Radicals are square roots which are not integers; the square roots of 2 or 3 are examples of radicals. The presenters show simple ways of how to add and subtract such radicals. They explain that by using the method of factoring, the addition or subtraction is made very easy. If the square root of 8, for instance, is in some addition sum, it can be factored into the square root of 4 times the square root 2. Since we know that the square root of 4 is 2 this can be simplified to be 2 times the s...
In this video the instructor shows how to simplify radicals. A radical is nothing but another name for a square root. To find the square root of a simple number the first thing that you need to do is factor it. If you need to compute the square root of a number, you first need to find a number which multiplied by itself gives the original number under the root. For example, to find the square root of 9, you need to find a number which multiplied by itself gives 9. Here the answer is 3. When 3...
This is a great instructional video on how to do inspect a boiler at home. A home inspection must include the boiler and heating system. What you need to look for are corrosion, pressure and blockages. When you buy or sell a house it is better to go in for a boiler inspection. The condition of a boiler depends on many factors. The age factor is also one of the reasons that cause the efficiency of the boiler decrease considerably. If there is some leakage in the pipes it might affect the press...
This video shows the method to add rational expressions with different denominators. The first step in this process involves finding the LCD. After this is done, the numerator and denominator are multiplied by a specific number so that the fractions are rewritten with common denominators. In the second step the numerators are added or subtracted according to the problem with LCD in the denominator. Simplify the numerator by adding or subtracting like terms. After this, we get a rational expre...
The video describes the basic process of multiplying two rational expressions. The problem illustrated in this video involved multiplying rational expressions of monomial terms with integer coefficients. As with the other example problems, we follow the steps of: factoring, canceling, and multiplying. Because these terms are monomials, no factoring is required (but we still state it as a step for similarity to solving other problems). We then find the greatest common divisor for both terms to...
One can learn, from watching this video, how to multiply and divide fractions. Prof. Alexander gives a discourse on multiplication and division of fractions in a simple, easy way. For multiplication, one should first look for highest common factor in the numerator of one fraction and the denominator of the other, and vice versa, and if found, carry out the reduction by that factor. Then the numerator of one fraction is multiplied by that of the other fraction, the same operation is carried ou...
This video will show you how to carry out multiplication of fractions using cancellation, which will make your fraction multiplication problems simpler to solve. You will need to look at the numerator of the first fraction and the denominator of the second fraction and see if you can find a common factor between the two numbers. If one does exist, you can simply divide both numbers by that common factor and simplify. Repeat this for the other numerator and denominator and if possible, your fr...
Killing more than 29,000 people each year, infection with Clostridium difficile (C. diff or CDI) is the most common healthcare-associated infection in the US. In a disturbing development, new research reveals recurring cases of the infection are soaring.
While the snow-covered mountains can be exhilarating, they can also be dangerous. Here's what to do to stay safe.
In order to play the game Risk, begin by setting up. Name a banker. Players choose a color. The number of players determines the number of armies. Remove the jokers from the country card packs. Shuffle the cards. Deal them face down. Players may not get an equal number.
Two-factor authentication (also known as 2FA) adds a necessary additional layer of security to your username and password in many important apps. On Instagram, 2FA requires you to confirm it's you attempting to log in, with a special code sent to you via text message. Enter the code and you're in ... but what happens when you need to log in and don't have access to your phone?
As if being pregnant did not come with enough worry, a new study found that certain antibiotics are linked to an increased risk of spontaneous abortion, or miscarriage — a terrifying finding for any expectant mother.
As great as the Internet is, it is not without its dangers. Hackers at any time may be breaking into your online accounts and compromising your sensitive information. Last year, hackers broke into Facebook, Gmail, and Twitter and made off with 2 million stolen passwords.
Sewing is an expensive enough hobby without having to factor in repair costs, as well. You can save money (and have more cash to spend on fabric and notions!) by fixing your own machine at home. This video shows you how to clean and fix the bobbin case area, which can often get cluttered with lint and fuzz.
If you're like us, you always begged your parents to let you get a parrot (What? They make you look like a pirate when perched on your shoulder), but they never consented because of the noise factor.
Learn how to choose ladies underwear. There’s a lot more to picking a pair of panties than thinking they look cute in the store. This video outlines all the different factors in choosing the perfect panties.
The evidence is mounting and is becoming indisputable: Gut bacteria play a role in strokes and heart attacks. The link may seem a little far-fetched, but cardiovascular disease may have less to do with what we eat and more to do with what chemicals gut bacteria make from the food we eat.
Even if your cat drives you a little nuts, don't worry, because a new study says that cats pose no risk to your mental health.
In this video, the instructor shows how to collect like terms and factorize. When you are given a linear equation, the first thing you do is to try to organize it. Pair up the like terms. Add the numerical coefficients of terms with the same variables. This is called collecting the like terms. In case you see any common factor across all the terms, pull it out and tag it to the parenthesis. In this way, you can factorize the equation. Next, bunch together your like terms and sum them up. The ...
