Tuesday

September 16, 2014

September 16, 2014

Number of results: 4,763

**Chemistry**

Balance the redox equation by oxidation number method: Cr2O7 2- + Br- + H+ = Cr 3+ + Br + H2O Please help!
*February 24, 2012 by Sarah*

**Algebra**

I have two equations that I need to solve using the elimination method the system is x = y = 9 and 2x - y = -3
*February 28, 2012 by Kathy Candell*

**Maths**

Using a cramers and guassian elimination method solve this; a+2b+3c=600 2a+3b+c= 900 3a+b+2c=800
*March 6, 2012 by Omotimehin pelumi*

**Calculus**

Q. Find the minimum value of Q=x^2y subject to the constraint 2x^2+4xy=294. Its the derivative method.
*March 15, 2012 by help*

**Maths**

Solve:- 5ax+6by=28 , 3ax+4by=18 using cross multiplication method
*April 27, 2012 by Ashley*

**Economics**

In 1000 BC, the Chinese people used Cowry shells as a method of currency. Why is this significant?
*April 29, 2012 by Labz*

**child care management**

A teaching method that uses computers to help children learn is called ?
*May 12, 2012 by jennifer*

**psychology**

In aversive conditioning, therapists attempt to reduce undesirable behaviors using which method?
*June 18, 2012 by Anonymous*

**physics**

i want a simple laboratory method of determining a young modulus of a long thine wire
*August 21, 2012 by ahmad muhamad chul*

**Scientific method**

Are these people a worker in a farm? Which is the Independent and Dependent variable and Control group.
*August 31, 2012 by Nia*

**Algebra....HELP!!**

Use the elimination method to solve the system of equations a + 6b =4 a + 3b = -2 What is the solution in an ordered pair?
*September 9, 2012 by Theresa*

**chemistry **

How to balance simple oxidation-reduction reactions by the half-reaction method. Mg (s) + N2 (g)= Mg3N2 (s)
*September 30, 2012 by ron*

**Math**

Solve by using the subatitution method. (Please keep fractions as they are, don't convert to decimal.) 1. y= -3x - 1 2x - 3y= -8 2. 1 + 3y= 10 5x + 2y= 6 3. 2x - 6y= -2 x= 3y - 1 4. y= 1/7x + 3 x - 7y= -4
*October 3, 2012 by Neil*

**alegbra 1**

Solve the following systems of linear equations using algebraic method. 1)3y=11-2x 3x=y-11 2)8x-6y=14 12x-9y=18
*October 31, 2012 by Janet*

**math**

1)d/dx of cos4x/3-x^2(inculding quentient&chain rule) 2)sin^2x/1+cosx(same method)
*November 14, 2012 by ani*

**Math **

Find the value of each expression using the pemdas method. 5(to the second power)+8 divided by 2
*December 9, 2012 by Mary*

**maths --plse help me..**

solve the following equation by method of completing the perfect square:- 4x^2 + 4 √3 x +3=0
*December 13, 2012 by Anonymous*

**World history; HELP**

Help please? 6.Do you think that the Zhou Dynasty’s downfall resulted from its method of control? Why or why not?
*January 18, 2013 by Alfredo*

**pre algerbra**

Please solve the system with the elimination method. Explain each step as it is performed. 5y = x 2x - 3y = 7
*February 13, 2013 by Laura*

**MATH**

USE THE AC METHOD FACTORING 9+^2+5+-4 CAN SOME ONE SHOW ME THE STEP TO SOLVING THIS PROBLEM
*February 21, 2013 by mace*

**algebra**

Solve the following system of equation using the graphing method. Y = negative X Y = X + 9 Don't know what to do. Thank u if u can helpme.
*March 2, 2013 by Josie*

**Chemistry**

Describe an experimental method for the estimation of oxalate in the product, potassium trioxalatoaluminate(III)
*March 7, 2013 by ESPINE*

**math**

I have to add 1+2+3+4+5.....all the way to 1000. What method should I use to solve it?
*July 7, 2013 by Celest*

**College Algebra**

Solve system by method of elimination 0.07x + 0.02y =-0.07 0.08x - 0.06y = 0.07
*July 24, 2013 by Jack*

