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July 23, 2014

Search: function ( partial fraction)

Number of results: 15,021

partial fractions
(7x^2-16)/(x^2-2x) solve by using partial fraction decomposition. i cant figure out how to do this because after i split up the bottom the A and B dont end up having an x^2 in order to equal the numerator of the original fraction. so confused!
July 20, 2011 by gabs

function ( partial fraction)
if f(x) ax^2+bx+c , g(x) :1/3x^2+2 and fg(x)= 18x^4+24x^2+11/(3x^2+2)^2. find a ,b and c
December 17, 2011 by kingwendu

Maths
If z=(x^n) f(x/y), where f is an arbitrary function, show that: x(partial z/partial x) + y (partial z / partial y) = nz Can someone please show me how to work it out? Thanks!
February 3, 2010 by Claire

chemistry
The time dependent concentration of solute particles in a solution is given by c(r, t) = [n/8(pi D t)^(3/2)] e^(-r^2 /4 D t) where r^2 = x^2 + y^2 + z^2 with x, y, and z being the values of three components of the position in the Cartesian coordinate system. a) Show that the ...
December 2, 2009 by drifting

calculus
Write the form of the partial fraction decomposition of the function do not determine the numerical values of the coefficients. 1/x^4-2401
July 28, 2013 by April

Calc
Classify all critical points of the function f(x,y)=x^2-y^2+4x-2y+1. I know I have to take the partial derivative and set them equal to zero to get my points and then use the Hessian. For some reason I am not getting the correct answer. partial d/dx 2x+4 and partial d/dy 2y-2 ...
December 9, 2007 by Britt

Maths-Integration by Partial Fraction
Use integration by partial fractions to find Integral (3x^2-x+2)/(x-1)(x^2+1) dx
December 12, 2012 by Anonymous

Partial Decompostion Fractions
Can you please help me with the following questions please, I dont understand them. I know the general rule about them. Write the partial fraction decomposition of the rational expression. (x^2+4x-1)/(x^2+3)^2 (4x^3+4x^2)/(x^2+5)^2
November 17, 2007 by Soly

Algebra-Partial Fractions
Can you please help me with the following questions please, I dont understand them. I know the general rule about them. Write the partial fraction decomposition of the rational expression. (x^2+4x-1)/(x^2+3)^2 (4x^3+4x^2)/(x^2+5)^2
November 19, 2007 by Soly

physics
Part (a) of the figure below is a partial graph of the position function x(t) for a simple harmonic oscillator with an angular frequency of 1.00 rad/s; Part (b) of the figure is a partial graph of the corresponding velocity function v(t). The vertical axis scales are set by xs...
February 4, 2011 by rock

Calc Help Please Again Last one!
Write out the form of the partial fraction decomposition of the function appearing in the integral: integral (6x-58)/(x^2+2x-63) Determine the numerical values of the coefficients, A and B, where A <= B A=? B=? Thank you guys so much! =)
May 16, 2014 by Josh

Physics
Figure a is a partial graph of the position function x(t) for a simple harmonic oscillator with an angular frequency of 1.75 rad/s; figure b is a partial graph of the corresponding velocity function v(t). The vertical axis scales are set by xs = 2.50 cm and vs = 2.50 cm/s. ...
March 16, 2012 by Anna

College Chemistry
A mixture of He and O2 is placed in a 4.00L flask at 32 degrees Celsius. The partial pressure of the He is 2.7 atm and the partial pressure of the O2 is 1.4 atm. What is the mole fraction of O2?? I don't understand how to do this.
March 9, 2010 by Fernando

Chemsitry II
mole fraction is equal to partial pressure divided by the total pressure Total pressure= sum of partial pressure use PV=nRT where n= number of moles equation become PV/RT=n make sure to convert the temperature to Kelvin and to use 0.0821 for R. V=volume, P=total pressure The ...
May 10, 2007 by Delli

Chemsitry II
The partial pressure of CH4(g) is 0.185 atm and that of O2(g) is 0.300 atm in a mixture of the two gases. a) What is the mole fraction of each gas in the mixture? b) If the mixture occupies a volume of 11.5 L at 65 degress C, calculate the total number of moles of gas in the ...
May 10, 2007 by Jayd

