What is the chemical equations for the different forms of coal ?
Q. Hi im doing an assignment and i need to know the chemical equations for the different forms of coal, and the balanced equations when they have been burnt. So i need to know the equations for Peat, Lignite, Sub-Bituminous coal and Bituminous coal.
Asked by robertbeare - Sun Oct 19 08:53:05 2008 - - 1 Answers - 0 Comments
A. Peat, lignite, sub-bituminous and bituminous are the different forms of coals. These have different percentage of carbon contents. Components other than carbon are present in different amounts. Exact chemical composition of these varieties is also uncertain. All these are not pure single chemical so a chemical formula can not be assigned. These represent complex mixtures of compounds having uncertain composition. Their age (since these started forming in nature) is also different. There cannot be a precise balanced equation for the process of burning. At best it can be represented as Coal + air (oxygen) ---> CO2 + CO + C + ash +...+ ...
Answered by trikha - Sun Oct 19 09:21:08 2008
Q. Hi im doing an assignment and i need to know the chemical equations for the different forms of coal, and the balanced equations when they have been burnt. So i need to know the equations for Peat, Lignite, Sub-Bituminous coal and Bituminous coal.
Asked by robertbeare - Sun Oct 19 08:53:05 2008 - - 1 Answers - 0 Comments
A. Peat, lignite, sub-bituminous and bituminous are the different forms of coals. These have different percentage of carbon contents. Components other than carbon are present in different amounts. Exact chemical composition of these varieties is also uncertain. All these are not pure single chemical so a chemical formula can not be assigned. These represent complex mixtures of compounds having uncertain composition. Their age (since these started forming in nature) is also different. There cannot be a precise balanced equation for the process of burning. At best it can be represented as Coal + air (oxygen) ---> CO2 + CO + C + ash +...+ ...
Answered by trikha - Sun Oct 19 09:21:08 2008
What parametric equations will make a holiday picture on a graphing calculator?
Q. I need to use parametric equations on my graphing calculator to produce a holiday picture for a math project. I need to use at least two conics. Please help. Give the equations and what it will make.Thanks.
Asked by ramsfan81 - Sat Dec 6 20:44:49 2008 - - 1 Answers - 0 Comments
A. Ah man, it's staring you in the face. Make a star of David. Two cones that share the same axis but one grows positive and the other grows neg. Then split it with a plane for your conics (or look at it normal to a plane) That should get you going w/o the need for me to explicitly give you the equations. Obviously you'll have a 60 included angle in the point of your cone and they'll intersect.
Answered by Dan - Sat Dec 13 10:36:41 2008
Q. I need to use parametric equations on my graphing calculator to produce a holiday picture for a math project. I need to use at least two conics. Please help. Give the equations and what it will make.Thanks.
Asked by ramsfan81 - Sat Dec 6 20:44:49 2008 - - 1 Answers - 0 Comments
A. Ah man, it's staring you in the face. Make a star of David. Two cones that share the same axis but one grows positive and the other grows neg. Then split it with a plane for your conics (or look at it normal to a plane) That should get you going w/o the need for me to explicitly give you the equations. Obviously you'll have a 60 included angle in the point of your cone and they'll intersect.
Answered by Dan - Sat Dec 13 10:36:41 2008
What laws, equations and physical principles is the field of optics based on. If you can, be as thorough as po?
Q. What laws, equations and physical principles is the field of optics based on. If you can, be as thorough as possible in your answer as I am trying to gain a firm understanding of this subject.
Asked by Q-bert - Tue Oct 21 20:22:51 2008 - - 1 Answers - 0 Comments
A. Optics - is the branch of physics dealing with light. More specificially visible light. Optics is further divided into 2 sub-sections: Geometrical Optics, and Physical Optics. Geometrical Optics is all about how light reflect or bends due to Mirrors Lenses and Prisms. How light travels in a straight line, until it changes media (with different refractive index) The equations are: i = r and n1sini = n2sinr <---Snell's law n1= refractive index of media 1 (from) n2 = refractive index of media 2 (to) i = angle of incidence r = angle of reflection/refraction. (all angles are measured from the beam to the NORMAL to the surface). Physical Optics - deals with the way light 'bends' around edges or corners. It deals more with the wave… [cont.]
