From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to solve a system of linear inequalities by elimination.
Elimination in mathematics is used to find the solution set of a system of equalities. This video tutorial shows how to use elimination to find the solution set of a given equation and offers several examples to illustrate the process. Before applying this method, the equation must be in the form “Ax +By=C.” When graphing a set of mathematical equations that intersect, the answer to the elimination is the point on the graph where the two lines cross.
The video shows us how to solve a system of equations with the elimination method. First write the two equations one on top of the other, as it is going to be elimination method and it is recommended to write it in that way. Here the 2 equations are x+y=-3 and x-y=1. In the elimination method we need to add the 2 equations by columns. So adding it column wise we get to have 2x=-2 and solving this we will get the value of x=-1. Then you need to substitute this value of x in any of the two equa...
\When both equations in a linear system are in the form Ax + By = C, you can solve the system using elimination. How is this method different from substitution? The idea behind the elimination method is to create a new equation from a combination of the original equations in the system. The new equation is formed by adding or subtracting the originals. When we combine two true equations, the sum or difference must also be true.
This video helps us understand the organic molecules and elimination reaction. Take some sugar in a beaker. Sugar has 12 carbon atoms, 22 hydrogen atoms and 11 atoms of oxygen. The sulphuric acid is poured into the sugar and the color change is observed. The color of the sugar gradually changes into black. The sulphuric acid causes an exothermic reaction which releases a large amount of sulphur dioxide gas. All the water (containing hydrogen and oxygen atoms) is eliminated out of the sugar du...
A close look at using matrices, Gaussian elimination, and determinants. This video is good for beginners who have never used a matrix before.
In this video the instructor shows how to solve a system of equations by elimination method. First you need to know how many possible number of solutions you can get by solving a system of equations. There are three possibilities. In the first case there are two lines with different slopes, so they intersect at a point which is the solution to that system. In second case there can be two lines with same slope but are parallel to each other. In this case the system has no solution. In the thir...
This video is about using the elimination method to solve a linear system. The lady presenting this video says that elimination method means that one of the two variables has to be eliminated while adding up the two linear equations. She then explains the example equations 6x-2y=66 and 5y=-29-2x. She asks you to first line up x and y. So the second equation is rewritten as 2x+5y=-29. Then she says that, to eliminate a variable, we should have their variables equal in value but of opposite sig...
This instructional ceramics video shows you how to trim a round bowl. It is much easier of you have a centered pot to begin with. It is also helpful to leave a bit of extra clay in the base so that one can trim more freely. Once the clay is semi-dry, you can begin trimming. After trimming, smooth the trimming marks out using a rubber rib. A touch of water on the rim will re-elevate the rim after trimming your round pot.
Before you paint the walls it is important to paint the trim first. A painting pad is a very useful tool for painting along the edge where the ceiling meets the wall. It has guide wheels on it and will roll right along as you paint the trim. Next you will want to paint your woodwork including your baseboards and trim. When you go to roll the wall first take some painters tape and run it along the top of the baseboard to keep the specks that fly off the roller from getting on the baseboards. U...
Watch this instructional ceramics video to learn how to trim a large tiered bowl with Simon Leach. With a thin bowl, one needs to be careful when balancing the upside-down bowl on the bat. Leach trims each individual tier with a large trimming tool. The large and possibly wobbly ceramic bowl can become once again even and graceful with some adventurous trimming. As we can see from the trimming process, when throwing a tiered bowl, it helps to leave some extra bulk.
Dress and trim your dog to the nines by watching this video on how to trim or cut your dog's nails. Making sure their talons are nice and people-friendly is a necessary component of pet care and will also boost canine egos as they look at their sharp silhouette in the mirror.
To begin in controlling the tail spin on your helicopter you need to turn your helicopter on and then turn the controller on. On your controller there are two trim bars. If it begins spinning to the left, tap the right trim; likewise, if it begins spinning too much to the right, tap the left trim. Unfortunately there is no memory in the PicooZ helicopter, so every time you turn on the helicopter you have to trim it. In the example video the helicopter needed to have the trim bar pressed 12 ti...
Check out this video cooking tip from The Chef's Toolbox in Australia. Watch this tutorial to learn how to trim chicken pieces like a chef. Trimming chicken is easy with a little know-how, see how to do it right here.
Watch this ceramics tutorial video to learn how to trim your bowls using the pottery wheel and some trimming tools. The instructions in this how-to video are very detailed and best for beginner to intermediate potters with some experience. These tips will help you improve your bowls by trimming them nicely.
This clip provides a quick reference on how to create realistic trim quickly using splines and editable polys. Whether you're new to Autodesk's popular modeling software or a seasoned 3D artist just looking to better acquaint yourself with the application, you're sure to be well served by this video tutorial. For more information, and to get started modeling realistic trim in your own 3ds Max projects, take a look!
After you've assembled your clips in order, you can fine tune your sequence by trimming the edit points between each clip. This video explains the many tools you can use to make trimming videos easy and precise, including the ripple and roll tools. These tools allow for seamless editing.