CHEM HELP
The partial pressure of water above a solution of water and a nonvolatile solute at 25oC is 19.2 mm Hg. What is the mole fraction of the solute please help....I really don't know how I am supposed to solve this question. I know that Partial pressure of the solvent above a soln...
February 13, 2009 by jerry

Chem
A gas mixture in a 3.100 L container at 415C contains 1.30 g each of Ar, CO, and CH4. Find the partial pressure of Ar (in atmospheres). Find the total pressure of the gas mixture (in atmospheres). Find the mole fraction of CO. Do I use PV=nRT for partial pressure and if I do ...
November 1, 2012 by Anoynmous

Math
Calculate the integrals by partial fractions and using the indicated substitution. Show the results you get are the same. dx/1-x^2; substitution x= sin pheta I understand how to do the partial fraction part, but not the second part and I dont know how they are similar. Any ...
February 25, 2008 by Jessica

calculus
find the exact length of the curve y = ln(1-x^2), 0 <= x <= (1/2) So by doing the work I eventually get down to integral from 0 to 1/2 (1 + x^2)/(1-x^2) dx but I keep getting -1 + 1/(x-1) - 1/(x+1) after partial fractions which gives the answer ln(1/3) - 1/2 when I ...
March 13, 2013 by Daniel

Calculus
Find the equation of the tangent plane at the given point. 1)x^2+y^2-z=1 at the point (1,3,9) 2)x^2*y^2+z-40=0 at x=2, y=3 3) x^2+ln(xy)+z=6 at point (4,0.25,2) For the first one I got the partial fraction in terms of x, y and z and my final answer was -2x+6y-z+2. I don't know...
October 4, 2012 by Alicia

chemistry
When determining partial negatives and partial positives, does the partial postive go with the more electronegative atom? Ex: C=O, the polarity arrow goes toward the O because its more electronegative than the C but which atom gets the partial negative and which has the ...
October 3, 2007 by AMY

Calc II
Perform long division on the integrand, write the proper fraction as a sum of partial fractions, and evaluate the integral: (integral of) 2y^4dy/y^3 - y^2 + y - 1 After long divison I get: (integral of)2ydy + 2(integral of)dy + (integral of) 2/y^3 - y^2 + y - 1 I keep getting ...
December 6, 2009 by Jenna

Chemistry
The vapor pressures of ethanol (C2H5OH) and 1-propanol (C3H7OH) are 100 mmHg and 37.6 mmHg, respectively. Assume ideal behavior and calculate the partial pressures of ethanol and 1-propanol at 35 degrees Celsius over a solution of ethanol in 1-propanol, in which the mole ...
March 18, 2010 by Arnold

Chem
A mixture of He Ne and 3rd gas exhibit a total pressure of 486 mm hg if the partial pressure of He125mm mm hg and partial pressure of Ne is 214mm hg what is the mole fraction of the 3rd gas in container
April 21, 2013 by Ray

Algebra
Below is my problem with my answers. I don't think this is that tough, but I cannot believe that my ABC answer's are a fraction. Did I do this correctly? Find the unknowns on the right side of the partial fraction. (x+3)/(x^3+64)=(A)/(x+4)+(Bx+C)/(x^2-4x+16) x=0 A= (-x^2B-4xB-...
April 18, 2008 by Tim

Chemistry partial molar volumes
The partial molar volumes of the CCl4 and benzene are 122cm3/mol and 98.0 cm3/mol, respectively in a solution in which mole fraction of chloroform is 0.2. Calculate the volume occupied by 2.5 moles of the solution. Thank yOu.
August 24, 2011 by Urgent pls.

partial fraction
if f(x) ax^2+bx+c , g(x) :1/3x^2+2 and fg(x)= 18x^4+24x^2+11/(3x^2+2)^"
December 16, 2011 by kingwendu

Mathematics
Is there Anybody can help me on this? Bless you. Express (2x^4-2x^3+x)/((2x-1)^2(x-2)) in partial fraction.
October 1, 2008 by LingQiWarm

Mathematics
Express (x^6-x^5-4x^2+x)/(x^4+3x^2+2) in partial fraction. Help anybody? Much appreciated.
October 1, 2008 by LingWarmQi

