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...
Learn how to play Craps from the Sahara Vegas Hotel and Casino in Las Vegas. This excellent video covers all the basics to prepare you for your gambling skills.
How to shoot craps and roll those dice like the pros.
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...
A close look at using matrices, Gaussian elimination, and determinants. This video is good for beginners who have never used a matrix before.
Can't seem to win at the craps tables? How about any other dice game? There are a ton of fun dice games out there, but rolling the number you need to win is pure luck, or is it?
Scare the crap out of your folks with this one. Or scare the crap out of your audience if you're making a low budget film, because these suckers will impress. Realistic vampire fangs! You can't beat them.
Learn how to thrown any number you want by accurately placing the set dice in your hand and rolling with precision. This is a great gambling cheat or trick to pull on an unsuspecting friend.
Craps is a fun casino dice game that anyone can play with a few tips. Learn how to play and win at craps like a pro in this free video series.
Using a short roll, Jigga shows you how to roll dice for the outcome you want. This method can be used when playing craps or other dice rolling games. Cheating at dice is not recommended. It can cause problems with the people you are playing with. But if you want to take the risk, check out this how to video and you will learn how to "set the dice," or cheat at rolling dice.
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...
Sudoku is a one-rule puzzle game that can be either satisfyingly simple or deceptively difficult. Step 1
Learn how to perfect your craps game while in prison. This video demonstrates how to make dice from toilet paper, water and a ball point pen - a common form of entertainment in prison.
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.
I am a man who enjoys a good cup of crap. Not just any crap, but the kind that makes the Seattle coffee-snob inside of me feel all warm and happy as if the sun were out (which of course it isn't.) It's the kind of crap that has traveled through the intestinal tracts of a nocturnal marsupial, cutely called a Civet. It's the kind of fermented brew that everyone should lay their lips on at least once.
Scare the crap out of people this Halloween by sporting some very realistic fake blood. This recipe also makes for a nice and cheap movie prop. You will need 20 oz. of light corn syrup, red, blue, and yellow food coloring, cough syrup, and chicken livers. Watch this video prop making tutorial and learn how make fake blood.
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?
Forget the take out tonight, cook some Chinese food at home instead. Watch this how to video tutorial as professional Thai chef Kai shows you how to cook up an authentic Chinese crap soup. Enjoy your crab soup on any cold winter day.
Having problems with your Rubik's Cube stickers? Are they keeping you from solving that cube super fast? Well, learn how to take off Rubik's Cube stickers and clean the gunk. You can easily take off those stickers with a cell phone battery cover, then use a little Tide-to-Go Instant Stain Remover to not remove stains, but to remove the leftover sticky crap on your Rubiks Cube.
All you need is corn crisp and paint to make this piece of crap. Use this as inspiration for one of your April Fools Day pranks!
This instructional gambling video teaches you the basics of craps. Learn the rules and etiquette of playing the game as a beginner.
This video shows you how to use the don't bets in craps to insure your 6 & 8 place bets.
This gambling video shows you some strategies in placing your bets on the 6 & 8 in craps.
This gambling video show you some of the worst bets to make on a craps table and how to avoid them.
We all want to spic and span our kitchen countertops, our tile floors, and our bathrooms. But for the most part we can bet you've been unwittingly using storebought detergent cleaners or bleach. While these cleaners are in fact excellent at removing grime and buffing your dirty floors to a Midas touch perfection, they also come filled to the brim with known cancer-causing agents, synthetic chemicals, and other gnarly, hard to pronounce crap.
Have the first iPod Video version (5th Gen)? After all of those years of use, it might have finally crapped out on you, but don't let Apple or some dealer repair it for more than it's worth, do it yourself. See how to disassemble the Apple iPod Video display and logic board.
Have you ever wanted to make fake poop? Well, here's your chance. Fool your friends, gross out your girlfriend, prank your family members... it's 100% fun.
New to the pranking business? Well, this video tutorial ought to start you off good and proper. Here, you will learn how to perform the liquid pen prank. Maybe it's called something different, like water pen prank, but the point is to remove everything from the pen, then fill it with water and return the cap. Wait and watch as someone opens the pen lid to spill water all over their important document.
If you've never iced a cupcake before, then first of all, put down that spatula (we know it's SO much easier and faster, but your cupcake will also look like crap in the end and you know it).
For those who want to make zero budget films with special effects, there's only one way to go these days... with a computer. They may look like crap, but they're cheap!
Do you know why we hate those envelopes that come with any greeting card you buy at Hallmark, Papyrus, or a drugstore? They're SO boring. Always the same rectangular shape, always the same opening mechanism, with the only innovation for each envelope being the color, which does vary to match the card.
Your mother puts up with your crap the entire other 364 days a year and constantly toils away making the most scrumptious meals and treats for you, so can you really even justify not making something for her in return on Mother's Day? Luckily, you don't have to be Martha Stewart to create this lovely lace flower brooch craft.
The process of making man - whether you believe we were brought here magically at the whims of an intelligent maker or we evolved slowly from apes over millions of years - was agreeably complex and arduous. Cut the crap and make your own species of miniature humans in a zillionth of the time by watching this video by Jo Nakashima.
Your mother has put up with your crap all these years, so why not repay her with a long-lasting Mother's Day gift? Learn how to make a twisted origami flower that can be turned into a pin or even a hair decoration by watching this video.
You're in drastic need of a new toilet, but you're scared of the cost of installation— don't worry, you can install it yourself with absolute ease. You don't need a plumber for this at all. It's actually one of the easiest home repairs you can DIY, right alongside a leaky faucet. This step-by-step tutorial will show you the whole process of removing your old "crap" toilet and install a bright, shiny new one. You'll need a putty knife, tape measure, crescent wrench, gloves and wax ring.
There's nothing quite like a steaming cup of hot chocolate - and maybe some chestnuts roasting and a fireplace burning - to get yourself in the Christmas spirit.
