Questions Asked on
July 20, 2007

college algebra
Demand Equation: The price p, in dollars, and the quantity x sold of a certain product obey the demand equation x = 5p + 100, 0 (less than or equal to) p (less than or equal to) 20 a.) Express the revenue R as a funtion of x. b.) What is the revenue if 15
asked by Candi 
Micoeconomics
Your roommate's long hours in the chem lab finally paid off she discovered a secret formula that lets people do an hour's worth of studying in 5 minutes. So far, she's sold 200 doses and faces the following average total cost schedule Quantity Average
asked by JIM 
science( chem)
Calculate the molar solubility of Mg(OH)2 in water I know Mg(OH)2=> Mg2+ + 2OH 2H2O=> H3O+ + OH Ksp= [Mg2+][OH]2 Kw= [H30+][OH] Mass balance [Mg2+]=2[OH] So.. [OH]=2[Mg2+]+ [H3O+] Charge balance is where I get kind of confused I know that the positive
asked by christina 
Microeconomics
The supply of meat in Russia increases, causing meat prices to fall. Lower prices always means that Russian households spend more on meat. There is something wrong with this sentence. What is wrong? The work ALWAYS should not abe in here. Just because
asked by Tami 
Microeconomics
Demand increases, causing prices to rise. Higher prices cause demand to fall. Therefore, prices fall back to their original level. This sentence is wrong. What is wrong with it? If demand increases, wouldn't it stay increased which will not cause the
asked by Tami 
linear algebra
if: A and B are matrices and A^2 is similar to B^2 Is A guaranteed to be similar to B?  Matrix similarity means that the matrices are identical if one of the matrices is converted to another basis. If matrices C and D are similar: C = P^1 * D * P
asked by mathstudent 
Algebra
(x)/(x3)4(2x5)/(x+2) I posted something before this, so now this is how far I got. The answer I know is (5x^217x9)/(x3)(x+2) first I get (x)(x+2)/(x3)(x+2) (4)(x3)(x+2)/(x3)(x+2)(2x5)(x3)/(x3)(x+2) Then I get x^2+2x4x^24x242x^211x+15
asked by Sara 
grammar
Does this sentence has voice issues? The ball was hit by the boy. Plz help explain The ball was hit by the boy. This sentence is in PASSIVE VOICE; that is, the subject is not doing the action of the verb. (Subject = ball; verb = hit) It would be better to
asked by chocolate 
Algebra
(x)/(x3)4(2x5)/(x+2) I posted something before this, so now this is how far I got. The answer I know is (5x^217x9)/(x3)(x+2) first I get (x)(x+2)/(x3)(x+2) (4)(x3)(x+2)/(x3)(x+2)(2x5)(x3)/(x3)(x+2) Then I get x^2+2x4x^24x242x^211x+15
asked by Sara 
Organic Chemistry
Hi, this is a sterechemistry problem. If you have a fisher projection problem with Ch3 at the top, Cl on the left, ethyl group on the right, and a CH double bonded to a CH2 (CH=CH2)on the bottom, it is an S nomenclature correct? I figured out that Cl is
asked by Nancy 
Algebra
Solve Q= (NS)/ N for N So when I multiply both sides by N I get Q(N)= NS I know I am doing something wrong, the answer is in the book which is N=S/(1Q)but I don't understand were the 1 comes from. Could you write it out step by step, so I can see what I
asked by Sara 
linear algebra
Prove that the trace is a similarity invariant. In other words, if two matrices are similar, then they must have the same trace. Got the answer from Wikipedia: tr(AB) = tr(BA) tr(ABC) = tr(CAB) tr(P^1 * A * P) = tr(P^1 * P * A) = tr(A)
asked by mathstudent 
Microeconomics
For each of the following situations for the egg market, describe what the impact on the equilibrium price and equilibrium quanity would be. 1A sureon general warns that highcholesterol foods cause heart attacks.  This would cause the price to drop and
asked by Tami 
Algebra
Posted by Tammy on Thursday, July 19, 2007 at 10:12pm. download mp3 free instrumental remix (3x+4)/(3x4)+(3x4)/(3x+4)  Divide top by bottom (3x4)/(3x+4)(3x+4)/(3x4) Very Big Problem and help would be greatly appreciated For
asked by Sara 
Early Child Ed.