**Chemistry**

An aqueous solution is 1.33 molality in method determine the amount fraction of methenal and water
*August 10, 2013 by Aman*

**bio 11**

must the steps in the scientific method always be followed in the same order? Explain.
*September 4, 2013 by alyssa*

**Algebra**

Help I'm stuck I need to factor a trinomial expression using the AC method 15x^2 + 31x + 2
*November 1, 2013 by Tracy*

**chemistry**

what is another way you could determine the enthalpy of formation of magnesium oxide beside the experimental method?
*November 25, 2013 by Anonymous*

**reading romeo and juliet**

theme: revenge method: verbal irony only 3 examples
*May 31, 2014 by reina bonilla*

**chemistry**

Balance by oxidation method the SO2 + MnO4+H2O --MnSO4+H2SO4+SO4(-2)
*July 7, 2014 by alex*

**math **

solve using any appropriate method 0.05x+0.25y=99 0.15x+0.05y=108
*August 10, 2014 by Keya *

**statistical inference**

find an estimator for theta from gamma distribution using method od moment
*September 7, 2014 by saimi*

**Math**

What are different strategies of finding all the factors of a number besides the rainbow method?
*September 15, 2014 by Gina*

**calculus**

what is the answer for the integral of (1/(xln(x)) from 1 to infinity? I first found the integral using u substitution- so u=ln(x) and du=1/x*dx this gave my du/u,leading to the ln(u) =ln(ln(x)) from 1 to infinity then I did the limit as t approaches infinity of 1/(tln(t)) - ...
*February 6, 2008 by sarah*

**geometry**

If PQ=3 and PQ+RS=5, then 3+RS=5 is an example of the ___________. A. multiplication property of equality B. reflexive property of equality C. transitive property of equality D. substitution property of equality
*October 3, 2007 by bob*

**accounting**

How depreciation and amortization affect the income statement and the profitability of the company as well as its affect on the income taxes a company pays. Also the advantages of an accelerated method of depreciation and how that affects net income, the balance sheet,AS WELL ...
*September 24, 2008 by cathy h*

**organic chemistry **

a careless organic chemistry student was performing "competing nucleophiles in nucleophilic substitution reactions" experiment , and left his container of tert-butyl chloride and tert-butyl bromide open to the air for several hours. what happened to the composition of the ...
*October 22, 2012 by lyly*

**Chemistry**

In the experiment of Nucleophilic substitution reactions: Competing Nucleophiles 1)what would happen if all the solids in the nucleophile medium were not dissolved? How might this affect the outcome of the experiment? 2)Explain the order of elution you observed while ...
*February 16, 2010 by Jennifer*

**science**

Discuss the importance of each step in the scientific method. Why do you think scientists utilize this type of experimentation and reasoning? (Broken Link Removed) Discuss the importance of each step in the scientific method. Why do you think scientists utilize this type of ...
*March 5, 2007 by Trenet*

**chemistry**

write the equations for the substitution reaction of methene with bromine under the following conditions. a) reaction in the presence of sunlight CH4+Br2 sunlight=? b) reaction in the absence of sunlight CH4+Br2 =?
*November 22, 2011 by denis*

**Chemistry**

Propose a method for determining the specific heat for a metal like sodium that reacts with water?
*September 14, 2007 by Dick Rogers*

**science**

What is the order analytical method fundamental to ? I know two of them are taxonomy, biochemistry. I need to know the third one.
*September 15, 2007 by richard*

**Chemistry**

Propose a method for determining the specific heat for a metal like sodium, which reacts with water.
*October 15, 2007 by M*

**Chemistry**

Propose a method for determining the specific heat for a metal like sodium, which reacts with water.
*October 15, 2007 by M*

**chemistry**

how do I know the ion value of elements on the production side of the equation when balancing with the electron transfer method?
*November 14, 2007 by stephanie*

**College Calculus**

Write a trial solution for the method of indetermined coefficients: y''+9y' = xe^(-x)cos(pi*x) ....I have no idea.
*February 3, 2008 by Jayme*

**calculus**

You are using Newton's method to solve x^3-5x-2=0. If your first guess is X1=2, what value will you calculate for the next approximation X2?
*March 2, 2008 by Anonymous*