Answered by U V - Tue Oct 21 20:50:16 2008
Q. What laws, equations and physical principles is the field of optics based on. If you can, be as thorough as possible in your answer as I am trying to gain a firm understanding of this subject.
Asked by Q-bert - Tue Oct 21 20:22:51 2008 - - 1 Answers - 0 Comments
A. Optics - is the branch of physics dealing with light. More specificially visible light. Optics is further divided into 2 sub-sections: Geometrical Optics, and Physical Optics. Geometrical Optics is all about how light reflect or bends due to Mirrors Lenses and Prisms. How light travels in a straight line, until it changes media (with different refractive index) The equations are: i = r and n1sini = n2sinr <---Snell's law n1= refractive index of media 1 (from) n2 = refractive index of media 2 (to) i = angle of incidence r = angle of reflection/refraction. (all angles are measured from the beam to the NORMAL to the surface). Physical Optics - deals with the way light 'bends' around edges or corners. It deals more with the wave… [cont.]
Answered by U V - Tue Oct 21 20:50:16 2008
What are the chemical equations for the following acids and bases?
Q. Write chemical equations for the reactions between sodium hydroxide and the acids 1. Hydrochloric acid (HCl) 2.Acetic Acid ( CH3COOH) 3. Phenol ( C6H5OH) likewise write chemical equations for the reactions between NITRIC acid and bases: 1.Sodium hydroxide (NaOH) 2.Ammonia (NH3) It would be much appreciated!
Asked by Sukhy - Sun Oct 18 12:05:15 2009 - - 1 Answers - 0 Comments
A. NaOH + HCl = NaCl + H2O CH3COOH + NaOH = CH3COONa + H2O NaOH + C6H5OH = sodium phenoxide + H2O HNO3 + NaOH = NaNO3 + H2O NH3 in solution produces the base NH4OH HNO3 + NH4OH = NH4NO3 + H2O
Answered by Ak - Sun Oct 18 12:26:04 2009
Q. Write chemical equations for the reactions between sodium hydroxide and the acids 1. Hydrochloric acid (HCl) 2.Acetic Acid ( CH3COOH) 3. Phenol ( C6H5OH) likewise write chemical equations for the reactions between NITRIC acid and bases: 1.Sodium hydroxide (NaOH) 2.Ammonia (NH3) It would be much appreciated!
Asked by Sukhy - Sun Oct 18 12:05:15 2009 - - 1 Answers - 0 Comments
A. NaOH + HCl = NaCl + H2O CH3COOH + NaOH = CH3COONa + H2O NaOH + C6H5OH = sodium phenoxide + H2O HNO3 + NaOH = NaNO3 + H2O NH3 in solution produces the base NH4OH HNO3 + NH4OH = NH4NO3 + H2O
Answered by Ak - Sun Oct 18 12:26:04 2009
How do you find the fractional difference between equations?
Q. I am trying to find the fractional difference between two equations. For some reason I can't figure out exactly what that means. Is it just the difference between the equations divided by one or the other of the equations?
Asked by Keai - Sun Nov 8 16:19:12 2009 - - 2 Answers - 0 Comments
A. not agree with that
Answered by unknown - Sun Nov 8 18:04:49 2009
Q. I am trying to find the fractional difference between two equations. For some reason I can't figure out exactly what that means. Is it just the difference between the equations divided by one or the other of the equations?
Asked by Keai - Sun Nov 8 16:19:12 2009 - - 2 Answers - 0 Comments
A. not agree with that
Answered by unknown - Sun Nov 8 18:04:49 2009
What are the equations for hyperbolas, horizontal and vertical, with the center not at the origin?
Q. I need to know the equations for both the horizontal and the vertical. please help!
Asked by liz - Wed Mar 18 18:51:35 2009 - - 1 Answers - 0 Comments
A. the equations for the hyperbolas are (x-h) /a - (y-k) /b = 1 and (y-k) /a -(x-h) /b =1 the center of the hyperbolas is in (h,k)
Answered by Ramon - Wed Mar 18 18:59:19 2009
Q. I need to know the equations for both the horizontal and the vertical. please help!
Asked by liz - Wed Mar 18 18:51:35 2009 - - 1 Answers - 0 Comments
A. the equations for the hyperbolas are (x-h) /a - (y-k) /b = 1 and (y-k) /a -(x-h) /b =1 the center of the hyperbolas is in (h,k)
Answered by Ramon - Wed Mar 18 18:59:19 2009
What similarities and differences are there between functions and linear equations ?