Mathematics
Express (x^2+23)/((x+1)^3(x-2)) in partial fraction. Thanks very much
October 1, 2008 by WarmQiLing

Math
Express in partial fraction.7x^2-18x-7 divided by (x-4)(2x^2-6x+3)
April 10, 2011 by Emma

Math
Express in partial fraction.7x^2-18x-7 divided by (x-4)(2x^2-6x+3)
April 10, 2011 by Emma

Pre-Calculus(Help)
Partial Fraction of the Rational Expression: x^2+x+8/x^3+x
December 4, 2011 by Joshua

Physics Phase Constant
Figure A [[which i tried to recreate below]] is a partial graph of the position function x(t) for a simple harmonic oscillator with an angular frequency of 1.1 rad/s. [a] ............x(cm).............. .................5...
April 4, 2007 by COFFEE

Mathematics
Anybody know how to do this? I need help ASAP..Express (x^2-x)/((x^2+3)(x^2+2)) in partial fraction. Thanks a lot.
October 1, 2008 by WarmQiLing

math
how do you integrate 30x^2/((x-2)(x+3)(x-5)) using partial fraction decomposition
February 15, 2009 by Lauren

precalc
Write the partial fraction decomposition of the rational expression. 6x^2+1/x^2(x-1)^2
December 4, 2011 by Robert

Pre-Calc
How do I solve this via partial fraction decomposition? (x^2+9)/(x^4-2x^2-8)
April 12, 2013 by Micki

Calculus II
using integration by partial fraction, prove that pi + integral from 0 to 1 of x^4(1-x)^4/1+x^2 = 22/7
April 6, 2014 by chelsea

chemistry
The gases in a mixture have the following partial pressures at the same volume and temperature: 1,013,000 Pa nitrogen, 700 mm argon, 1.20 atm of helium, 790 torr oxygen, and 0.50 atm of carbon dioxide. Rank these gases in order of increasing mole fraction, putting the gas with...
April 29, 2010 by tete

Mathematics
Express (3x^3+2x^2+2x-3)/((x^2+2)(x+1)^2) in partial fraction. Help any1 plz ASAP. Thanks a million
October 1, 2008 by QiWarmLing

PRE CALC
please help me solve this partial-fraction decomposition! 12x-57/(x-3)(x-10)
May 15, 2011 by esora

precalc/trig
Write the partial fraction decomposition of the rational expression. 4x^219x+31/ (x+2)(x^24x+5)
December 3, 2011 by Robert

Math
Write the partial fraction decomposition of the rational expression. (80-14x)/(x^3 -8x^2 +16x)
February 16, 2012 by Chelsea

Math
I need help with this partial fraction problem. Find the indefinite integral of (-5x^3+5x^2-5)/(x^4+X^3). I got -5(log(x+1)+(1/x)-(1/(2x^2)).
February 15, 2009 by Sandra

Precalculus
Ok u have to put X^3-8 divided over X^2(X-1)^3 Into a partial fraction I need help please
February 23, 2010 by Sinya

math
write a definition for an equivalent fraction. A. a fraction of multiplication B. fraction with unlike denominators C. a fraction with the value of n D. a fraction thar represents equal amount I put down D.
July 29, 2012 by Ami

algebra
write the partial fraction decomposition of the rational expression ax over x squared -x-2 or ax ____________ xsquared-x-2
November 1, 2010 by frank

Calculus
Write the form of the partial fraction decomposition of the rational expression. It is not necessary to solve for the constants: 4x + 1/(x + 6)(x - 5) I came up with A/x + 6 + B/x - 5
November 28, 2007 by Kelly

Trig
How would you write the partial fraction decomposition of the rational expresion 1/(x^2)-25? I know that you factor the denominator, so that's 1/(x-5)(x+5). What are the next steps?
May 10, 2011 by JD

pre-calculus
partial fraction; use the rational roots theorem to factor denominator. x^3 + 2 ----------- x^4 +8x^2 +16 i got to that and im stuck Ax+B + Cx+D ---- ----- x^2 +4 x^2 + 4
March 27, 2013 by jinie

Maths
When the numerator and denominator of a fraction are each increased by 5, the value of the fraction becomes 3/5 When the numerator and denominator of that same fraction are each decreased by 5, the fraction is then 1/5 Find the original fraction. (Hint: Let the fraction be p/q...
November 13, 2010 by Jannie

