Thursday
August 25, 2016

Search: substitution method 7x+9y=39

Number of results: 5,689

OChem
Could someone explain these two reaction mechanisms (I know they are substitution): 1) 1-propanol reacted with H2SO4 and NaBr 2) 2-pentanol reacted with H2SO4 and NaBr does the carbocation rearrange for the second reaction? thanks for the help!
April 21, 2009 by bee

Organic Chemistry 2
Arrange these in the correct order of their reactivity during nucleophillic substitution by SN2 and SN1 conditions, Ch3-CH=CH-CH2-Cl, Ch3-CCl-Ch-Ch3, and Ch3-Ch2-Ch2-Ch2-Cl
June 9, 2010 by Anonymous

Accounting
Bus Acquired Cost Salvage Value Useful Life in Years 1 1/1/13 $98,100 8,000 5 (straight-line) 2 1/1/13 129,000 11,900 5 (decline balance) 3 1/1/14 79,780 8,200 4 (units-of-activity) For the declining-balance method, the company uses the double-declining rate. For the units-of-...
April 6, 2015 by Anonymous

Calculus I (PLEASE HELP!)
These two q's for my homework I am very confused on how to do: First Question: Using Newton’s method, approximate the value of √5 up to 2 decimal points starting with x1 = 3. 2nd Question: Thomas Malthus was an economist that predicted that the population grows ...
November 16, 2014 by Anonymous

java programming
Provide a class called Letter for authoring a simple letter. The letter class has three data fields, the name of the sender, the name of the recipient, a body of the letter. 1. Supply the class constructors (default , and overloaded ) 2. Supply a method. Public void addLine (...
January 20, 2011 by JJ

Math
Could you please show me how to do this? It says to use the elimination method. 2x-y+2z=-7 -x+2y-4z=5 x+4y-6z=-1
September 24, 2007 by Geno

Science/ L.A.
How many words can you get from the letters in Scientific method? examples: -tin -do -the
November 8, 2007 by jakhajgakl

Chemistry
how do you purify Biphenyl contaminated with Fluorene? what is the method and solvent?
November 12, 2007 by Sonam

SOCIAL STUDIES/ GOVERNMENT
WHICH OF THE FOLLOWIN IS A METHOD OF FORMAL AMENDMENT ???
February 24, 2008 by EDGAR

Alegbra
Solving for systems of equation using the elimiation method. 3x-2y=x-6 3(x+2y)=3
April 3, 2008 by G

algebra
System of equations, the addition method 3x-3y=6 3x+3y=0 Whats the answer?
May 21, 2008 by noelle

Algebra 2
how do I solve -15x-2y=-31 4x+6)=11 using linear combination method?
September 22, 2008 by raya

math
solve -15x-2y=-31 4x+6y= 11 using linear combination method?
September 22, 2008 by Anonymous

math
solve -15x - 2y = -31, 4x + 6y = 11 using Linear Combination Method?
September 22, 2008 by Anonymous

math
solve -15x - 2y = -31, 4x + 6y = 11 using Linear Combination Method?
September 22, 2008 by Anonymous

Calculus
washer method!? Find the volume of y=x^2+3, y=3, between [0,2] around y=3
December 16, 2008 by Andrew

algebra-need quick
solve the system by addition method 7x^2+y^2=49 7x^2-y^2=49
February 25, 2009 by adam

algebra- help needed fast
solve the system by addition method 7x^2+y^2=49 7x^2-y^2=49
February 26, 2009 by Anonymous-2

math
how do i do the missing factor method to find the quotient of 3/5 divided by 2/3
September 12, 2009 by Christy

Algebra
Can 2x^2+5x+10=0, be factored? If not, how do use, completing the square method for this equation? Thanks!
September 20, 2009 by Swtpllypb

Math
Find the GCF of the numbers 52 and 405. Show your method.
October 4, 2009 by Anonymous

Math
Use the common denominator method to solve 3/5 divided by 2/3
October 9, 2009 by Kara

science
What method is use to determine the location of protein synthesis?
November 21, 2009 by shirui

