Questions Asked on
February 25, 2007

ScienceEnr. Phys.
A box of books weighing 325 N moves at a constant velocity across the floor when the box is pushed with a force of 425 N exerted downward at an angle of 35.2 degrees below the horizontal. Fink Mu,k between the box and the floor. There have been several of
asked by Sara 
Chemistry (please help me!)
H2(g) + CO2(g) H20(g) + CO(g) When H2(g) is mixed with CO2(g) at 2,000K, equilibrium is achieved according to the equation above. In one experiment, the following equilibrium concentrations were measured: [H2]=0.20 M [CO2]=0.30 M [H2O]=[CO]=0.55M a) What
asked by sara 
biology
Are an organism's characteristics determined only by its genes? Explain. Yes, an organism's characteristics are determined only by It's genes becuase the parents give their offspring genes which determines their characteristics. Is my answer correct? Do I
asked by franny 
Chem
A mixture of chromium and zinc weighing .362 g was reacted with an excess of hydrochloric acid. After all the metals in the mixture reacted 225 mL of dry hydrogen gas was collected at 27 C and 750 torr. Determine the mass percent Zn in the metal sample.
asked by Jim 
Physics
"Relative" is an important word. Block L of mass mL = 1.90 kg and block R of mass mR = 0.500 kg are held in place with a compressed spring between them. When the blocks are released, the spring sends them sliding across a frictionless floor. (The spring
asked by COFFEE 
Chemistry
An important process for the production of acrylonitrile C3H3N is given by the following reaction 2C3H6 + 2NH3 + 3O2 > 2C3H3N + 6H2O A 150 L reactor is charged tot he following partial pressures at 25 C P(C3H6) = .5 MPa P(NH2) = .8 MPa P(O2) = 1.5 MPa
asked by Kim 
Physics
A vessel at rest at the origin of an xy coordinate system explodes into three pieces. Just after the explosion, one piece, of mass m, moves with velocity (30 m/s)i and a second piece, also of mass m, moves with velocity (30 m/s)j. The third piece has
asked by COFFEE 
bond valuation
Bond valuation The Garraty Company has two bond issues outstanding. Both bonds pay $100 annual interest plus $1,000 at maturity. Bondf L has a maturity of 15 years, and Bond S a maturity of 1 year. a. What will the value of each of these bonds when the
asked by Gayla D 
Physics
A stationary block explodes into two pieces L and R that slide across a frictionless floor and then into regions with friction, where they stop. Piece L, with a mass of 2.0 kg, encounters a coefficient of kinetic friction µL = 0.40 and slides to a stop in
asked by COFFEE 
Chemistry help
Hello. Can I get someone to help me set up these problems? 1.) How many moles of N are there in 2.6 moles of NHO3? 2.) How many moles of C2H6 (g) are consumed when 4.4 mol CO2 (g) are produced? 3) How many milliliters of 0.80 M CuSO4 must be diluted to
asked by Nazr 
Science
Neptune's largest satellite is named (Triton) and revolves in a ( ) orbit. Could someone help me fill in the second blank? Please help! Nevermind, I got that question wrong (I'm homeschooled and my computer program grades me) and later found out that the
asked by Jenna 
Math
if x is an even number, what is the quotient of the next greater even number divided by the next greater odd number? i have no idea where to even start with this problem. i would really appriciate some help. Thanks! What can make me studdy harder? hey
asked by Marie 
Chemistry
A XXg sample of methane, CH4, is mixed with YY atm of O2 (an excess) in a VV L combustion chamber at 125.0°C. The combustion reaction to CO2 and H2O is initiated and the vessel is cooled back to 125.0°C. What is the final pressure in the combustion
asked by Jack 
Pre Cal
sin theta  2sin^2 theta = 0 I'm using the up carrot sign to signal "to the power of..." Let sin theta = x x  2 x^2 = 0 x (1  2x) = 0 Both x=0 and x = 1/2 are solutions. theta = 0 degrees, 30 degrees, 150 degrees and 180 degrees. Thank you so much!!! im
asked by Marie 
math.
