So it looks as if inf
asked by Jonathan 
Science
Relative abundance of weight? If a hawk eats a fish and does not acquire all the energy in the fish's body because of the second law of thermodynamics then what implications would have a relative abundance by weight of predators and their prey? I
asked by Rindi