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How To: Add rational expressions in algebra

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). With this three-part installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to sum rational expressions in algebra.

How To: Graph radical functions in college algebra

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 study for that next big test). With this two-part installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to graph a rational function in college-level algebra.

How to Walkthrough Darksiders: Drowned Pass

There's four shadow arena fights in this level of the Xbox 360 game Darksiders. In the Drowned Pass, there's the Counter Killer, Wrath of War, World of Pain, and Defender. The Drowned Pass features a deep lake in the middle of the area, a path that runs about the outer edge, and various hidden nooks and caves (some which can only be reached by swimming under water). Follow the path to the left. As you proceed along this path, keep an eye out for an opening along the right side. This will lead...

How To: Close apps to save battery life on your BlackBerry

Battery life is a precious thing on your BlackBerry. You use your phone for all types of tasks, so you need your battery to keep up with your pace. But how? Best Buy has answers. The Best Buy Mobile team explains how you can save battery life by closing applications that are running in the background of your BlackBerry device.

How To: Do a "Math Magic" card trick

This video reveals how to perform and master the "Math Magic" card trick. Of course, you'll learn every step you'll need to know and small tips to make you a better magician. This is a quick and easy trick any magician at every level can begin to learn and try to master. After performing this for your friends and family you'll have everyone asking "How'd you do that?". Watch and finally learn the world's greatest math card trick.

How To: Use controls in Little Big Planet for PS3

Get moving! Learn how to walk, run and jump your way through LittleBigPlanet. LittleBigPlanet exclusively for the PLAYSTATION 3. It lets you PLAY alone, or with friends, in a world of infinite possibilities. Run, jump, grab and swing your way thru imaginative levels and mini-games. If you're feeling creative, you can CREATE your own levels, enemies, obstacles and even storyline. Once done, SHARE them with our online community of thousands of User Generated Levels from around the world for

How To: Do freestyle soccer Lemmens Around the World (ATW)

Learn freestyle football with Mariusz Chorazy, also known as freestyle soccer. Freestyle football is the art of juggling a football (aka soccer ball) using multiple body parts while performing skillful moves at the same time (and never dropping the ball of course). Freestyle football consists of dribbling moves, fakes and tricks. Master your freestyle football moves with these instructional tutorials. This video demonstrates: LATW or Lemmens Around the World (ATW).

How To: Do the Around the World (ATW) freestyle soccer trick

Learn freestyle football with Mariusz Chorazy, also known as freestyle soccer. Freestyle football is the art of juggling a football (aka soccer ball) using multiple body parts while performing skillful moves at the same time (and never dropping the ball of course). Freestyle football consists of dribbling moves, fakes and tricks. Master your freestyle football moves with these instructional tutorials. This video demonstrates: the Around the World (ATW)

How To: Cheat to find the Hologram Tool in Spore

Here it final is. The video of the hologram tool people have been asking about. The search for the answer to weather or not you can get out of your space ship is over. It's yes and no, depending on what you interpret as getting out. The hologram allows you project yourself onto the planet. You're free to look around and move a little bit, but you cannot interact or do anything.

How To: Use Cheat Engine to hack the game Perfect World International

Tired of grinding out endless, boring quests for meager returns when you're playing Perfect World International? Want to rocket to high level and immense piles of treasure immediately? Cheat Engine is your answer! This free game hacking program frees you from having to hunt for cheat codes or exploit glitches to get ahead in PWI. Just follow along with this easy and quick hacking tutorial, which shows you how to use this program to change many of the values of your character and in the game.

How To: Calculate a t-statistic confidence interval for a small sample size

Want to find the value of a t-statistic confidence interval for a small sample? This clip's your ticket. 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. For all of the details, watch this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials.

How To: Calculate Type I (Type 1) errors in statistics

Need a quick primer on how to solve type-1 error problem in stats? Let this video be your guide. 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. For all of the details, watch this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials.

How To: Use one-tailed and two-tailed tests in statistics

Can't make heads or tails of one- and two-tailed tests? Never fear. This stats lesson will teach you everything you'll need to know. 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. For all of the details, watch this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials.

How To: Calculate the confidence interval in basic statistics

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 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 calculate a confidence interval in basic statistics.

How To: Find a 95% confidence interval for a proportion in statistics

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 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 find a 95% confidence interval in statistics.

How To: Putt in World Golf Tour

In this video we learn how to putt in World Golf Tour. When putting, you need to determine where and how hard to hit your putt by reading the green. Click reverse to see the putt from behind the hole. The severity of the break is shown by the dots on the grid and how fast they are moving. Next, read the slope of the grid by looking at the colors on the green. The pointer will also tell you how much uphill or downhill there is on the putt. Then, adjust your pointer to where you want to hit it ...