Each exterior angle of a regular polygon is 15 degrees. 1.Determine the number of sides of the polygon. 2.What is the sum of the interior angles? please help!!!!!!!! i'd love to help but i can't remember how to do those problems. sorry. The sum of all the
asked by Shay 
Math Please check
A package of 16 tea bags costs $2.29. Find the unit price in cents per tea bag. Round to the nearest tenth of a cent. I get 14.3 cent Will you check to make sure I am correct? How do I round it to the nearest tenth? Or is it already rounded to the nearest
asked by Aimee 
bond valuation
Bond valuation The Garraty Company has two bond issues outstanding. Both bonds pay $100 annual interest plus $1,000 at maturity. Bondf L has a maturity of 15 years, and Bond S a maturity of 1 year. a. What will the value of each of these bonds when the
asked by Gayla D 
math
What is the equation for the line of symmetry for the graph of this function? function y = x2  4x  5, if you have a graphing calulator you can put it in there, or just graph it on a piece of paper using a T chart. find it by one of those.
asked by kim 
genetics
Suppose that for an organism, 2N = 8. How many chromosomes do the organism's gametes contain? Would it be 8?
asked by franny 
Chemistry
Can someone just check this one for me? The neutralization reaction between Al(OH)3 and HNO3 produces a salt with the formula Al(NO3)3 + H2O Yes and no. It DOES produce a salt and that salt is Al(NO3)3 with the formula you have. However, the H2O, although
asked by Kellie 
math
write as a single logarithm: 2logbase3(1/x)+(1/3)logbase3(square root of x) please show the steps to solving this. thanx. remember that 1 log (AxB) = log A + Log B (same base) 2 log (A/B) = log A  log B 3 log A^n = n log A use these three rules and it
asked by michelle 
Chemistry
is there such a thing as HOH yes, i'm pretty sure there is but i can't say i'm totally sure. sorry. HOH is another way of writing water. H2O is the convential formula, however, when balancing equations, HOH is very convenient when the OH travels as a
asked by Beautiful 
Chemistry
For the following reaction, what is the approximate value of Delta H? CH4(g) > CH3(g) + H(g) I figured it out.. CH = 411 4 moles on one side 3 on the other so [4*411][3*411] = 411
asked by Wade 
Physics
A man (weighing 915 N) stands on a long railroad flatcar (weighing 2805 N) as it rolls at 18.0 m/s in the positive direction of an x axis, with negligible friction. Then the man runs along the flatcar in the negative x direction at 40.00 m/s relative to
asked by COFFEE 
Molarity
A 15.7mL sample of HNO3 reacts to neutralize 27.7mL of 0.187M KOH solution. What is the molarity of the HNO3 solution? HNO3 + KOH ==> KNO3 + HOH mols KOH = L x M = 0.0277 x 0.187 = ?? mols HNO3 = mols KOH (1 mol reacts with 1 mol). mols HNO3 = L x M You
asked by Kellie 
Accounting
Assume that Hickory Company has the following data related to its accounts receivable: 2005 Net Sales $ 1,425,000 Net receivables Beginning of year 375,000 End of year 420,000 2006 Net Sales $ 1,650,000 Net receivables Beginning of year 333,500 End of year
asked by Denise 
Physics
A 7450kg satellite has an elliptical orbit. The point on the orbit that is farthest from the earth is called the apogee. The point on the orbit that is closest to the earth is called perigee. Suppose that the speed of the satellite is 2940m/s at the apogee
asked by Cavin 
maths geometry
Find and write down a proof that the product of the gradients of two perpendicular lines is 1 Use trigonometry. Let the slope of a line from A to B be m1. Let the slope of a perpendicular line from A to C be m2. The tangent (or slope) of the line between
asked by jigna 
math HOW DO I CONVERT A FRACTION TO A DECIMAL???
how do i convert a fraction to a deciaml?? a) 2 2/5 ?? Divide the denominator into the numerator 2 divided by 5 = 0.4 Add the whole number 2 and you have 2.4
asked by sarah 
science
a experiment to prove that a freely suspended or floating magnet always point in the north south direction plz help got my trails!??!?!?! how do i get the ans to this question?????? That doesn't look like a question. It looks like a suggested experiment to
asked by salina 
Biology
How do nucleaotides join to form nucleic acids? Name the bond formed. http://www.sparknotes.com/biology/molecular/structureofnucleicacids/section1.html
asked by Raj 
Biology
The organelle where the protein altered in cystic fibrosis is recognized as being abnormal is? Is it endoplasmic reticulum, the Golgi apparatus, lysosome, or the ribosomes or nucleus? http://en.wikipedia.org/wiki/Cystic_fibrosis
asked by aj 
maths geometry
A straight road separates towns A (grid ref 42,45) and B (grid ref 52,40) A village is situated at grid ref (46,57) and a new road is planned from the village to road AB. What is the shortest road possible (1 dp) Please define an origin and a set of axes
asked by jigna 
Chemistry
If I have the temperature, the pressure and the mass how do I calculate the volume? Thanks Of a gas? PV=nRT The ideal gas law. calculate n from the mass and mol mass.