Q. What similarities and differences are there between functions and linear equations? Are all linear equations functions? Is there an instance in which a linear equation is not a function?
Asked by LowFuss - Mon Feb 16 21:21:47 2009 - - 2 Answers - 0 Comments
A. All linear equations are function. not all functions are linear equations.
Answered by Billy J - Mon Feb 16 21:28:18 2009
Q. What similarities and differences are there between functions and linear equations? Are all linear equations functions? Is there an instance in which a linear equation is not a function?
Asked by LowFuss - Mon Feb 16 21:21:47 2009 - - 2 Answers - 0 Comments
A. All linear equations are function. not all functions are linear equations.
Answered by Billy J - Mon Feb 16 21:28:18 2009
What are the chemical equations to make methamphetamine?
Q. I'm doing a paper on methamphetamine. I've found lots of material but not the actual chemical equations of what is being reduced, what are the products and reactants at each step, etc. I'm not interested in the actual making of it, just the chemistry behind it. Why is heet needed for example?
Asked by Bio-Challenged - Wed May 28 20:51:47 2008 - - 1 Answers - 0 Comments
A. Are you sure you don't mean Mentally Challenged or Ethically Challenged? While you may truly be interested in only an academic sense, posting that information might well encourage others to "give it a try".
Answered by Helmut - Sun Jun 1 19:14:35 2008
Q. I'm doing a paper on methamphetamine. I've found lots of material but not the actual chemical equations of what is being reduced, what are the products and reactants at each step, etc. I'm not interested in the actual making of it, just the chemistry behind it. Why is heet needed for example?
Asked by Bio-Challenged - Wed May 28 20:51:47 2008 - - 1 Answers - 0 Comments
A. Are you sure you don't mean Mentally Challenged or Ethically Challenged? While you may truly be interested in only an academic sense, posting that information might well encourage others to "give it a try".
Answered by Helmut - Sun Jun 1 19:14:35 2008
How do you balance chemical equations with polynomials?
Q. I am scared for my life cause im taking a honors chemistry test this monday and I don't know how to balance chemical equations with polynomials. I should have paid attention to the teacher. T_T Please help me someone.
Asked by Melissa R - Sat Dec 1 05:26:49 2007 - - 1 Answers - 0 Comments
A. Its pretty simple, but can be tricky at first. You just have to balance the number of atoms on both sides of the equation ...Reactants ---> Products. For example. H + OH ---> H20. This is very simple example... but see tehre's 2 H's on the reactant hand side and 2 H's on the product side. Same with Oxygen. This equation is balanced. Now lets say it doesnt match up..im making this one up btw. Li + Al ---> LiAl4 The reactants only has 1 Al ...and the right has 4 Al's, so to balance you need to put: Li + 4Al ---> LiAl4 ..balanced. I'm gonan extend it.. now lets say you have something like this.. Fe^2+ + O^-2 ---> Fe2O2 basically you cross the exponential charges to get the final product.. however, you can simplify it to… [cont.]
Answered by Little Foot - Sat Dec 1 05:33:33 2007
Q. I am scared for my life cause im taking a honors chemistry test this monday and I don't know how to balance chemical equations with polynomials. I should have paid attention to the teacher. T_T Please help me someone.
Asked by Melissa R - Sat Dec 1 05:26:49 2007 - - 1 Answers - 0 Comments
A. Its pretty simple, but can be tricky at first. You just have to balance the number of atoms on both sides of the equation ...Reactants ---> Products. For example. H + OH ---> H20. This is very simple example... but see tehre's 2 H's on the reactant hand side and 2 H's on the product side. Same with Oxygen. This equation is balanced. Now lets say it doesnt match up..im making this one up btw. Li + Al ---> LiAl4 The reactants only has 1 Al ...and the right has 4 Al's, so to balance you need to put: Li + 4Al ---> LiAl4 ..balanced. I'm gonan extend it.. now lets say you have something like this.. Fe^2+ + O^-2 ---> Fe2O2 basically you cross the exponential charges to get the final product.. however, you can simplify it to… [cont.]
Answered by Little Foot - Sat Dec 1 05:33:33 2007
How do the diophantine equations relate to real-life situations?