How To: Play "Part of Your World" on a piano

In this tutorial, we learn how to play "Part of Your World" on a piano. First, you want to start out with the introduction to the song. You should have each of your hands on the piano sitting next to each other. The middle finger of the right hand should hit the "C" chord. Once you have this down, start to play in the rest of the parts of the song. Play the different notes as they are shown on the paper. Then, you will continue to play until you have it finished! Just practice and run through...

How To: Use the world clock feature in Ubuntu

In this tutorial, we learn how to use the world clock feature in Ubuntu. First, you will go to the upper right hand side of the screen and click on the calendar. From here, click where it says "locations". Then, click on where it says "edit and then click from the preferences where it asks for a location name. Then you can click on the time zone drop down menu and see the times of a ton of different places. Add these to your clock and then when you're finished, you can have the weather displa...

How To: Clear your World of Warcraft cache

In this tutorial, we learn how to clear your World of Warcraft cache. First, you will go to your computer, then the local disk (C:), then users. From here, go to the public folder, then click on 'games', and then 'Word of Warcraft'. Once here, you will need to delete the 'cache' and 'wtf' folders. Next, you can exit out of this and continue to play your game as normal. This will clear out history from your game and make it load faster than before. If you aren't a Vista user, you will be able ...

How To: Read your lie in World Golf Tour

In this video, we learn how to read your lie in World Golf Tour. To get the most accurate shot, it's important to read your lie before you swing. This tells you exactly how your ball is hitting the surface before you hit it. Take notice when hitting in the rough or sand. If it's buried, the ball will not travel as far as it would from the fairway. Your best option is to choose an 8 or 9 iron to move the ball from the sand to the fairway. Have fun when you are playing and use your best opinion.

How To: Play a multiplayer game in World Golf Tour

In this video, we learn how to play a multiplayer game in World Golf Tour. First, go to main menu and then choose "play with a group". From here, choose the stroke play or match play game. Also choose the player rank, mode, and number of holes you want to play. Once you do this, click "continue" and invite people to play in your game. You can type in the username you want to play or choose people from your friend list. You can also click on the "anyone" button and then start the game when all...

How To: Play a matchplay challenge game in World Golf Tour

In this video, we learn how to play a match play challenge game in World Golf Tour. This is where you can challenge other players and earn credits from the other player. Play players that are in the same tier or have similar skill level. To play, select the match play challenge option from the main menu. From the game lobby, select the play for credits option and enter in the minimum or what amount you'd like. From here, click "submit" and then start to play your game. As soon as you finish y...

How To: Choose the right shot in World Golf Tour

In this tutorial, we learn how to choose the right shot in World Golf Tour. The game will automatically choose the shot for you. You can find the different shots by clicking on the current swing selection on the bottom left hand corner. A full swing is the most common type of shot that delivers the most power. A punch shot is a flatter and shorter swing that causes the ball to fly lower during high wind. A pitch shot is a controlled swing that is used around the greens. A chip shot is compact...

How To: Purchase virtual golf clubs in World Golf Tour

In this video we learn how to purchase clubs in World Golf Tour. Go to the pro shop and upgrade the golf equipment your player uses. To access this, click on the pro shop link on the top of the main menu. You can search by your favorite brand or just browse by the item that you need. Pay attention to the benefits panel when you are searching for different products. When choosing clubs, consider the club's cost and then buy it by clicking on the "buy now" button. You will be prompted to confir...

How To: Choose the right club in World Golf Tour

In this video, we learn how to choose the right club in World Golf Tour. First, judge your distance, check the wind, and pay attention to elevation. To change clubs, click on the club you have selected. Once clicked, a panel will appear with all the clubs in your bag. Click the club that you want and it will appear in the bottom left hand corner of the screen. Scroll through your clubs using the wheel on your mouse. The yards will change when you mouse over each of the different clubs that wi...

How To: Purchase WGT credits in World Golf Tour

In this video we learn how to purchase WGT credits in World Golf Tour. You can purchase credits or you can win them by placing in the top percents of tournaments. You can upgrade your equipment with the credits and out of the crowded free tournaments. In the Pro Shop, you can also buy new golf balls, gear, and clubs. Like in real life, having the right drive or putter can give you the advantage in tournaments. To see how many credits you have, go to the WGT website and go to your account. Fro...

How To: Put a spin on your ball in World Golf Tour

In this tutorial, we learn how to put a spin on your ball in World Golf Tour. This will help control the roll of the ball when it hits the surface. Putting backspin on the ball decreases flight distance of shot and reduces roll. To put backspin on the ball, move the green dot towards the bottom of the ball in the bottom right hand corner of the ball. For topspin, move the green dot towards the top of the ball. Knowing where to put the spin on your ball is difficult and takes a lot of practice...

How To: Get down from a floating island in Minecraft

In Minecraft there is a possibility of spawning on a floating island in the world. And although this is rare, it does happen, and it can be frustrating being stuck on one single platform while not being able to get down to the world below you. Instead of falling down and dying, this video gives you a safer alternative. In it, you will learn how to build a large pillar of sand and then ride it all the way down to the surface.