asked by Laura 
chemistry
How do I calculate the mas of oxygen that combines with one mol of arsenic atoms to form the oxide of arsenic? How would I use this answer to obtain the empirical formula of the oxide? The formula for the most common form of arsenic oxids is As2O3. Write
asked by Laura 
Math
The average of X numbers is 15. If the sum of the X numbers is 90, what is the value of X? A)5, B)6, C)8, D)15 or E)75 What is the correct answer and how do you set up the equation? The answer is b)6 because if there are 15 average numbers and the sum is
asked by George 
science
Is ATP synthesized when chemical bonds between carbon atoms are formed during photosynthesis OR when energy stored in chemical bonds is released during cellular respiration?
asked by ari 
Math Desperate for help!
Find the amount in an account if $2000 is invested at 6.125%,compounded semianually,for 2 years. A. $2,256.49 B. $2,252.50 C. $2,324.89 D. $544,757.84 One of these is the correct answer. I am coming up with (D) 544,757.84 Can you check, because I am
asked by Hilda 
bobpursly, check please,math
do you mean like this: 720/(V30) + 720/(V+30) = 10 Get a common denominator of (v30)(v+30) then multiplying both sides by that, then (v30)(v+30)X 720(V+30) + (v30)(v+30) X 720(V30)=(v30)(v+30)X 10(v30)(v+30) then multily out, and solve for v.
asked by jas20 
math
Boris gets an 8% commission on every car he sells.Last week, he made a commission of $1,240.What was the price of the car he sold? Do a proportion: 8% is 8 over 100 or: 8/100 and you know his commision is commision over the price. his commision is 1240,
asked by cristina 
Roosevelt and Hayashi
Hi, Can any one tell me the relations between TR Roosevelt and Tadasu Hayashi? Were there any tensions between these too? I have been Googling for hours and I can not seem to find connections between the two. Thanks Hayashi was the Japanese foreign
asked by Sarah 
Biology
The diversity of chemical reation occuring in a cell depends mostly on certain molecules present in the cells are called? It's one of these proteins, coenzymes, or enzymes. i believe it is enzymes, but i could be wrong. correct
asked by aj 
math
Let F1=(6,0) ,F2=(6,0) A=(10,0)64 + and B=(10,0) write an equation of the set of all points p(x,y) such that (PF1/pluse /PF2/=20. now i know the problem is the square root of (x+6)^2 +y^2 + the square root of (x  6)^2 + y^2 = 20 and the anserew is
asked by jess 
math
Use the following missing pieces to complete the runaway math puzzle. 2 6 6 0 1 8 0 5 Rewrite the equations from the runaway math puzzle. 1. __  __ = ___ + ___ 2. 1 4  ___ = ___+ 5 3. ___ ____ = ___ + ___ 4. 8 + ___ = 1 5  1 figure it out thank you
asked by tyrese 
English
Help! I can't find any information on the origin of the idiom/expression: Grease someone's palm. Please help me! Scroll down to the Online Etymology Dictionary at this site. It explains related uses of "grease" and gives a date for the origin of "grease
asked by Calie 
please help!!!!! someone
Each exterior angle of a regular polygon is 15 degrees. 1.Determine the number of sides of the polygon. 2.What is the sum of the interior angles? if the exterior angle is 15, then the interor angle is 165. 165n=(n2)180 solve for n. I need help to study
asked by Shay 
Chemistry
Hello. Can I get someone to help me set up these problems? 1.) How many moles of N are there in 2.6 moles of NHO3? 2.) How many moles of C2H6 (g) are consumed when 4.4 mol CO2 (g) are produced? 3) How many milliliters of 0.80 M CuSO4 must be diluted to
asked by Nathan 
math
how do i convert a fraction to a deciaml?? a) 2 2/5 ?? Divide the numerator of the fraction by the denominator
asked by sarah 
math. HOW DO I CONVERT A DECIMAL TO A FRACTION
