Thursday

August 25, 2016
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*