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How To: Do look-up addition with VLOOKUP & HLOOKUP in Microsoft Excel

New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 684th installment in their series of digital spreadsheet magic tricks, you'll learn how to do single-condition lookup adding for both the VLOOKUP and HLOOKUP functions. You'll also learn how to use an array constant in the row/column num argument for the HLOOKUP and VLOOKUP functions.

How To: Check the oil in your car properly

One of the most important things about a car is the constant need to check the oil. This is an essential part of the car that will make sure it keeps going for years and years. Not checking the oil on a regular basis can lead to damage to your engine.

How To: Solve quadratic equations with the square root rule

In algebra, you can solve a quadratic equation by applying the square root rule. With a squared term and a constant, the special quadratic equation is easily solved. Could you use a little help figuring out how to divide fractions? Watch 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 f...

How To: Solve multivariable linear equations

Looking for instructions on how to solve linear equations with multiple variables and constant terms? Look no further. 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 ma...

How To: Adjust the brightness on your Android phone

Some people like their screens to be dim while others like theirs to be bright. Some like brightness to automatically adjust, while others like a constant level. One of the salient advantages of a Google Android smartphone over, say, an Apple iPhone, is the inherent extendibility of the open-source Android mobile OS. There are a seemingly infinite number of settings to tweak and advanced features to discover and use. This free video tutorial will show you how to adjust the brightness of the d...

How To: Do a sodium and water experiment

In this video tutorial, viewers learn how to do a sodium and water experiment. Sodium is a silver metal that is very reactive. When exposed oxygen in the air, an outer coding of sodium oxide will form. Simply drop a piece of sodium into a cup of water. When dropped in water, sodium reacts to form sodium hydroxide and hydrogen gas. The sodium will constant move around in the water. Sometimes the heated reaction will cause the nitrogen gas to ignite. Under the right condition, it may even cause...

How To: Find the midpoint of a line segment

A good place to start when you want to learn how to find a midpoint of a line is a circle. Take the diameter of a circle, for instance if the coordinates of the starting point are (1,6) and the coordinates for the ending point are (11,6). The midpoint of a line is the exact central point where a line through these two points would meet. Now the value of y is a constant one as the line runs parallel to the x-axis, the value of x changes by 10, the half of which is 5, this is not the midpoint t...

How To: Use differential equations to solve for velocity

The guy first gives the definition of differential equations. He explains that a differential equation is an equation that contains the derivatives of an unknown function. He then gives some examples of differential equation and explains what the equation's order means. After that he gives an example on how to solve a simple equation. He calculates it and gives examples of graphs. Then he explains what a general solution is and how to narrow down the number of solutions using data from the pr...

How To: Make a claymation video

In this Film and Theater video tutorial you will learn how to make a claymation animation video. This is a Zappos how to video. The equipments that you will need for this are a camera on a tripod, a trigger so that your camera stays steady, constant source of light and clay. Make some animation characters with the clay. Start moving your characters around and take a picture of the movement. When you are editing, each picture will take up two frames. If you want to be in slow motion, then put ...

How To: Operate the windshield wipers in a 2010 Prius

Toyota USA provides this quick video guide to show you how to use the windshield wipers in the 2010 Prius. If you want to control the wipers and washers, take the following steps: To operate the wipers, move the right hand stalk up for a single wipe, or move it down to activate the intermittent setting. Move the stalk down one more position to select a slow and constant wiper mode. One more down pull selects the fast wiper mode. Pulling the entire stalk towards you will activate the windshiel...

How To: Make your makeup last all day

This tutorial will give you useful tips that will allow your makeup last all day. Your skin's natural oils are what break down color and make it fade, so your first step is to put a mattifying lotion like salicylic acid and witch hazel get rid of the oil from your skin. Then, add foundation on top of this layer, dotting lightly in order for it to stay on all day. Using these various tips and more tricks shown in the video, any viewer will be able to apply makeup easily which will last all day...

How to Play conga: modern tumbao

Tumbao is a basic beat. It is 4 4 timing. The fingers on both hands are bandaged on ring and middle fingers. The left hand looks flat, but is played in a heel, tip, heel, tip rhythm. Fingers on right hand are curved to meet the drum head. The left hand keeps the constant rhythm. Right hand does solo portion and moves from one Conga drum to another. Video is slowed down to see the exact rhythmic patterns. It also makes it easier to practice.

How To: Heat your home and save energy

In this video, we learn how to heat your home and save energy. Any gaps around the door can lower the temperature dramatically, so make sure you have weather stripping along the sides, bottom and top of the door. You should also make sure this stripping is on your windows as well. Just by having all these in your home, you will save a lot of money on your bills. Also, you need to make sure your control system is set onto one temperature all the time. If it stays at one constant temperature, y...

How To: Take sticky labels off easily

In this tutorial, we learn how to take sticky labels off easily. All you need to do this is a blow dryer. First, set your dryer to the highest heat setting possible, then blow the air onto your label for 2-3 minutes. Keep the heat in constant contact with the label, then after a few minutes, you will be able to pull the label off right away. You can use this on anything from lotion bottles and aspirin bottles to water bottles and plastic containers! This is a great way to remove the labels wi...