**health**

Dry heat is the best method of sterilizaion to disinfect medical instruments I said True
*April 22, 2008 by Anonymous*

**business communication**

Suggest options for presenting information audience. Which method do you think is the most effective?
*May 14, 2008 by Jaz*

**algebra/math**

use the FOIL method to perform the multiplication. (x^1/2-2)(x^1/2+4) I can not seem to find the answer to this problem. Can anyone help? Thank You!
*September 26, 2008 by Ashley*

**algebra/math**

use the FOIL method to perform the multiplication. (x^1/2-2)(x^1/2+4) I can not seem to find the answer to this problem. Can anyone help? Thank You!
*September 26, 2008 by Ashley*

**Financial Management**

In using the internal rate of return method, it is assumed that cash flows can be reinvested at
*December 1, 2008 by Anonymous*

**math**

what method do you use to solve a number line starting at 0 three blank integers and the fourth is 68?
*January 15, 2009 by Naomi-Eliana*

**science**

How do you seperate a mixture of iron and sulphur by means of a phsyical test without using a method
*February 11, 2009 by Jeanne*

**9th grade**

one method that the sumerians used to survive and overcome the limitations of their geographical enviroment was?
*February 27, 2009 by ricardo*

**5TH GRADE MATH**

HOW DO START A LESSON PLAN USING THE LATTICE METHOD AND HOW WOULD IT BE TEACHED?
*March 19, 2009 by JOSEFINA*

**algebra**

Find all real or imaginary solutions to equation. Use the method of your choice. w^2=-225
*July 20, 2009 by Jessica*

**Algebra**

Find all real or imaginary solutions to equation. Use the method of your choice. 3v^2+4u-1=0 reposting for help
*July 21, 2009 by Jessica*

**math**

using method of partial fractions to decompose this 1/(x-3)(x+3) is 1/6(x-3)-1/6(x+3) correct or have i gone wrong somewhere
*October 24, 2009 by mousey*

**Algebra**

What is the best method for Solving equations with variables on both sides? This is the problem: 1(6x-x)=162+12x
*November 1, 2009 by Britny*

**Algebra**

please help me!! Solve by elimination method: 3r - 5s = 6 5r + 3s = 44 I thought that I could do vertical addition,when I do, I get 8r - 2s = 50...........but none of the variables are eliminated.
*November 23, 2009 by ggift*

**worl history**

one method that the sumerans used to survive and overcome the limitations of their geographical environment was
*November 29, 2009 by agustin*

**Algebra**

Using the Gauss-Jordan method need to determine the coefficients a,b,c of the quadratic equation x=ax squared +bx+c y=5.4 and x=8
*December 13, 2009 by mike*

**math**

"Find a quick and easy method to compute the sum of the first 100 counting numbers."
*February 6, 2010 by Terri*

**chemistry**

State one method of preparing oxygen in the lab and wrte a balanced equation for the reaction
*March 11, 2010 by +2347034420247*

**Chemistry**

What is a reasonable discussion of the method for the preparation of a sample of lead iodide and hygrated copper sulphate?
*March 17, 2010 by Gillian*

**Chemistry**

Why is it important to use liquids with relatively lower boiling points when using the Dumas method?
*April 1, 2010 by Jen*

**Chemistry**

Why is it important to use liquids with relatively lower boiling points when using the Dumas method?
*April 1, 2010 by Help*

**math/algebra**

solve by additon method, tell whether the equation is dependent,independent, or consistent. 1. x-y=3 -6x=6y=17 2. 3/7=5/9=27 1/9 = 2/7 =7
*April 5, 2010 by ann*

**Math**

I do not understand how to decide which method would you use to determine whether this proportion is true or false? 19/6=4/27
*April 11, 2010 by Bart*

**adult education**

using the half angle method solve the triangle for whick the given parts are a=27 b=21 and c=24
*April 14, 2010 by sam*

**math**

I'm completely lost withhow u solve this quadratic equation using the square root method 6x^2=1
*April 18, 2010 by Jason*

**Math**

Please I need to solve this problem Use the elimination method 0.3x -0.2y=4 0.5x + 0.3y=1 Plesae help I am competely lost!!!
*July 20, 2010 by upbeat*