Would you please check these questions and my answers to be sure that I have chosen the most appropriate answer? 1.Which one of the following does NOT agree with the developmental approach? A. Development is influenced only by maturation. B. Development is
asked by Tamera 
Algebra2
i was wondering if someone could check the answer i got for this math problem 7+2(52*9) = 243 I got 19 I think you're supposed to do the parentheses first...but within that, you're supposed to do the multiplication and THEN the subtraction, and then mult
asked by Anonymous 
Algebra
The answer in the book however says (5x^217x9)/(x3)(x+2) so I don't know what I am doing wrong, can you take me step by step through the problem. I have a lot of problems, but I think once I understand what I am doing wrong with this one I can get the
asked by Sara 
Algebra (Re.: Reiny)
The fact that there was that nice symmetry to the question, makes it easier than it first appears. I had it as: (a/b + b/a)รท(b/a  a/b) look at (a/b + b/a) the common denominator for this would be ab, so a/b + b/a = (a^2 + b^2)/ab similarly for (b/a 
asked by Sara 
English
Between the sixth and seventh floors of the building in the stairwell over in the corner. Hi Teacher, how in the world do i fix this? Thank you for using the Jiskha Homework Help Forum. Sorry, but whatever you want fixed does not show! Between the sixth
asked by Anonymous 
science( chem)
For literature citation at the end of a lab report if only the text is used would that have to be cited as well? Or would it not be cited and on the page for literature citation I would type no sources cited? You have to cite anything and everything that
asked by christina 
English
Are these sentences correct: The littel boy handed Santa a list that said he wanted: a truck, a train, and a million dollars. Her mind flew so quicklyshe had so much to rememberthat she forgot to stop at the light First sentence: ~~correct the spelling
asked by Lynne 
Economyst repost
Looks like the formual dropped the exponents when I posted it, I've fixed that below....does this make any more sense? I'm not sure I have the formulas correct for this problem and I do not know what the labor hours are.... Dimex Company, a sheetmetal
asked by Ed 
Early Child Ed.
Would you please check these questions and my answers to make sure I have chosen the most appropriate choice? 1. Prompting and cueing are: A. not useful in learning social skills. B. primarily verbal methods. C. primarily physical methods. D. used to guide
asked by Tamera 
english
punctuating sentences, adding subject/and or verb. I do not get it, I am lost with this assignment. I need help. 1. With five gallons of gas. 2. Because the store was closed. 3. For the seventh time. None of these three is a complete sentence. You need to
asked by Anonymous 
Organic Chemistry
Hi, this is a sterechemistry problem. If you have a fisher projection problem with Ch3 at the top, Cl on the left, ethyl group on the right, and a CH double bonded to a CH2 (CH=CH2)on the bottom, it is an S nomenclature correct? I figured out that Cl is
asked by Nancy 
English
What is the correct punctuation for: The book had some nice features, such as: a hardbound cover, a ribbon for a bookmark, and the author's signatures. How about "Among the nice book's features were a hardbound cover, a ribbon bookmark, and the author's
asked by Lynne 
history
List two to three characteristics of Orientalism. How may Orientalism and prejudice contribute to hate crimes against these groups? Please post your answers and we'll be glad to critique them. This question has been asked by several others. If you put
asked by judy 
English 101
Are these questions correct: German grammar is simple: in that language, there are no exceptions to the rules. Her daughter went on a diet that consisted of all fast food: hamburgers, hot dogs, and french fries. The gardnertook the hoe and the shoveland
asked by Lynne 
Computer Science
Help me find the answers to these brain teasers. #1 I am where the sky is orange; I am where the grass is red; I am the land of violet bananas and the home to blue oranges. What am I? #2 Wha is a word that is 1 syllable but when you add 1 letter the end;
asked by Christa 
English 101
What is the correct way to write: Her dress has nice features, like: its black, long and is made by Givenchi. You should take out like and just put Her dress has nice features; it is black, long and is made by Givenchi. Lynne, I would write "Her lovely
asked by Lynne 
Anatomy and Physiology
Why is the epidural space absent in the brain? Since this is not my area of expertise, I searched Google under the key words "brain 'epidural space'" to get these possible sources: http://depts.washington.edu/anesth/regional/epiduralspacetext.html
asked by Leah