Watch the following video to understand the steps necessary when simplifying square roots. To simplify expressions with radicals, follow these simple steps:
As you might guess, one of the domains in which Microsoft Excel really excels is finance math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, the 54th installment in his "Excel Finance Class" series of free video lessons, you'll learn how to calculate interest rate risk or IRR.
Shotguns are great for obliterating things that are close to you. Single barrel pump-action shotguns are the one most readily available to most folks, and if you want to depict one in one of your films without buying one or risking injury to your actors, this video will help you. It will show you how to make a prop shotgun out of cardboard and some other tools that looks pretty realistic and will let you shoot with guns without risking shooting anyone.
In this video, Sierra Snowboard gives us some tips on how to select the snowboard that's right for you. Each board comes in a number of different sizes, and most boards come with a size chart specific for that board. These charts can be vague, but are good starting points for selecting your size. One thing to consider is your bossy type. The weight of the rider is the primary factor in selecting the size of a snowboard. You'll notice that the height of a rider is not listed on a size chart. I...
The hook is a common shot missed in golf. If you understand the factors that cause a hook and make a few adjustments to your golf swing, it can be easily corrected. See how it's done.
This video is teaching you how to have proper Risk Management when trading. Not managing your risk will eventually kill your capital, whether you are trading stocks, forex, futures or indices. After explaining the concepts instructions are provided for you to adopt the principles mentioned.
While this costume makeup look seems inspired by the likes of Louis XIV, it's actually based on a funky dunky Rococo costume worn by a contestsant on "X Factor" named Prince Poppycock.
Papaya's are a tropical fruit that is very healthy and a little sweet. But knowing when it's ripe is the true challenge. It boils down to a few factors that include color, smell and other visual cues. In this video you will get tips on what to look for as well as alternatives to getting your papaya to ripen.
This may not be a huge factor for some, but others, it's pretty important. Knowing how to change the time to a car is important for many people who rely on their car's clock more than anything. Each car works differently and can be changed using different buttons. So in this next tutorial, you'll find out how to change the time to a 2010 Hyundai Accent. Good luck and enjoy!
It sucks to be a food allergy-stricken kid in our mass-produced cookie universe since so many cookies either have gluten or peanuts in them or are manufactored in the same factor as other foods with peanuts or gluten. This means major allergic reactions to these yummy foods.
Need to know how to solve a quadratic equation that won't factor? Watch this free video algebra lesson to learn how to solve it by completing the square. 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).
Here's a neat trick. Learn how to find the greatest common factor for a number set using the Euclidean algorithm! 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).
Rihanna and Cassie popularized the faux hawk by shocking everyone on the red carpet with a half-shaved head and hair sticking straight up. Achieve the shock factor of a faux hawk without going prison chic with the shaved head by watching this tutorial.
Inspired by Tim Burton's movies, this how-to video shows a theatrical Halloween look. The cosmetics used are Bare Escentuals mineral foundation, NYX White e/s, ArtDeco e/s Base, MAC e/s in Carbon, Copperplate, Shroom, Ben Nye black eyeliner, Max Factor 2000 Calorie mascara, MAC Prep & Prime Lash, MAC Velvetella lipliner, Nars Scarlet Empress lipstick, NYX Grape lipgloss, MAC Blue Brown pigment, and Jofrika theater blood. Watch this video makeup tutorial and learn how to create a Corpse Bride ...
American Snowmobiler Magazine talks with ZBROZ Racing about suspension components. Check out this instructional video that offers a few tips to improve suspension for your snowmobile. As every snowmobiler knows, the suspension under the sled is one of the greatest factors of ride quality. Learn a few tuning tips as well to increase ride performance with this snowmobiling tutorial.
Back pain can be caused by many different factors. Sometimes a good massage can help the back pain. Get expert tips and advice on massage and other treatments in this how-to video.
The bright colors and reflective sheen in this makeup look are really eye-catching. The cosmetic products used to create this look are ArtDeco eyeshadow base, MAC Sharkskin shadestick, Ben Nye Grande Lumier palette, Rimmel white kohl, Max Factor 2000 Calorie mascara, MAC Solar White, NYX White, Revlon Colorstay liquid eyeliner, MAC Corps de Ballet lipglass, Nars Desire Blush, and MAC Shimpagne MSF. Watch this video makeup application tutorial and learn how to do a reflective violet eye Ben Ny...
Breakfast is one of those things that can be very expensive. In this how to video Chef Paul explains how to make your own breakfast cereal. Make your own cereal out of toasted nuts and grains for an added healthy factor.
This video shows the process of varnishing a black glass Ambrotype. Not a high "wow-factor" here, but some practical knowledge needed in the process. It's very important to varnish wet plate images as they damage and tarnish easily. Learn how to varnish Collodion pictures by watching this video photography tutorial.
Learn a few methods of evaluating the playability of a pool table. Many different factors affect the way a pool table plays.
Corey discusses some of the factors to consider when choosing bucktail to use for the flies you'll be tying. Not all bucktail is created equal! If you find good hair, make sure you stock up.