Q. We are doing a math project on one of the diophantine equations (x^2 - y^2 = 1) and to better understand it we would like to know specifically how these equations (or our equation) would relate to our real-lifes. Thank you. It would help us if you could provide a scenario along with how it is used.
Asked by Nellie - Sat May 10 14:24:39 2008 - - 1 Answers - 0 Comments
A. Forgive me, but this is a far-fetched question. It doesn't realte much to life per se, but it does relate a lot to mathematics. This is one of Pell's equations, but I think you need to leave the integer n in it, x^2 - n y^2 = 1, where n is nonsquare. If n = 1, then there is only one solution, x = 1, y = 0, which is not particularly interesting or useful. If n is included, then this becomes a useful way to approximate a square root by a rational number.
Answered by Rick - Sat May 10 14:57:25 2008
Q. We are doing a math project on one of the diophantine equations (x^2 - y^2 = 1) and to better understand it we would like to know specifically how these equations (or our equation) would relate to our real-lifes. Thank you. It would help us if you could provide a scenario along with how it is used.
Asked by Nellie - Sat May 10 14:24:39 2008 - - 1 Answers - 0 Comments
A. Forgive me, but this is a far-fetched question. It doesn't realte much to life per se, but it does relate a lot to mathematics. This is one of Pell's equations, but I think you need to leave the integer n in it, x^2 - n y^2 = 1, where n is nonsquare. If n = 1, then there is only one solution, x = 1, y = 0, which is not particularly interesting or useful. If n is included, then this becomes a useful way to approximate a square root by a rational number.
Answered by Rick - Sat May 10 14:57:25 2008
What is the difference between mathematical models and math equations that describe physical phenomena ?
Q. Are mathematical models describing physical phenomena, the same thing as mathematical equations describing physical phenomena. Are the terms model and equation just different names for the same thing or do they describe different things.
Asked by ABC X - Sun Jun 24 09:46:02 2007 - - 3 Answers - 0 Comments
A. More or less the same thing. A model is a series of equations that describes the behavior of a physical object in response to real world forces. I believe that the term "model" is used because the equations used are assumed to be a simplification that only includes effects that are assumed to be significant. Sometimes trivial forces are not so trivial after all, and a bridge collapses because the equation was not precise enough. --- A mathematical model is an abstract model that uses mathematical language to describe the behavior of a system. Mathematical models are used particularly in the natural sciences and engineering disciplines (such as physics, biology, and electrical engineering) but also in the social sciences (such as… [cont.]
Answered by Randy G - Sun Jun 24 09:56:04 2007
Q. Are mathematical models describing physical phenomena, the same thing as mathematical equations describing physical phenomena. Are the terms model and equation just different names for the same thing or do they describe different things.
Asked by ABC X - Sun Jun 24 09:46:02 2007 - - 3 Answers - 0 Comments
A. More or less the same thing. A model is a series of equations that describes the behavior of a physical object in response to real world forces. I believe that the term "model" is used because the equations used are assumed to be a simplification that only includes effects that are assumed to be significant. Sometimes trivial forces are not so trivial after all, and a bridge collapses because the equation was not precise enough. --- A mathematical model is an abstract model that uses mathematical language to describe the behavior of a system. Mathematical models are used particularly in the natural sciences and engineering disciplines (such as physics, biology, and electrical engineering) but also in the social sciences (such as… [cont.]
Answered by Randy G - Sun Jun 24 09:56:04 2007
How do you determine which kinematic equations to use?
Q. As stated in the topic... How do you figure out which kinematic equations to use for the question you are being asked? What do the symbols in each equation for kinematics stand for?
Asked by Brian - Sat Oct 6 19:40:58 2007 - - 3 Answers - 0 Comments
A. It depends on the data you have. Time,displacement, velocity, ... First list all of them and then see what so you can use. That is the easiest way.
Answered by boy101 - Sat Oct 6 19:51:55 2007
Q. As stated in the topic... How do you figure out which kinematic equations to use for the question you are being asked? What do the symbols in each equation for kinematics stand for?
Asked by Brian - Sat Oct 6 19:40:58 2007 - - 3 Answers - 0 Comments
A. It depends on the data you have. Time,displacement, velocity, ... First list all of them and then see what so you can use. That is the easiest way.
Answered by boy101 - Sat Oct 6 19:51:55 2007
How do you write an equation for a circle as the union of two equations?