Math
Find the partial fraction decomposition for the ration expression. (4x^2 + 9x - 8) / x(x+2)^2 So far, I believe the format is (A/x) + [(Bx+c)/(x+2)^2] ...and I get confused after that. Help plz! Thank you!
December 29, 2008 by Naoko

Chemistry
A gas mixture contains 1.16 g N2 and 0.89 g O2 in a 1.49 L container at 16 degrees C. What is partial pressure of N2 & O2? *I already know the mole fraction for N2 is 0.60, and 0.40 for O2. I just don't know where to go from here.
October 11, 2010 by Michelle

Chemistry
In a gas mixture of He, Ne, and Ar with a total pressure of 8.40 atm, the mole fraction of Ar is ________ if the partial pressures of He and Ne are 1.50 and 2.00 atm respectively. pHe = 1.50 atm. pNe = 2.00 atm. pAr = 8.40 atm - 1.50 - 2.00 = ?? mole fraction Ar = pAr/total p.
January 14, 2007 by john

Physics Phase Constant
..im really stuck on this. can someone please explain? ------- Figure A [[which i tried to recreate below]] is a partial graph of the position function x(t) for a simple harmonic oscillator with an angular frequency of 1.1 rad/s. [a].....x(cm)....... ........5...
April 4, 2007 by COFFEE

Chemistry
Heat Capacity at constant volume: CV = (partial q / partial T) with V constant since volume is constant, work is zero and dq = dU, so CV = (partial U / partial T) with V constant Delta U = CV * Delta T Does this final relationship hold during a reaction where volume is NOT ...
March 4, 2009 by jake

Chemistry
If N2 is added to a balloon that contains O2 (partial pressure 450 mm Hg) and CO2 (partial pressure 150 mm Hg) to give a total pressure of 850 mm Hg, what is the partial pressure of each gas in the final mixture?
April 10, 2013 by Ryan

Chemistry
If N2 is added to a balloon that contains O2 (partial pressure 450 mm Hg) and CO2 (partial pressure 150 mm Hg) to give a total pressure of 850 mm Hg, what is the partial pressure of each gas in the final mixture?
April 12, 2013 by Ryan

algebra
Could somebody tell me in simple terms why equating coefficients works in partial fraction decomposition? Like a simplified proof or something? I don't understand why.
June 6, 2011 by Jack

math (2)
Find the first partial derivatives of the function. f(x,y,z) = xe^(y/z) a. fx = ? b. fy = ? c. fz = ?
April 30, 2014 by Mia

math (2)
Find the first partial derivatives of the function. f(x,y,z) = xe^(y/z) a. fx = ? b. fy = ? c. fz = ?
May 1, 2014 by Mia

math
Will someone please show me how to do this problem. I have to write this ratios in simplest form. The ratio of 5 3/5 to 2 1/10. Change each of your mixed fractions to an improper fraction, then divide the first by the second. Remember to divide fraction #1 by fraction #2, you ...
February 4, 2007 by jeff

Math
The denominator of a fraction exceeds twice the numerator of the fraction by 10. The value of the fraction is 5/12. Find the fraction.
January 18, 2013 by MP

chemistry
A gaseous mixture at a total pressure of 1.50 atm contains equal molar amounts of He, Ne, and Ar. At constant temperature CO2 gas is added to the mixture until the total pressure is 3.00 atm. Which of the following is a correct statement concerning partial pressures after the ...
April 18, 2008 by Sam

Calculus ll
Find the partial derivative of the function with respect to each of the independent variables.f(x,y)=xe^2y
June 7, 2011 by Chris

*math (7)
Evaluate the first partial derivatives of the function at the given point. f(x, y) = x^2 + xy + y^2 + 2x - y ; at (-5, 4) fx(-5, 4) = ? fy(-5, 4) = ?
April 29, 2014 by Mia

math (3)
Evaluate the first partial derivatives of the function at the given point.(0,e) f(x,y) = 6e^x ln(y) fx(0,e) = ? fy(0,e) = ?
April 30, 2014 by Mia

calculus
Integral of 10 / (5x^2 - 2x^3) Do not determine the numerical values of the coefficients. Just wanted to know why when I write out the form of the partial fraction decomposition there is A/x + B/x^3 + C/ (x^2 + 4) Why isn't it just A/x^3 + B/ (x^2 + 4)?
March 2, 2013 by Daniel