Math
using the elimination method ...does this problem have an answer?...if so how do you get it... 5r - 4s = -21 4r + 5s = 57
November 22, 2009 by Kimberly

Algebra
How do you solve this factoring problem by foil method: 25x2=16
November 28, 2009 by Kate

math
1) x+8y=33 -x+4y=3 I need help solving this one using the elimination method!
March 13, 2010 by Kristin

Math
solve by addition method: please show work. -3x + y = 3 2x -3y =7
March 14, 2010 by HELEN

accounting
How is the receipt of a dividend recorded under the equity method?
March 28, 2010 by Karla

math
If I use the method of completing the square on 3w^2-4w+1=0 How would I solve??
April 20, 2010 by I need some explaining

Accounting2
Were to switch inventory method under GAAP? Why or Why Not? If they are how to go about doing it?
May 16, 2010 by Lynda

pre calc
solve following using "elimination method" 3x^2 + 4y = 17 2x^2 + 5y = 12
May 19, 2010 by Keith

math
factor by the method of using trial factors....2t squared + 4t - 30
June 11, 2010 by Lynda Smith

math 116
solve by the elimination method. 7r-3s=53 3r+7s=31 What is the solution of the system?
August 15, 2010 by Tanya

algebra
Factorise 4x^2-7x+3= and 6x^2+10x-5= Thanks Method would be good-as I am stuck.
November 2, 2010 by George

AP Chemistry
What is the Dumas Method in regards to the molas mass of a gas?
November 4, 2010 by D

chemistry
Could we use HCl instead in HNO3 in Volhard method?
November 5, 2010 by darika

Math
Use the echelon method to solve the following system. x/5+3y =31 2x-y/5=8
November 24, 2010 by Star

Math
Use the Gauss-Jordan method to solve the equation: 3x-5y-2z=-9 -4x+3y+z=11 8x-5y+4z=6
November 24, 2010 by Andrew

Math
Use the echelon method to solve the following system: x/5+3y=31 2x-y/5=8
December 2, 2010 by Ashley

algebra
Solve by the linear combination method (with or without multiplication). 6x \-2y = 2 3x + 4y =-5
December 16, 2010 by geddy

algebra
Solve by the linear combination method (with or without multiplication). 4x-5y =-18 3x + 2y =-2
December 16, 2010 by geddy

algebra
Solve by the linear combination method (with or without multiplication). 3x-5y = 7 2x + 3y = 30
December 16, 2010 by geddy

algebra
how do u solve an equation using the the graphing method...for example x-y=2 and -2x=2y=2
January 30, 2011 by help please..thanks :)

algebra
addition method:3x-5y=-2 and 5y-2x=-2 how would I solve it since they are not together?
February 21, 2011 by m

Maths
determine if this is a function? y= x show working method please
March 23, 2011 by Mathsnewbie

math(algebra)
solve by elimination method. 5x+6y=3 10x+12y=6
July 9, 2011 by jon

BIO
how is the scientific method used to create hypotheses or an expermient?
July 26, 2011 by Anonymous

algebra
how do I use the emlination method to slove the system of equation 5r + 3t = -1?
August 24, 2011 by Sarita

Algebra
can you solve this set of equations using the elimination method? 3x+4y=34 and 3x+2y=26
September 2, 2011 by Shirley

Math algebra
how do you do this by using the FOIL method? 1. 3x^2 + 22x + 7= 2. 2x^2 + 5x - 12= 3. x^2 - 11x + 28= thank you!
October 26, 2011 by Sara

algebra
Cramer's rule I understand the method but idk how to do this question 6x+2y=-44 -7+9Y=-96
November 15, 2011 by Bob Brown

General Psychology
what is the advantages and disadvantages of using the archival method?
January 17, 2012 by Kim

algebra
solve by using the square root method: (5y+4)^2+100=0
March 4, 2012 by H

calculus
Use Newtons method to find the roots of the equation 1/x=1+x^3
April 4, 2012 by Drew

intermediate algebra
Factor completely.Using the AC method....6x^3-4x^2-10x
April 22, 2012 by Lueshelle

math
Solve using elimination method -7x+5y=-56;-21x-2y=-168
May 1, 2012 by karly

algebra 1
Solve by the linear combination method (with or without multiplication). 6x – 2y = 2 –3x + 4y = 5
May 7, 2012 by Anonymous

