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...
Isn't the whole point of those battery-operated automatic fresheners to make things smell good? Normally, yes. But with a simple mod, it could be the world's best stink prank. Simply changing the liquid aromatic cleanliness of the freshener to something not so sterile and sweet is all you need to do.
Here are three different methods you can use to make a stink bomb prank from things you can find around the house—just a pack of matches, an empty plastic soda bottle, and some household ammonia. Mix the tips of the matches with the ammonia and let it sit for three or four days, then stink it up!
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 tutorial video will teach you to make a simple stink bomb. This stink bomb will cause trouble wherever you want to make it. Use this as inspiration for one of your April Fools Day pranks!
This tutorial video will teach you how to make your own stink bomb in half the time with twice the smell. This stink bomb is a great tool for distracting people or just screwing with them. Use this as inspiration for one of your April Fools Day pranks!
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 how-to video, Kipkay shows you how to build a portable stink pen and you need a cheap pen, a bobby pin, and matches. Take apart the pen, save the spring, put the bobby pin through the center of the pen, and bend the edge of the bobby pin. Pull the pin back to fire and create one gross smell. Watch this video pranking tutorial and learn how to build a portable stink pen for practical jokes. Use this as inspiration for one of your April Fools Day pranks!
Prank a bathroom by rigging the toilet with a powerful stink bomb that'll go off when someone closes the lid. Use this as inspiration for one of your April Fools Day pranks!
Ovens get filthy pretty quickly, and that can stink up your kitchen and your food. Watch this video for an in-depth guide to cleaning your grill with cheap household products, restoring flavor to your food and a pleasant smell and appearance to your most important food cooker.
Don't you hate it when your RV (recreational vehicle) crap tank is getting full and starts to stink? Do you feel frustrated not knowing how to empty your RV's septic tank yourself? Do you get some strange thrill out of watching others suffer?
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 is just another crazy prank you can pull in the work place or at home to make time go by faster and have a little fun in the process.
This is a fun little how-to showing what happens when you put some baking soda and vinegar in a film canistar. Shake it up and see it blast off. Keep back though, or you'll stink like your homemade rocket fuel.
Towels get wet more regularly than any other type of cotton clothing, and mildew can easily get all over them and make them stink. Watch this video to learn how some vinegar and your washing machine can get that smell out of your towels.
France is always the butt of jokes. In movies, music, and sometimes in video games people tend to think the Frech, stink. But people need to realize that France has offered a lot of great things. Democracy, french fries, and yes the french kiss. In this tutorial, here's another great thing: French toast. Find out how to make yummy French toast in this helpful tutorial.
Sink making a stink? Never you fear. This DIY home plumbing how-to will teach you how to unclog a bathroom sink, purging it any gross gunk that's accumulated within it. For a step-by-step breakdown of how to fix your own broken down sink, take a look.
Here’s the scary thing about body odor: You can’t smell your own. Make sure you’re not stinking up the joint by reviewing your hygiene habits. Watch this Howcast how to video to figure out if you have B.O.
Check out this instructional hip hop video to learn how to rock the cock, or pussy pop (one or the other, you choose). Learn how to get nasty on the floor. Chihoe "Groove" Szeto teaches you popular, fun dance moves step by step in these tutorial videos. Remember to put some stank on it and practice your dance skills with this hip hop tutorial video.
Sudoku is a one-rule puzzle game that can be either satisfyingly simple or deceptively difficult. Step 1
Video: . For the first prank you're going to need an empty container, preferably black, a smoke bomb and a lighter. I gotta say though this prank is not for just anybody so prank at your own risk. Let me show you how its done, first apply some hot glue on the bottom of the smoke bomb, then stick it inside the container.
Are you a Combat Arms fanatic? Does CA keep you up at nights? Maybe, maybe not. But one things for sure... everyone could use a little help playing this popular computer video game.
Video: . Nobody likes an RV or camper toilet that smells, this video will show you how to prevent your RV toilet from smelling.
It's so nice to be able to reuse old glass jars for food storage. Occasionally, though, even the sturdiest container has to be recycled because it retains the smell of its previous contents. Usually the culprit was garlic, garlic-based, or something pickled, and you're certainly not going to store your fresh herbs or fruit in that. There is, however, a quick and easy way to get that old stink out of your jar and make it usable again. You just need two things...
Removing the garlic smell from your hands can be a very difficult thing to do. Sometimes you just can't stand the smell. Maybe you have a date and don't want to stink, but just can't get that smell out of your skin. There is a way to neutralize the odor so that you can get on with your life. After you get done cooking with either garlic or onions or any other stinky food, run your hands under some warm water. Then get some coffee grounds and mash them up and get them wet. Once the grounds are...
Here is a very easy and simple practical joke to pull on your friends. Putting a bouillon cube in the head will make the person smell like chicken broth. This prank also works with a lifesaver to make the shower stink fruity and the joke victim feel sticky all day. Watch the instructional how-to video to learn the step by step process of rigging the shower head with a chicken bouillon. Use this as inspiration for one of your April Fools Day pranks!
System of a Down. Motley Crue. No matter who you are, a heavy metal song is almost instantaneously recognizable, with bands as diverse as System of a Down and Motley Crue banging out deep, distorted guitar riffs and emphatic beats. The muscal genre of heavy metal is a headache for adults and a form of rebellion for kids, which is why you'll always seen teens rebelling by blaring this music on full volume.
Attention achievement hunters! In this next tutorial, you'll be finding out how to get the Crackshot achievement in the game Dead Space for the Xbox 360. To get it, you must achieve a perect score in the Shooting Gallery in the game.
Most people think of compost as something you make out of garden waste, but in this video we learn how a smaller amount of it can be made out of your daily kitchen waste. If you drink coffee and cook at least one thing a day using vegetables, than this video will help you turn that waste that stinks up your trash can into a helpful, eco-friendly gardening aide. And you get to have worms in your kitchen without feeling like you live in a fraternity house in the forest!
You know how they always make you cover your books in school? Doesn't using a paper bag kinda stink? They always rip by the middle of the school year and everyone has the same one. So, why not be totally unique and make a heavy duty cover out of duct tape?
Life stinks. Literally. Daily living leads to lots of lingering smells. Household odors from cooking, kids, pets, bathrooms, and guests can accumulate. Get rid of them with some simple remedies.
C For Chemistry delves into the chemistry of science experiments. This chemist knows what he's talking about. These chemistry experiments are not only fun, but very educational for all of those interested in scientific chemical reactions and properties.
Here’s the thing—dogs will do things just to please you. But cats want to know what’s in it for them. Learn how to train a cat.
Learn how to make a horrible smelling stink bomb from this video in simple steps. You will need a newspaper, elastic, 2 sparklers and some cat hair. First put the cat hair in the newspaper. Crush a sparkler into powder and add it to the newspaper. Roll the newspaper and tie it up using the elastic. Now attach the other sparkler to the paper. Finally ignite the sparkler and throw your stink bomb to test it.
Experts from the World Health Organization just expressed concern for the rising number of measles outbreaks across Europe. Despite a perfectly capable existing vaccine, "immunization coverage has dropped below the necessary threshold of 95%," causing the measles to spread throughout the European region.
If you've been keeping tabs on the rumor mill for the iPhone 7, one of the most discussed elements of Apple's upcoming device is the possible elimination of the headphone jack in favor of a Lightning connection.