Q. I am given the equation x^2+y^2-3x+5y-11=0. How do I write the two equations for the top and bottom halves of the circle?
Asked by Laura S - Tue Oct 28 18:38:02 2008 - - 3 Answers - 0 Comments
A. x^2 + y^2 - 3x + 5y - 11 = 0 Combine the x and y terms, and complete the squares: (x^2 - 3x) + (y^2 + 5y) - 11 = 0 (x^2 - 3x + 9/4) + (y^2 + 5y + 25/4) - 11 - 9/4 - 25/4 = 0 (x - 3/2)^2 + (y + 5/2)^2 - 39/2 = 0 (x - 3/2)^2 + (y + 5/2)^2 = 39/2 (This is the equation of both halves of the circle. To break this into two equations, solve for y: (y + 5/2)^2 = 39/2 - (x - 3/2)^2 (y + 5/2) = +/- sqrt(39/2 - (x - 3/2)^2) y = -5/2 +/- sqrt(39/2 - (x - 3/2)^2) The two equations would be: y = -5/2 + sqrt(39/2 - (x - 3/2)^2) y = -5/2 - sqrt(39/2 - (x - 3/2)^2)
Answered by Math Wiz - Tue Oct 28 18:52:46 2008
Q. I am given the equation x^2+y^2-3x+5y-11=0. How do I write the two equations for the top and bottom halves of the circle?
Asked by Laura S - Tue Oct 28 18:38:02 2008 - - 3 Answers - 0 Comments
A. x^2 + y^2 - 3x + 5y - 11 = 0 Combine the x and y terms, and complete the squares: (x^2 - 3x) + (y^2 + 5y) - 11 = 0 (x^2 - 3x + 9/4) + (y^2 + 5y + 25/4) - 11 - 9/4 - 25/4 = 0 (x - 3/2)^2 + (y + 5/2)^2 - 39/2 = 0 (x - 3/2)^2 + (y + 5/2)^2 = 39/2 (This is the equation of both halves of the circle. To break this into two equations, solve for y: (y + 5/2)^2 = 39/2 - (x - 3/2)^2 (y + 5/2) = +/- sqrt(39/2 - (x - 3/2)^2) y = -5/2 +/- sqrt(39/2 - (x - 3/2)^2) The two equations would be: y = -5/2 + sqrt(39/2 - (x - 3/2)^2) y = -5/2 - sqrt(39/2 - (x - 3/2)^2)
Answered by Math Wiz - Tue Oct 28 18:52:46 2008
Where can I find the equations of general relativity and Schrodinger's equation?
Q. I want a detailed description of the equations of general relativity and Schrodinger's equation.How can I find that?
Asked by meno25 - Tue Aug 8 09:59:58 2006 - - 4 Answers - 0 Comments
A. Get a text book. "Modern Physics" by Serway was pretty good. The equation of general relativity is fairly simple to begin with thou: E = Em +Ek, where E is the total energy, Em is the rest mass/energy and Ek is the realivistic kinetic energy function, which has characters I do not have on this keyboard. Shrodingers equation requires a bit more explaination... it is an equation with an infinite number of solutions, and an infinite number of wrong answers... kinda annoying. The answers are all probability functions, and a good background in linier algebra and multi-variable calculus is necessary to understand it at all. The significance of the equation, however, can be summed up fairly nicely. While in classical mechanics, the idea was to… [cont.]
Answered by Roger N - Wed Aug 9 23:52:14 2006
Q. I want a detailed description of the equations of general relativity and Schrodinger's equation.How can I find that?
Asked by meno25 - Tue Aug 8 09:59:58 2006 - - 4 Answers - 0 Comments
A. Get a text book. "Modern Physics" by Serway was pretty good. The equation of general relativity is fairly simple to begin with thou: E = Em +Ek, where E is the total energy, Em is the rest mass/energy and Ek is the realivistic kinetic energy function, which has characters I do not have on this keyboard. Shrodingers equation requires a bit more explaination... it is an equation with an infinite number of solutions, and an infinite number of wrong answers... kinda annoying. The answers are all probability functions, and a good background in linier algebra and multi-variable calculus is necessary to understand it at all. The significance of the equation, however, can be summed up fairly nicely. While in classical mechanics, the idea was to… [cont.]
Answered by Roger N - Wed Aug 9 23:52:14 2006
Write equations for the vertical and the horizontal lines passing through the point ?