how do i convert a decimal to fraction in SIMPLEST FORM? a) 2.756 ?? Write out the 0.756 as 756/1000, then reduce it to lower terms if you can. Since both numerator and denominator are evenly divisible by 4, 756/1000 can be reduced to 189/250. The mixed
asked by sarah 
algebra
How do you simplify (4x^3y^5)^2? are you using the carrots for symbolising "the power of..." or fractions? if i know what your using them for then i can help you. yes. 3^2=9 okay. then it would help to put the exponents out of the parenthesis:
asked by Jack 
help,math
can some set the equation up for me. Science and medicine. A plane flies 720 mi against a steady 30mi/h headwind and then returns to the same point with the wind. If the entire trip takes 10 h, what is the plane’s speed in still air? i thought it was
asked by jas20 
math
) A wierd number is a number that is the product of two consecutive primes, such as 7x11=77 . What is the least common multiple of the 5 smallest wierd number 7) According to an ancient belief, when a friend visits a sick person, 1/70 of his sickness is
asked by brenton atcheson 
Electricity
Just a quick one: Is current (I) directly proportional to resistance (R) in a piece of resistance wire? Would the current  resistance graph be a straight line or a curve? Help greatly appreciated. It would not be a straight line. For a fixed applied
asked by John 
History Essay
I have to write a report on the Articles of Confederation and some of the problems with them. I have done some research, but I still need more info. Could you help? Check these sites. http://bensguide.gpo.gov/912/documents/articles/index.html
asked by Jenna 
Chemistry
The question says Sufuric acid reacts with Aluminum hydroxide by double replacement. I have the reactant side I just need the product side because I need to know does aluminium replace Hyrdrogen, really confused see Ms J question above
asked by Beautiful 
conjectures
Evaluate the following sums: 1 1+8 1+8+27 1+8+27+64 Add two more line to the list, and make a conjecture about the sums you obtained. this is a pattern. if you look closely than you'll see each number is a product of another number cubed.
asked by Shay 
statistics
homework due by 8am on 2/26...spent too much time with bad websites....still no answers....need help with simple random sample...Have 460 clients...need SRS of 20 clients for survey...Have a number table to select sample from:13873 81598 95052 90908 73592
asked by nancy 
Church
What does Salvation mean? from http://www.answers.com/salvation sal·va·tion (sălvā'shən) n. Preservation or deliverance from destruction, difficulty, or evil. A source, means, or cause of such preservation or deliverance. Christianity. Deliverance
asked by Bryan 
chemistry
1. in which group is bromine found(on the periodic table)? 2. what is the name of its chemical family? 3. in which group is magnesium found? 4. what is the name of its chemical family? 5. in which group is potassium found? 6. what is the name of its
asked by michelle 
english essay
Thanx alot again. Writeacher, Jenna, jk1115, for all your help thank you so much. Introduction: Topic: male/female communication Comparison of two articles (state article names) state thesis... i need help on this... What are the titles of the two
asked by san 
chemistry  check please
Have I balanced this right Al2Se3 + 6 H2O ==> 2 Al(OH)3 + 3 H2Se Let me give you a hint on these, write water as HOH, and it balances faster. Treat the OH as a group. Al2Se3 + 6 H(OH) ==> 2 Al(OH)3 + 3 H2Se Yes, it is balanced: see the six H on each side,
asked by Laura 
chemistry
What is polymerization and what type is involved in forming a polymer when I have CH3 N CH O C and NH3 Can any one help please Polymerization is the chaining of monometers. Look for the double bond, it breaks, and forms a chain.
asked by bex 
please help!!!!