Math(Please help)
Evaluate: f(x,y)=2x^3e^y a) partial derivative with respect to x. I know that you have to treat y as a constant but I have no idea what to do. I do not understand partial derivatives at all. Please help!! b) partial derivative with repsect to y.
April 29, 2011 by Hannah

Chemistry
1.) What are the equilibrium partial pressures of CO and CO2 if co is the gas present initially, at a partial pressure of .912 atm. Kp = 19.9 Fe2O3 + 3CO <--> 2Fe + 3CO2 I'm trying to find partial pressure of both CO and CO2 by calculating for "x" in the equilibrium problem
May 8, 2012 by Ali

Math
By the method of the fractions partial determine the function f (t) of the following functions F (s). F(s)= s^2+7s+12/(s+2)(s+4)(s+6) F(s)= (s+3)(s+6)/s(s^2+10s+24) F(s)= 5(s+2)^2/s(s+1)^3 F(s)= s+6/s(s+1)^2 F(s)= 27/(s+1)^3(s+4)
March 4, 2012 by SILVA

CHEMISTRY
A mixture of Xe, Kr, and Ar has a total pressure of 6.7 atm. What is the mole fraction of Kr if the partial pressures of XE and Ar are 1.6 atm and 2.8 atm? Did anyone get .343 ?
May 12, 2012 by John

Math
-1/(x^3)-27 or -1=A(x^2+3x+9)+Bx+C(x-3) I'm trying to find the partial fraction decomposition. I think A=-1/21, but how do I find the right values to plug in for x to find B and C?
December 17, 2012 by Jamie

Maths: Partial Differentiation
1) If x = rcos theta and y = r sin theta, show that partial r / partial x = cos theta and find partial theta / partial x. 2) If z = sin theta.sin phi.sin gamma, and z is calculated for the values theta = 30degrees, phi = 45 degrees and gamma = 60degrees, find approximately the...
January 9, 2010 by Claire

math (7)
Find the second-order partial derivatives of the function. f(x,y) = x^5 + x^2y + x + 5 a. fxx = ? b. fyy = ? c. fxy = ? d. fyx = ?
April 30, 2014 by Mia

math (8)
Find the second-order partial derivatives of the function. f(x,y) = x^5 + x^2y^2 + y^4 + x + y a. fxx = ? b. fyy = ? c. fxy = ? d. fyx = ?
April 30, 2014 by Mia

CHM
A mixture of three gases exert a total pressure of 753 mm Hg.If Gas #1 has a partial pressure of 289 mm Hg and Gas #2 has a partial pressure of 122 mm Hg, what must the partial pressure be of gas #3?
July 6, 2013 by Anonymous

Chemistry
A 70.8mL sample of "wet" O2(g) is collected over water at 29.9 degrees Celsius at a barometric pressure of 743 mmHg. The vapour pressure of water at 29.9 degrees Celsius is 31 mmHg. What is the mole fraction of O2 in the gas collected? So i found the partial pressure of O2 to ...
October 16, 2010 by Jon

Chemistry
The partial pressure of water above a solution of water and a nonvolatile solute at 25oC is 18.6 mm Hg. What is the mole fraction of the solute?
October 27, 2008 by Jacqueline

chemistry
The mole fraction of nitrogen in air is 0.7808. calculate the partial pressure of N2 in air when the atmospheric pressure is 760 torr?
November 18, 2011 by NONO

Chem
What is the mole fraction of H2 in a mixture with the total pressure of 800 torr when the partial pressure of H2 is 90 torr?
June 29, 2011 by Chris

calculus
Just doing example questions to better understand. Find all first and second partial derivatives for the function u= xy^2+x^2y
April 23, 2012 by Todd

Algebra
If 3 is subtracted from the numerator of a fraction, the value of the fraction is 1/2. If 6 is added to the denominator of the ORIGINAL fraction, the value of the fraction is 1/2. What is the original fraction?
March 2, 2014 by Angela