Even the best potters don't always get a perfectly finished vase, pot, or jar immediately after throwing. In fact, it's actually quite common for a potter to go back over his work and trim off or reshape the uneven parts to achieve a balanced finish. This is precisely what master potter Simon Leach does in this pottery video.
Sudoku is a one-rule puzzle game that can be either satisfyingly simple or deceptively difficult. Step 1
Now that you've imported your footage into Windows Live Movie Maker, you're ready to edit it. A good first step is to trim the beginning and end points of the individual clips that will go on to make up your movie. This clip from Vimeo's excellent Video 101 series of video tutorials will teach you how to do precisely that.
A little trim can really add a nice look in your house or apartment. This DIY from Buildipedia gives you clear, easy instructions on this task that any home DIYer can do with a few tools. Give it a look and give it a try!
We know what you're thinking: You have two left hands and even cutting in a straight line is a monumental feat. But trust us, even butterfingers can cut their bangs professionally. In fact, if you tend to cut slightly slanted or jaggedy then your bangs will look even better!
This video will be very handy to all the Chinese painting enthusiasts out there. It demonstrates how to trim an old split brush in to a sharp liner by trimming it with scissors. This allows you to do multiple kinds of brushstrokes without changing brushes, saving time and allowing you to purchase fewer brushes.
Simon Leach shows us how to quick trim bud vases.
Simon Leach shows us how to trim a plate.
In this video, we learn how to trim a lamb shoulder with Lidia Bastianich. Start off with your raw piece of meat laid out in front of you. You will want to trim the meat around the outside where the most fat lies. Remove the fat that is excessive with a sharp knife. Cut as close to the bone as possible, then trim off the excess fat. Remember, some fat is good to keep on the meat for flavor. Cut the meat into cubes after you have removed the fat from it. Once finished, you will be able to roas...
Getting your tenderloin steak trimmed at the butcher is what most of us do when we're craving steak for the night, but why spend the extra bucks when you can trim that tenderloin at home?
Ron Hazelton shows a great way to bring the outdoors indoors with a garden window. First remove the existing window. Pry off the exterior trim and remove the old window framing. Build a new frame for the new window with 2x4's and shims. Trim away any exterior siding if necessary. Use waterproof flashing paper and caulk to make the new window watertight. Install the new window into the frame with rust-resistant screws. Add another run of caulk, then trim off the excess flashing paper. Use anot...
Haircuts rock - they get rid of unwanted split ends, trim up all of that dead, scragly hair that you've overdyed and overprocessed, and generally make your hair look healthier and bouncier. But they're also super expensive.
The fuel trim in your car is the mixture of air and fuel in the engine, which needs to remain in balance for an engine to run properly. This video will teach you about how to assess the fuel trim on your vehicle and adjust it.
In this video, you'll learn some neat methods for making hedge trimming an easier chore. Save yourself the back ache and follow the steps in this video. Easier maintenance always begins with the proper tools. Lay down a drop cloth to avoid debris, and make sure you remove wayward branches. Doing the hedge trimming will be a snap from now on!
Painting a room can be an easy and quick way to add some character to any room. When painting a room, many people tend to paint the trim another color. This tutorial will show you how to properly paint the trim and make sure your painted walls are untouched. Good luck and enjoy!
In this video tutorial, Mark Donovan of HomeAdditionPlus.com walks us through how to install baseboard trim. Baseboard trim can make a big difference in a room, if you do it right. Of course, if you do it wrong, it can make the wrong kind of difference!
Buy yourself a whole beef brisket and then trim it up for a "low and slow" barbecue on your grill or smoker. This beef brisket trimming method will save you some money, and it's easy to do, as demonstrated by one of the BBQ Pit Boys!
Watch this ceramics tutorial video to learn how to trim your pottery using chuck. This technique and the tips on how to do it are best for intermediate potters with some experience. This instructional video will have you trimming you pottery using a chuck in no time.
Watch this ceramics tutorial video to learn how to trim your raku pieces. This how-to video is best for potters with some experience with the pottery wheel. The tips in this instructional video will help you easily trim your raku pieces.
Even getting your hair trimmed at the salon costs a fortune these days, so why not cut back on unnecessary expenses and do the trimming at home? Take a look at this video to learn how to cut edgy side bangs using a razor.
Getting rid of split ends is easy and should be done between hair salon visits. Learn about trimming hair with expert tips in this free hair care video series.
In this tutorial, we learn how to trim your dog's nails without cutting them. Before you begin, you will need a Dremel tool with a sandpaper drum attached. Now, have your dog sit down and place their paw up on your knee. Now. grab the tool and gently place it on the tip of the dog's nail. Do this on each of the nails, until you have trimmed all of the nails. Make sure you don't trim down too much or push too hard, this could cause a burn on the dog's nail or injure them severely. Keep treats ...
Something that every gardener needs to know is how to prune and trim your plants properly.Being able to perform both of these functions is important for keeping your garden beautiful and making sure that they will last for a long time. When pruning or trimming plants, it's important to always use the right tools for the job.