Q. Write equations for the vertical and the horizontal lines passing through the point : (0,3), in (x,y) coordinates.
Asked by Will - Tue Apr 21 12:34:54 2009 - - 2 Answers - 0 Comments
A. The equations for vertical and horizontal lines are simply in the form y = a number and x = a number. For your case, the vertical line is y = 3, and horizontal line is x = 0.
Answered by unknown - Thu Apr 23 17:23:52 2009
Q. Write equations for the vertical and the horizontal lines passing through the point : (0,3), in (x,y) coordinates.
Asked by Will - Tue Apr 21 12:34:54 2009 - - 2 Answers - 0 Comments
A. The equations for vertical and horizontal lines are simply in the form y = a number and x = a number. For your case, the vertical line is y = 3, and horizontal line is x = 0.
Answered by unknown - Thu Apr 23 17:23:52 2009
What are some ways to solve linear equations with MATLAB?
Q. Also, what are the pro's and con's of using MATLAB to solve linear equations? I am working on a linear algebra project, and considering using MATLAB.
Asked by batman - Sun Nov 8 23:21:14 2009 - - 1 Answers - 0 Comments
Q. Also, what are the pro's and con's of using MATLAB to solve linear equations? I am working on a linear algebra project, and considering using MATLAB.
Asked by batman - Sun Nov 8 23:21:14 2009 - - 1 Answers - 0 Comments
What is the difference between the solution for a system of equations and a system of inequalities?
Q. 1)How does the graph of a system of equations differ from the graph of a system of inequalities? 2) When you solve a system of equations using elimination or subtitution,you will know what the system looks like based on the answer you get.Tell what the three possibilities look like and how you know.
Asked by Lis - Sun Jul 6 18:49:10 2008 - - 4 Answers - 0 Comments
A. 1.) The graph of a system of equation can result in 3 possible scenarios: a.) A point if the two lines intersect. b.)If the 2 lines are parallel, then the 2 lines never intersect or have a solution. c.) If the 2 systems of equation represent the same line, then the will have infinitely many solutions. Graphing a system of inequalities gives you shaded areas where the solutions are. For example, the solution to an inequality can be above the line if it is greater than or below the line if it is less than. If you have several inequalities to graph, then you must make sure all the shaded regions make each of the inequalities true. 2.) If the solution is something such as x=4 and y=6, then the solution is a point. If the solution is… [cont.]
Answered by beedo - Sun Jul 6 18:59:24 2008
Q. 1)How does the graph of a system of equations differ from the graph of a system of inequalities? 2) When you solve a system of equations using elimination or subtitution,you will know what the system looks like based on the answer you get.Tell what the three possibilities look like and how you know.
Asked by Lis - Sun Jul 6 18:49:10 2008 - - 4 Answers - 0 Comments
A. 1.) The graph of a system of equation can result in 3 possible scenarios: a.) A point if the two lines intersect. b.)If the 2 lines are parallel, then the 2 lines never intersect or have a solution. c.) If the 2 systems of equation represent the same line, then the will have infinitely many solutions. Graphing a system of inequalities gives you shaded areas where the solutions are. For example, the solution to an inequality can be above the line if it is greater than or below the line if it is less than. If you have several inequalities to graph, then you must make sure all the shaded regions make each of the inequalities true. 2.) If the solution is something such as x=4 and y=6, then the solution is a point. If the solution is… [cont.]
Answered by beedo - Sun Jul 6 18:59:24 2008
How do I input equations in terms of y on a graphing calculator?
Q. I have a TI 84. I want to know how to input equations that are in terms of y so I could graph them. Such as instead of inputting y=x-6, input x=y-6, or simply equations with constant such as x=6.
Asked by corona7w - Sun Jan 6 20:20:42 2008 - - 2 Answers - 0 Comments
A. you can't put x= into the calculator, you have to solve for y first than put what y equals into your calculator x=6 is a straight line going vertically where x=6
Answered by soccerstar17 - Sun Jan 6 20:27:24 2008
Q. I have a TI 84. I want to know how to input equations that are in terms of y so I could graph them. Such as instead of inputting y=x-6, input x=y-6, or simply equations with constant such as x=6.