Algebra
Use the elimination method to solve the sysrem of equations a+6b=13 a+3b=4
May 26, 2012 by Anonymous

PHYSIC
Which of the following objects was the first to be discovered by photographic method
July 29, 2012 by sONY

Algebra 2
x+2y+5z=-1 2x-y+z=z 3x+4y-4z=14 solve the system using linear combination method.
October 14, 2012 by Erin

Math
How to differentiate e^e^x? Ans at wolfram is e^(x+e^x). I need the calculation method.
October 28, 2012 by Ifi

maths
Find the derivative of 2x+3/ 3x-2 using first principle method.
January 29, 2013 by Anonymous

differential equation urgent !
using method of undetermined coefficients d^2y/dx^2 -5 dy/dx+6y=xe^x
February 26, 2013 by deq

calculus
Integrate using the simplest method possible: ∫(t – 1)5(2t – 7)dt
March 11, 2013 by susan/math

Calculus
Use Newton’s method to approximate the root of x^2 + 4x + 2 = 0 between x = -4 and x = -3 .
May 3, 2013 by Grant

algebra
how do you Solve the following system using the elimination method: 2x - 4y = 2 -4x + 6y = -4
July 4, 2013 by terrie

Math
solve the elimination method 8a+2b=2 -8a+b=13 determined the solution of the system
July 24, 2013 by Denise

Math
Use the elimination method to solve the system of equations 5u+2v=15 3u+v=-7
July 25, 2013 by Denise

introduction to psychology 1
Random assignment can be described as a research method:
August 17, 2013 by Anonymous

introduction to psychology 1
Random assignment can be described as a research method:
August 17, 2013 by Anonymous

geometry
what is a concave polygon using the classify and differentiate method
September 26, 2013 by sarah

Math
Solve each system using the method of your choice. 1. 7x+2y=17 2. 6x-5y=-9 3. y=4x-8 4. y=2x+10 5. 3x-6y=30 6. y=-6x+34 7. 3x+y=5 8. 15x+5y=2 9. 2m=-4n-4 10. 3m+5n=-3 11. 5x+y=0 12. 5x+2y=30 Thank you. (:
February 11, 2014 by Melanie

Algebra
Using the ac method factor the trimonials. 15x^2 + 31x+2=
April 30, 2014 by Michele

Algebra
Using the ac method factor the trimonials. 15x^2 + 31x+2=
April 30, 2014 by Michele

general physics
what are the differences between polygon and parallelogram method?
June 20, 2014 by krissy

MATH
Use the matrix method to solve the system of equations 2x + 4y = 8 and 6x + 3y = -3.
November 5, 2014 by lOVEJOY

Algebra 1
When solving a system of equations, how do you determine which method to use?
December 18, 2014 by Steve

algebra
solve the set of linear equations by the matrices method: a+3b+2c=3, 2a-b-3c=-8,5a+2b+c=9
April 7, 2015 by linear

chemistry
Can methane and oxygen be separated. If yes, can anyone please mention the method
May 11, 2015 by daniel

intro to psychology
Random assignment can be described as a research method:
June 19, 2015 by elly

math
solve by completing square method 16x^2-24x-13=0
June 28, 2015 by simran

natural science
usingbisection method and fp,evaluat the solution set of x3-4x-9
November 3, 2015 by ayele

5th math
What is the one der bread method of factoring? 4
December 2, 2015 by Dakota

Math
Solve the sytem of equations using the addition method. 5x+2y=1, x-3y=7
January 28, 2016 by Greg

algebra
solve by elimination method to find an ordered pair. 7x-y=27 x+9y=77
March 13, 2016 by leigh

accounting
how to calculate depreciation using carrying value method?
April 23, 2016 by Jeylen

chemistry
How to solve CoCl2+HO2- ------> Co(OH)3+ Cl- by half reaction method
July 28, 2016 by Pratik Rathi

math
(n-2)*180 =108n 180 n - 108 n = 360 72 n = 360 n = 5 drwls, I had totally misread the problem and thought it said (n-2)^180 =108n been working on it for almost an hour, trying Newton's method and all kinds of iteration. I really have to try to read the questions more carefully...
March 21, 2007 by chris verwer