Maurice drove 400 km from Edmonton to Battleford in 1 hour less time than it took Martin to drive the same route from Battleford to Edmonton. If Maurice drove 20 km/h faster than Martin, at what speed did each of them drive? Show a complete algebraic
asked by Shay 
fix grammar
The book had some nice features, such as: a hardbound cover, a ribbon for a bookmark, and the author's signature. The only error is in the verb tense. I assume the book is still in existence, so you'd use the present tense  has. In addition, you don't
asked by Mary 
Accounting
The president of Penman Corporation, John Burton, has asked you, the company’s controller, to advise him on whether Penman should develop a justintime (JIT) inventory system. Your research concludes that there is a high cost associated with inventory
asked by Denise 
Pre Cal
(1/3)LN27 + 2LNx = LN(2x) i think i just need help getting started.
asked by Marie 
English
The only things I find are libraries or universities where the text can be found. http://www.worldcatlibraries.org/wcpa/top3mset/7bfa84f7aca723fea19afeb4da09e526.html http://www.upress.virginia.edu/epub/pyatt/chap01.html etc. =) i'm looking for the essay
asked by Writeacher 
algebra
Maurice drove 400 km from Edmonton to Battleford in 1 hour less time than it took Martin to drive the same route from Battleford to Edmonton. If Maurice drove 20 km/h faster than Martin, at what speed did each of them drive? Show a complete algebraic
asked by Shay 
Spanish 1
I have to match the verb with the subject. 1.Maria(estudiar) 2.Nosotros(comer) 3.Yo(ser) alta, pero el(ser) 4.El y ella no(vivir) 5.Tu (estar) Maria Estudia Nosotros Comemos Yo soy alta, pero el es el y ello no viven tu estas (accent on a) (present tense)
asked by Aubrey 
math
) A wierd number is a number that is the product of two consecutive primes, such as 7x11=77 . What is the least common multiple of the 5 smallest wierd number 7) According to an ancient belief, when a friend visits a sick person, 1/70 of his sickness is
asked by brenton atcheson 
stuck
thirteen contains six letters. t, h, i, r, e, n A word I know six letters it contains subtract just one, and twelve is what remains cool riddle. twelves has six letters and subtract one(s) it makes twelve
asked by bobpursley 
MATH
What number is less than10^8? a)0.000001 b)0.0000001 c)0.00000001 d0.0000000001 10^(8) = 0.00000001 figure it out from there. hint: (c) = 10^8
asked by JJ 
Biometrics II
If these samples were drawn from a population with mean male weight of 180 and mean female weight of 165, what is the probability that the difference between the mean male and female weights would lie between 4.5 and 27.8?
asked by Noel 
Solutions
When adding 100mL of water to a solution of 50grams of KI in 400mL of water, the total amount of KI in the new solution will be how many grams? Did I miss something here? The total amount of KI, if no extra is added and none taken away, MUST be 50 grams?
asked by Kellie 
Fun Fact!
Benjamin Franklin complained, "Let the smaller Colonies give equal money and men, and then have an equal vote. But if they have an equal vote without bearing equal burthens, a confederation upon such iniquitous principles will never last long." Franklin
asked by Jenna 
MathSlope
a) Why is Slope important when an airplane takes off. Explain. b) What might affect the slope of the plane at takeoff? Explain. Thanks.
asked by May 
conjectures
I'm finishing my math 20 Pure. This is my last 20 course then i have 30's. Also I have to work a full time job so that I can live on my own with my boy. So it is tough but I'm doing alright. What about you? wow, okay i have no idea what all that is but
asked by Shay 
Spanish
I'm reading [and translating] the poem "LlÃ©nalo de Amor" by Amado Nervo. I've gotten most of it down, but I'm stuck on one line. No te preocupes de la finalidad de tu amor. Ã‰l lleva en sÃ mismo su finalidad. It's more the second line that I'm
asked by Chris 
Ratio queston
find the ratio of the first number to the second number and simplify: 36 to 88 would it be 9/22 ? yup! good job!
asked by Jenna 
math proportions
17/32 = x/100 1700 = 32x x= 53 1/8 Am I right? yep
asked by Walter 
english essay
Here is a sample outline for the essay: Introduction: Topic: male/female communication Comparison of two articles (state article names) state thesis Body: Summarize both articles Comapare and contrast both articles argue for which one is better provide
asked by san 
Pre Cal Check
focus: (0,p) vertex: if not given, then it is assumed (0,0) Directrix: k+p or kp, i'm not sure I think these are the general equations for the focus, vertex, and directrix of a parabola, but i'm not sure. could someone please check this? thanks.