**chemistry II**

What are the steps to balancing Redox reactions using the Valence method. thanks> ex problem: NH3+O2 -->H2O +NO
*October 17, 2010 by Taylor*

**Statistic**

If we use the ÷2 method of analysis to test for the differences among 4 proportions, the degrees of freedom are equal to: A) 3 B) 4 C) 5 D) 1
*October 24, 2010 by Anonymous*

**math**

solve using the elimination method. If the system has no solution or infinite number of solutions a state this 4x-6y=30 3x-5y=24
*February 16, 2011 by nicholas*

**chemistry**

Ag+HNO3-----AgNO3+NO+H2O balance the redox reaction using the oxidation-number method
*February 20, 2011 by sally*

**chemistry**

describe an alternative method to prepare a 0.2M potassium phosphate buffer using KH2PO4 and KOH
*February 27, 2011 by kabelo*

**math**

Find the general solution using the method of undetermined coefficients. y''' - 10y'' + 25y' = e^(-x) cos x + e^(5x) + x.
*May 8, 2011 by Shane*

**Algebra **

Solve by elimination method. 5x+y=1 10x+12y=2 Please Help I can't seem to figure this one out.
*May 15, 2011 by Crisanta*

**Algebra**

Solve by elimination method. 5x+y=1 10x+12y=2 Please Help I can't seem to figure this one out.
*May 15, 2011 by Crisanta*

**physics**

how would you measure the resistance of an electrical device, such as a lamp, by the voltmeter-ammeter method?
*May 17, 2011 by kriti*

**physics**

why we cannot use visible light for studying the crystal structure using Bragg’s diffraction method?
*May 19, 2011 by diwakar*

**maths**

The method for completing the square can be used to write the expression -2x^2+12x-5 in the form a(x+b)^2 +c, where a,b, and c are constants. What is the value of c? Thank you for any help.
*May 20, 2011 by Trevor*

**mathematics**

by prime factorisation method find the least positive number divisible by 700 and 364
*May 21, 2011 by Anonymous*

**physical chemistry**

the aprroximate method to solve the shrodringer equation for hydrogen like atom? Please help, thank
*June 4, 2011 by bun*

**Physics**

How do you solve this using the component method? 56n, northwest + 38n, 75 degrees east of north
*August 27, 2011 by Sabbie*

**scientific method and measurement 8th Hons science**

what allows results to be verified to maintain credibility?
*September 12, 2011 by hannah *

**Scientific Method sort of relating to science**

What are Two Factors that can affect how fast water evaporates?
*December 13, 2011 by Samanth*

**Chemistry**

What method would you use to separate salt, sand , marble chips and iron nails?
*January 6, 2012 by Anonymous*

**greek philosophy and history**

How are Aristotle's teachings related to the scientific method used by scientists today?
*January 21, 2012 by im_a_h8r_n_luvin_it(only hate certain people)*

**math**

Discuss the relationship between the FOIL method for multiplying polynomials and the distributive property of multiplication.
*February 3, 2012 by Leo*

**Biology**

Why can this statement not be evaluated by the scientific method "Trees emit psychic screams when you cut them down."?
*February 15, 2012 by Anonymous*

**cal**

Use Euler's method with step size0.4 to estimatey(2) , where y(x) is the solution of the initial-value problem y'=4x+y^2, y(0)=1. . y(2)=
*March 12, 2012 by carlton*

**calculus 2**

Use euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem y'= -3x+y^2, y(0)=1
*March 13, 2012 by Geminese*

**calculus 2**

Use euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem y'= -3x+y^2, y(0)=1
*March 13, 2012 by Geminese*

**calculus**

Use Euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem. y' = 5x + y^2, y(0)=-1.
*March 14, 2012 by Carlton*

**CAL 2**

Use Euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem y'=5x+y^2, y(0)=-1 y(1)=
*March 15, 2012 by Josh*

**Cal**

Use Euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem. y' = 5x + y^2, y(0)=-1. y(1)=
*March 15, 2012 by McClain*

**Calculus- please help**

Q. Find the minimum value of Q=x^2y subject to the constraint 2x^2+4xy=294. Its the derivative method.
*March 15, 2012 by Samantha*

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