Calc easy
Having trouble getting the correct solution. The integral of “x squared” in the numerator and “x squared plus x minus 6” in the denominator. S X2 / (X2 + x – 6) dx Thanks! That's a messy one. According to my table of integrals. The answer is -x/6 -(1/72)loge(x^2 +x -6) + S dx...
February 23, 2007 by Ang

alberaic method!
how do I convert 0.12... to a fraction using algebraic method? Isn't 0.12 twelve hundreths? 12/100 = 6/50 and it can be reduced further. I'm not sure what is meant by "algebraic method" here, but .12 is the same as 12/100 Generally, if you have a decimal like .xy...z then ...
October 19, 2006 by allana

Differential Equations by SUbstitution
Okay, so I'm given this ODE: (3xy-2y^2)dx - 7xydy = 0 I chose y = ux, so dy = udx + xdu So subbing in for y I get: (3(x^2)u - 2(x^2)(u^2))dx - 7(x^2)u(udx + xdu) = 0 3(x^2)udx - 3(x^2)(u^2)dx - 7(x^2)(u^2)dx - 7(x^3)udu = 0 3(x^2)udx - 9(x^2)(u^2)dx - 7(x^3)udu = 0 I do not ...
December 14, 2009 by Bobby

math
Lena bought a total of 20 postcards. She bought 6 more large poscards than small. Write a system of equations that represents the postcards Lena purchased. Solve the system by substitution. Interpret the solution.
November 26, 2012 by Jane

Math- urgent
Solving Systems by Substitution Maribel has $1.25 in her pocket. The money is in quarters and dimes. There are a total of 8 coins. How many quarters and dimes does Maribel have in her pocket? I think the equation is 10x+25x=$1.25 and x+x=8 but I'm not sure.
August 27, 2014 by sara

Education Tech
1.) Which of the following is the best strategy for studying test? a) Sitting alone in a chair in a quiet room, looking over your textbook. b) Working in pairs and exchanging practice questions. c) Developing a personal method that is right for you and your learning style. d) ...
January 9, 2014 by Ashley mccgarvey

Economics
In a place rice growers burn their field to stabilize their fields the field burning causes pollution, the alternative sanitizing method costs $150 per acre. Consider a country where rice farmers are willing to pay $500 per acre for land and corn farmers (who do not sanitize ...
May 5, 2009 by eStone

physics help please
a horizontal force of 8.0 newtons is used to pull a 20.-newton wooden box moving toward the right along a horizantal, wood surface, as shown. A. Determine the mass of the box. B. calculate the magnitude of the acceleration of the box.[Show all work, including the equation and ...
November 28, 2010 by mike

Math integral
What is the integral of 1/(x√(x^2-4)) dx? So I know that I am going to have to factor out the 4 and use the arcsec trig identity but I've having trouble getting to a viable u-substitution. I've gotten to factoring like this so far: √(x^2-4) = √[2^2(x^2/2^2 - ...
September 3, 2008 by Terry

algb
Z the Intergalactic Candy Store for $1.75. Jeejuu paid $1.88 and got 4 xylobars and 1 yackity. How much Dado pay for 1 xylobar and 2 yackities?imak bought 3 xylobars and 5 yackities from .....Write a system of equations. Then solve the equations using the methods: substitution...
October 1, 2014 by Amber

Macroeconomics
Assume that preferencse are given by u(c,L) = 2*ln(c) +ln(L). The wage rate is $15 and the person has 120 hours of time available. Profits are 0. Taxes are 0. Write down two equations that describe the constraints faced by this consumer. Find an equation for the Marginal Rate ...
May 24, 2008 by Kayla

Algebra 2
The projected population in thousands for a city over the next several years can be estimated by the function P(x)= x^3 + 2x^2 - 8x + 520, where x is the number of years since 2005. Use synthetic substitution to estimate the population. Also could anyone help me with the ...
February 6, 2014 by Alexus

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