asked by Marie 
Biology
What is the last step in the synthesis of secretory protein synthesis? I think it is exocytosis but the other choices I have are tagging, endocytosis and osmosis. http://en.wikipedia.org/wiki/Exocytosis
asked by Ayeisha 
business
Small companies typically have difficulty competing against large multinationals when their governments take part in regional trade blocs. What could governments do to help their small companies compete after the formation of such blocs? Governments mpose
asked by joni 
maths
According to health and safety policy, classrooms should allow for 1.8sqm of floor space per person and an additional 9sqm. A plan indicates that a classroom's floor dimensions should be 12.0m by 4.5m a Based on these figures, clculate the maximum number
asked by temise 
chemistry
if a structural isomer has an OH attached, i don't understand why it's unlikely that it'll be a liquid at room temperature. I think, I'm not sure, but because both O and H are gases I can think of many alcohols that are liquid at room temperature.
asked by christine 
history
Could you please help me with these questions to kind of get me going on this general topic I must write about? What did children do in the United States before the first compulsory acts were enacted? How, if at all, did they educate themselves? How would
asked by Ann 
Chemistry
How would you make a starch molecule? What is the name of the bond formed between glucose molecules? Answered above.
asked by Raj 
Finance
Forecasting Payments. If a firm pays its bills with a 30day delay, what
asked by Anonymous 
Chemistry
How would you make a starch molecule? What is the name of the bond formed between glucose molecules? I think I got it. They are formed by long chains of glucose molecules joined together by a glycosidic link. Can anyone confirm if this is correct? I
asked by Raj 
english
Which tense (simple or past) do I use to describe a hotel I visited last month? For example: I stayed at the Paris hotel with my parents last month. The hotel has (or Had?) a replica of the Eiffel tower. Thanks present tense, has, because even though you
asked by David Lai 
human physiology!
what do epithelial and connective tissues form? Would this help? I don't know much about the subject myself. botany.uwc.ac.za/sci_ed/grade10/mammal/Epithelial.htm
asked by HELPPP PLEASE!! 
Biology
Are all of these examples of activation energy? If not which ones aren't. 1.To go forward on your bicycle, you must paddle. 2. A wind gust knocks a chimney brick to the ground. 3. Sound vibrations move the hairs in your ears stimulating the nerves in your
asked by Ayeisha 
Japan
I need to write a paper on what are some of the nonverbal and verbal communications that are practiced in Japan. Thank you for using the Jiskha Homework Help Forum. Here is something to help you: Hakoniwa:
asked by jeana williams 
Chemistry
If the percentage of arsenic is 76% and the percentage of oxygen is 24% how do I calculate the chemical composition of the oxide of the arsenic? Thanks Pretend you have 100 grams of the stuff. Then 76 grams of As is how many moles? 76/74.9 =1.01 moles. How
asked by Laura 
deposition
What is deposition? Effects of deposition? whats made by deposition? Thank you for using the Jiskha Homework Help Forum. Anytime you don't understand a word, be sure to look it up in a good dictionary. For example, here is what the online dictionary says:
asked by Anthony 
Algebra HELP!
6(7x  5) =  114 HELP!!!! distribute the 6 to the 7x and 5. then solve for x. Make sense? Thanks alot Marie! 6(7x5)=114 42x35=144 +35=+35 42x=109 42x/42=109/42 x=2 61/42
asked by George 
Chem in relation to Beuatiful's question
The question says Sufuric acid reacts with Aluminum hydroxide by double replacement. I have the reactant side I just need the product side because I need to know does aluminium replace Hyrdrogen, really confused hydroxides react with acids to form a salt
asked by Ms. J 
English
Does anyone have any more information on the origins of the idiom "grease someone's palm"? check out this site: phrases org.uk/meanings/index.html but put a period between phrases and org This site will give the history of idioms http://www.idiomsite.com/
asked by Calie 
Proportional LengthsDesperate for help!!!
