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How To: Do matrix algebra on a TI-83 calculator

Looking for a primer on how to solve matrix problems using a TI-83 graphing calculator? See how it's done with this free video algebra lesson. 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).

How To: Find the slope of a line in mathematics

Need to know how to calculate the slope of a line? This free video algebra 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 (or just finish your homework or study for that next big test).

How To: Compare fractions using inequalities

Compare fractions with inequalities! Watch this video lesson to see how. 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 free math tutorial, you'll learn how to evaluate fractions using inequalities.

How To: Solve equations with the order of operations

In mathematics, the order of operations define the priority in which complex equations are solved. The top priority is your parenthesis, then exponents, followed by multiplication and division, and finally addition and subtraction (PEMDAS). This video tutorial demonstrates the order of operation with various examples and explains the associated methodology. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autod...

How To: Find the domain of a function without graphing

Want to find the domain of a function without graphing it? Learn how with this free video lesson. 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).

How To: Find and sketch the domain of a multivariable function

Looking for a primer on how to find and sketch the domain of a function z = f(x, y) in calculus? Learn how with this free video calc lesson. 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).

How To: Work with continuous random variables in calculus

Looking for a primer on how to work with BRIEF probability density functions and continuous random variables in calculus? Learn how with this free video calc lesson. 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).

How To: Use eigenvectors & eigenspaces for a 3x3 matrix

Learn how to use eigenvectors and eigenspaces for a 3x3 matrix in linear 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 or study for that next big test).

How To: Determine the eigenvalues of a 3x3 matrix

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 determine the eigenvalues of 3x3 matrices in eigenvalues.

How To: Calculate angles formed between parallel lines

Calculate the angles formed between parallel lines and a transversal. This free video geometry lesson will show you how. 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).

How To: Do acrylic nails at home

If you're a fan of some nail looks, but can't grow the nails required for them, consider doing acrylic nails. With a few tools, you can create great nail looks at home! Watch this video and follow along with Hanh as she shows you how you, too, can do this as easily as pie.

How To: Tie a centauri fishing knot

Know your knots! With this free video tutorial, you'll learn how to tie a centauri fishing knot. To create a centauri knot, you'll most likely use metal film and start by weaving your eyelet.The knot is easy to tie provided, of course, you know how to go about making it. For an easy-to-follow, step-by-step overview of how to tie this useful fisherman's knot in a minute's time or less, watch this free video knot tyer's guide.

How To: Write an analytical proof of the quadratic formula

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 write a formal analytical proof of the quadratic formula.

How To: Make your own clip-in hair extensions

Have you always wanted longer hair but weren't blessed with full locks? If you need a quick fix and don't want to spend a fortune on professional hair extensions, follow this video. In this tutorial, you will learn how to create your very own extensions at home for a fraction of the price. So, if you are feeling like a change, check out this instructional clip and start weaving.

How To: Get Kim Kardashian's everyday makeup look

Kim Kardashian's star just keeps on rising, and that is largely due to her beauty. In this tutorial, learn how to create the same look that Kim wears most often on yourself! If you are inspired by Kim's glamour and want an everyday red carpet ready look, this is the style for you!

How To: Add a placemark in Google Earth

This tutorial walks you through the process of adding a placemark in Google Earth. Follow along as you're shown how to easily add a placemark. Just use the push pin icon, and add your own placemark. Add some information, and drag it to your location, and now you're all set!

How To: Teach a horse to neck rein

Neck reining is a method of guiding your horse. In this tutorial, you will be taught exactly what a neck rein is and how to perform one. Most people think they know what a neck rein is but they are actually wrong. If you would like to know the right way to rein your horse, follow along with this video and soon you'll be horseback riding like a pro.

How To: Geometrically prove the Pythagorean theorem

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. With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to perform a geometric proof of the Pythagorean theorem.

How To: Build your own bird house

Give a bird a home with help from this handyman tutorial! Learn step-by-step how to build a professional looking Bluebird nesting box bird house. To build this nesting box you will need the following tools & materials: rough cedar or pine, a tape measure, pencil, speed square, hand saw, compound miter saw (if possible), exterior wood glue, drill bits, screw gun or drill, paddle bit, coarse thread drywall screws, deck screws, galanized finished nails, and a hammer.

How To: Take an arterial blood gas sample

This medical how to video demonstrates how to take an arterial blood gas sample. The purpose or arterial gas sampling is to assess the patient's respiratory status as well as the acid/base balance in their blood. To perform this medical procedure you will need the following instruments: protective eye wear, gloves, alcohol, iodine, arterial blood gas sampling kit, gauze and a bag of ice. Please not that this video is intended for medical professionals only.

How To: Cook chicken with mole sauce

Cook up one of the most beloved and classic dishes around with this recipe for chicken mole. This easy to follow recipe from Cookus Interruptus incorporates all of the delicious, multi-faceted flavors of chicken mole without any of the intimidating and confusing kitchen talk. This video will show you how to cook chicken mole.

How To: Get a flat stomach in a week

Are addicted to junk food, beer, and alcohol and now you've got a big old belly to show for it? In this video, you'll learn an easy way to get a flat stomach in a week. Yes, a week exercise and routines you can implement in your everyday life, and even while your watching TV. Work towards your hot body with this easy to follow video.

How To: Ace an acting audition for a film

Acting auditions are stressful, and are different depending on what type of project you are trying out for. In this tutorial, get tips from working actors on how to audition for a film or TV show. Learn how to work the camera, emote, and read your lines the way casting directors want you to. Follow these tips and break a leg! See you on the silver screen!

How To: Boost your immune system naturally

Especially in winter time, your immune system can go on a roller coaster ride. In this tutorial, learn how to boost your immune system naturally and up your defenses against things like colds and the flu. In this episode of Ask Amy, Amy takes you through your local supermarket and shows you the right things to eat and drink to build immunity. Follow these tips and fly through next flu season like a breeze.

How To: Apply a high fashion blue smokey eye

Steal a makeup look from right off the runway with help from Fashion Face TV makup tutorials. Rule your school, party, event with this impeccable blue smokey eye and dark gothic magenta lip. The following makeup products were used in this video:

How To: Polish the guts of a paintball gun with a brillo pad

KRASHARPSHOOTER gives a detailed example on how to better improve performance from the Tippman paintball marker. Some of the advantages to following this method is that it allows the internals to cycle smoothly. He shows us, using a very simple method. The method that he follows in a step by step process in his video is start by taking a Brillo pad and dipping it into water. After that while soap is coming out keep rubbing the pad back and forth on the internal of the paintball marker. He sho...

How To: Play "Good Riddance" by Green Day on the ukulele

Scotty shows us how to play Good Riddance on the Ukulele. The song's tuning goes like this E-D-C-G. That's a whole song, it is really easy. Learn this easy song by following the master's finger playing on the Ukulele. Simply, he plays the G which is_ higher pitch than the A. For the whole song, it seems to be a repeating the following tunes in seriesE minor, then D , then C, then G.All is needed to learn playing Green Day's Good Riddance is buying a well tuned Ukulele and making sure you have...