Algebra
Is a function with a fraction (1/4) an even or an odd function? Or can fractions be neither even or odd? I have to declare one or the other, so I'm not sure what to say.
November 9, 2009 by Erin

pre calc
The Identity Function The Squaring Function The Cubing Function The Reciprocal Function The Square Root Function The Exponential Functional Lo The Natural Logarithum Function The Sine Function The Cosine Function The Absolute Value Function The Greatest Integer Function The ...
December 18, 2009 by kim

*re-Calc
I am trying to get the polynomial; x^7+2x^6+3x^5+4x^4+6x^3+6x^2+7x+8 divided by; x^5-2x^4-3x^3+5x^2+2x-3 into a partial fraction form so that I can create a system of equations to solve for. So far, after dividing I have (x+1)(x-1)^2, and (x^2-x-3) as factors along with an ...
May 29, 2009 by John

Chemistry
A 5.00L reaction vessel contains hydrogen at a partial pressure of 0.588atm and oxygen gas at a partial pressure of 0.302atm. The equation is 2H2(g)+O2(g)-> 2H2O(g). Suppose the gas mixture is ignited and the reaction produces the theoretical yield of the product. What ...
October 2, 2012 by Heather

Math
What is 0.835 as a percent and fraction What is 10% as a fraction and decimal What is 95% as a fraction and decimal What is 4% as a fraction and decimal What is 120% as a fraction and decimal What is 1.05 as a fraction and percent What is 1/6 as a decimal and percent What is 0...
November 21, 2013 by Emily 😊😊😊

pre-calc
I am trying to get the polynomial; x^7+2x^6+3x^5+4x^4+6x^3+6x^2+7x+8 divided by; x^5-2x^4-3x^3+5x^2+2x-3 into a partial fraction form so that I can create a system of equations to solve for. So far, after dividing I have (x+1)(x-1)^2, and (x^2-x-3) as factors along with an ...
May 29, 2009 by John

Math grade 12
write the partial fraction decomposition of the following rational expression ( hint: binomial expansion with Pascal triangle can be used to expand binomials. technology may be used to solve large systems using matrices or determinants) 4 ------------------------------------- ...
January 1, 2012 by Rass

Chemistry Help PLEASE!!
I don't know how to do this question, I understand we have to use ICE but I keep getting the wrong answer when I solve for x, it's just not working for me. Consider the following reaction: A(g) -> 2B (g) Find the equilibrium partial pressures of A and B for each of the ...
February 24, 2012 by Student

Partial derivative
Hello I trying to do a problem on partial derivative. I know the partial derivative of 3x+2y with respect to x would be 3 and with respect to y would be 2. But wut if it is squarroot of 3x+2y, wut is the partial derivative of it with respect to x and y
October 30, 2007 by Kim

Chemistry
A mixture of 0.47 mole of H2 and 3.59 moles of HCl is heated to 2800C. Calculate the equilibrium partial pressures of H2 Cl2 and HCl if the total pressure is 2.00 atm. For the reaction Kp is 193 at 2800C. H2(g) +Cl2(g) = 2HCl (g) What I've done so far: found the partial ...
December 19, 2010 by Jamal

trig
The number of a fraction is three more than twice the denominator. The fraction simplified is equal to 9/4 Find the fraction
March 16, 2011 by Cynthia

Math
The numerator of a simple fraction is 2 less than its denominator. The sum of this fraction and its reciprocal is 2 4/35. Find this fraction.
May 8, 2014 by Jenn

math
trying to find a fraction riddle. I'm a fraction greater than 1/2 and less than 3/4. My numerator is 5 times 1. what fraction am I? How do you explain the answer?
March 10, 2008 by katy

math
if we multiply a fraction by itself and divide the product by its reciprocal,the fraction thus obtained is 512/27.the original fraction is?
January 21, 2012 by shruti

chem
A 1L flask is filled with 1.25 g of argon at 25 degrees celcium. A sample of ethane vapor is added to the same flask until the total pressure is 1.45 atm. What is the partial pressure of argon in the flask? Chemistry - DrBob222, Tuesday, October 5, 2010 at 9:00pm mols Ar = 1....
October 24, 2013 by kris

math
Hi how would i go about solving this. It's fraction + fracion over fraction+fraction -4/5+3/5 __________ 1/3+1/5
September 6, 2007 by mark

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