The lengths in the figure are proportional. In the first figure 3 on top, and 2 on the bottom In the second figure 4 1/2 on top, and x on the bottom These are the choices that are written on my assignment. One is the correct answer. A. 4 1/2 B. 3 C. 2
asked by Walter 
values for k, math,help
can someone show me the steps to work out this problem that is diving me nuts.. Directions: Find all positive values for k for which each of the following can be factored. x^2+xk I am completely cluelis towards this problem....i've tried it many different
asked by jas20 
PreCalc
I need to figure out how to solve the equation xsquared ysquared+xy=1 i have no clue. I would appreciate any help! did you mean (x^2)(y^2) + xy = 1 ??? If so, are you solving for x or y? Suggestion: let xy = a, then you have the equation a^2 + a  1 = 0
asked by Jill 
Biometrics
If these samples were drawn from a population with mean male weight of 180 and mean female weight of 165, what is the probability that the difference between the mean male and female weights would be greater than the observed sample? (The sample means are
asked by Noel 
sarah
22 2/5  1 1/4 x (2 1/2) = How do i work that out?? Decide which operation to perform first. Your single pair of parentheses around one number does not help. Is it (22 2/5  1 1/4) x 2 1/2 or 22 2/5  (1 1/4 x 2 1/2) ? They are not the same.
asked by sarah 
english
how is shylock portrayed in the first three scenes of The Merchant Of Venice? You can read about this character here: http://www.sparknotes.com/shakespeare/merchant/canalysis.html from http://www.sparknotes.com/lit =)
asked by nancy 
English
Help! I can't find any information on the origin of the idiom/expression: Put your foot in your mouth. Please help me! "put one`s foot in one`s mouth  get into trouble by saying something embarassing or rude My colleague put his foot in his mouth when he
asked by Johnathan 
Pre Cal
how would i find the degrees of cos x= 3/2 if (0
asked by Marie 
U.S. HISTORY
thanx so much, but how would they give confidence to the new deal? http://en.wikipedia.org/wiki/Fireside_chats Interesting article: history of Roosevelt's use of "fireside chats." =) thanx sooo much! what is it about the fireside chats that restored
asked by INEEDHELP!!! 
electronics
definition, kinds/types, illustration, equation, tables/graphs of: a) diodes b)capacitors c) conductors, semiconductors, insulators d)transistors e) integrated circuit f) logic gates Try looking these up in the online encyclopedia "Wikipedia".
asked by Danielle Stacey 
forces
What forces can be seen in action in the classroom Gravity, for one. It's what keeps people in their seats. What about whatever moves the hands of the clock on the wall, or the chalk on the blackboard, or the door on its hinges?
asked by laura 
math,correction
okay for the first one i/ve done it twice and both times i got 10, not 10. check your work to make sure you did it correctly. for the second one i got 24 so you are correct Directions solve for x. (x)/(x2)(x+1)/(x)=(8)/(x^22x) The answer i get is :
asked by Marie 
anatomy
why can adults continue to function relatively normally after surgery to remove the thymus or spleen?
asked by sue 
Marie
Maurice drove 400 km from Edmonton to Battleford in 1 hour less time than it took Martin to drive the same route from Battleford to Edmonton. If Maurice drove 20 km/h faster than Martin, at what speed did each of them drive? Show a complete algebraic
asked by Shay 
pre cal
(1/3)LN27 + 2LNx = LN(2x) i think i just need help getting started. I assume that your LN notation is log to base e. I will call it ln. (1/3)ln 27 = ln (27)^(1/3) = ln 3, (since 27^(1/3) is the cube root of 27). Therefore ln 3 + 2 ln x = ln (3 x^2) = ln
asked by Marie 
MATHS***
22 2/5  1 1/4 x (2 1/2) = How do i work that out?? Duplicate post; already answered.
asked by sarah 
factoring,math
can someone show me how to factor this: i keep getting 6 and 5 but i want to factor: x^2+7x+6 x^2+7x+6 = (x+1)(x+6) This means the roots of x^2+7x+6 = 0 ar 1 and 6 duhhhhh...i was thinking completely wrong..thank you 75 75
asked by jas20 
electronics
definition, kinds/types, illustration, equation, tables/graphs of: a) diodes b)capacitors c) conductors, semiconductors, insulators d)transistors e) integrated circuit f) logic gates I will be happy to critique your work on this. I am not about to do it
asked by Danielle Stacey 
ScIeNcE
To make my my question simpler, is ATP formed during photosynthesis or cellular respiration? If I can figure out that little fact I'll be able to do the rest of my worksheet...
asked by ari 
DRWLS
cAN YOU LOOK AT THE PREVIOUS POST. i am completely lost towards that equation...how do i even solve it because then i would have to cross multiply or cancel and that will give me zero.
asked by jas20