Asked by corona7w - Sun Jan 6 20:20:42 2008 - - 2 Answers - 0 Comments
A. you can't put x= into the calculator, you have to solve for y first than put what y equals into your calculator x=6 is a straight line going vertically where x=6
Answered by soccerstar17 - Sun Jan 6 20:27:24 2008
How do I solve complex systems of equations with linear combinations?
Q. Apologies; Over the years I have forgotten. When I ask "complex", I mean that you can't just multiply/divide 1 side to reach an equation that is simple to add/subtract to solve. The system of equations I am currently attemping to solve is as follows: 3x - 4y = 21 4x + 2y = 6 I know how to solve this equation using substition and graphing but am unable to do it with linear combinations. Thanks! Any assistance is greatly appreciated!
Asked by Neil - Thu Aug 17 15:18:57 2006 - - 10 Answers - 1 Comments
A. Any linear equations that can be put into the form a0x+b0y+c0z+...p0q=k0 a1x+b1y+c1z+...p1q=k1 a2x+b2y+c2z+...p2q=k2 * * anx+bnx+cnz+...pnq=kn are called simultaneous' equations if they have (or we think that they may have) a common solution point. Equations in this form can *always* be 'reduced' to the form (called 'upper triangular') 0x+ss0y+ 0x+... 0p=ue0 0+ ss1y+ 1x+... 1p=ue0 0+ 0+ 3x+... 3p=ue0 * * 0+ 0+ 0+... np=uen by adding and/or subtracting multiples of various rows to other rows. When complete p=uen/ n and the rest of the variables may be found by continued back substitution. This is called the 'Gauss-Jordan Elimination' method. If there is a problem and the family of equations 8cannot8 be put in upper… [cont.]
Answered by doug_donaghue - Thu Aug 17 16:32:42 2006
Q. Apologies; Over the years I have forgotten. When I ask "complex", I mean that you can't just multiply/divide 1 side to reach an equation that is simple to add/subtract to solve. The system of equations I am currently attemping to solve is as follows: 3x - 4y = 21 4x + 2y = 6 I know how to solve this equation using substition and graphing but am unable to do it with linear combinations. Thanks! Any assistance is greatly appreciated!
Asked by Neil - Thu Aug 17 15:18:57 2006 - - 10 Answers - 1 Comments
A. Any linear equations that can be put into the form a0x+b0y+c0z+...p0q=k0 a1x+b1y+c1z+...p1q=k1 a2x+b2y+c2z+...p2q=k2 * * anx+bnx+cnz+...pnq=kn are called simultaneous' equations if they have (or we think that they may have) a common solution point. Equations in this form can *always* be 'reduced' to the form (called 'upper triangular') 0x+ss0y+ 0x+... 0p=ue0 0+ ss1y+ 1x+... 1p=ue0 0+ 0+ 3x+... 3p=ue0 * * 0+ 0+ 0+... np=uen by adding and/or subtracting multiples of various rows to other rows. When complete p=uen/ n and the rest of the variables may be found by continued back substitution. This is called the 'Gauss-Jordan Elimination' method. If there is a problem and the family of equations 8cannot8 be put in upper… [cont.]
Answered by doug_donaghue - Thu Aug 17 16:32:42 2006
How might one define "life" ? How do chemical equations enable us to distinguish autotrophy from heterotrophy?
Q. How might one define "life" ? How do chemical equations enable us to distinguish autotrophy from heterotrophy? Disscuss.
Asked by Meline k - Mon Jul 14 00:05:40 2008 - - 1 Answers - 0 Comments
A. suggest that this belongs in the Biology Forum. It is much more likely to get answered.
Answered by Rocknocker - Mon Jul 14 17:49:57 2008
Q. How might one define "life" ? How do chemical equations enable us to distinguish autotrophy from heterotrophy? Disscuss.
Asked by Meline k - Mon Jul 14 00:05:40 2008 - - 1 Answers - 0 Comments
A. suggest that this belongs in the Biology Forum. It is much more likely to get answered.
Answered by Rocknocker - Mon Jul 14 17:49:57 2008
From Yahoo Answer Search: 'equations'
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There are five pivots all based on simple equations which include the high (H), low (L) and close (C) of the previous day's prices. The 5 equations are as ...
myplick.com
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ue, 01 Sep 2009 23:31:25 GM
Students understand how to solve a system of . equation. by substitution. Students create their own process from provided text and then review a process with steps included.
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