How To: Prune trees into bushes

Pruning is a commong practice that involves removing certain parts of a plant to help improve or maintain its health. It also helps reduce the chances that any branches fall on people and keeping it safe from possible disease. For some trees, instead of letting them grow to giant proportions, you can actually prune them to a certain point so they instead grow to be the size of bushes.

How To: Use water barrels on your garden to save money

If rain is a constant weather in your city, you should check into installing rain barrels outside. These precious storage systems are great to use for watering your plants during the long summer months. Not only does it help you save money, but it helps out the environment as well. They're easy to set up and can be done without much hassle. So check out the tutorial above from the city of Calgary, on how to use rain barrels today. Good luck and enjoy!

How To: Change the oil on a John Deere X320 lawn mower

It's important to know that, like cars, lawn mowers need constant maintenance in order for them to work properly through the years. One of the most shared aspects between cars and lawn mowers is the oil. Knowing how to change the oild is very important and not doing so can lead to a machine that has to work twice as hard and can break easily. So in this tutorial, you'll be finding out how to change the oild on a John Deere X320. It's easy to follow and easy to do. Enjoy!

How To: Define an antiderivative in calculus

The relationship and the definition of derivatives and anti-derivatives is described in this video. First, consider a function F(x)=x^3-5x+2 and another with small 'f', f(x)=3x-5. f(x) here is the derivative of F(x). However, on the contrary, F(x) is said to be the anti-derivative of f(x). There is a catch though; even though F(x) has only one derivative in the form of f(x), f(x) here has more than one anti-derivative. This is because f(x)'s anti-derivatives are of the form F(x)=x^3-5x+c, whe...

How To: Build confidence during pregnancy

For many women, pregnancy is a very vulnerable time, especially when it comes to the health of their child. Your body is changing on a constant basis and it can be hard to find confidence in the fact things will go well. You can learn through this video that you can be proactive in the process of ensuring a healthy pregnancy. Having a diet that is full of healthful foods is key to making sure your pregnancy is on the track to good health. Exercise and reducing stress are also touted as good s...

How To: Convert temperature using y = mx + b

In this video the instructor shows how to do temperature conversions using y = m*x + b. Now if Celsius is represented by the variable C and Fahrenheit is represented by the symbol F, you can replace then in the previous equation in place of the variables x and y giving you the equation C = m*F + b. Now to solve for the values of the constants m and b you need to have values of two sample temperatures in both Celsius and Fahrenheit. Take the first sample and substitute in the above equation gi...

How To: Solve direct & inverse variation word problems

In this video the instructor teaches about direct and inverse variation. Two variables x and y are said to be in direct variation with each other if you can write them in the form y = K * x. The value of y varies directly corresponding to the value of x. Y is said to be directly proportional to x. If you have a sample value of x and y, you can substitute the values in the above equation to compute the value of the constant K. Using this formula you can always find the value of one variable x ...

How To: Graph using the slope intercept equation of a line

This video shows us how to draw a linear equation using the slope and intercept technique. First, the narrator explains how to simplify the equation in order to get the slope and intercept out. He then shows how the coefficient of x equals the slope and the constant term tells us the y position of the intercept point. The technique for drawing the final line is plotting the intercept at the right height on the y axis, then running for some distance along the x axis and rising some amount. Thi...

How To: Calculate acceleration in physics

So, you're speeding up.. on a skateboard, in a car, running.. and you want to calculate the rate at which you are traveling the faster you go? Check out this tutorial and learn a valuable physics lesson. This video will show you step by step how to calculate acceleration in physics and determine if an object is speeding up, slowing down or moving at a constant velocity. Acceleration is based on the direction of the object's velocity and acceleration vectors. That may seem like a mouthful, but...

How To: Set-up an Excel page for print

In this Excel basic video the instructor show how to setup a page in Microsoft Excel. Now you before go to a page setup, first you have to make sure that all the cells are visible in a spreadsheet by extending or contracting the size of different columns. You can also select all columns and make their column width a constant. Now go to the orb and select a print preview to get a preview of how the print out is going to be. Now after checking it out you can make necessary changes in the origin...

How To: Find a slope of a straight line with: Ax + By + C = 0

In this video the instructor shows how to find the slope of an equation which is in the form Ax + By + C = 0. He says that the formula to find the slope of a line in the above form is slope m = -A/B, where A and B are the numeric constants of the variables x and y in the given equation. He goes on and further shows how to do this with a couple of examples. He shows how to reduce any equation into the general form and how to apply the slope formula then. This video shows how to find the slope ...

How To: Solve single-step equation by taking the reciprocal

In this video tutorial the instructor shows how to solve a single-step equation by taking the reciprocal. He says that in the equations of fractions containing a variable on the one side, you multiply the reciprocal of its numerical constant to it so that only the variable x stays out. Similarly we need to multiply the reciprocal value that we used on the left hand side on the right hand side too to maintain the equality. Now after simplification as only x is left on the one side we get its v...

How To: Understand Newton's second law

In this tutorial the author explains the concept of Newton's Second Law of motion which states that force is equal to mass times acceleration. So the equation to compute force F is F = m * a, where m is the mass of the body and a is the acceleration produced by the force on that body. He explains that even our weight is our mass times the gravity. So now he explains that mass of a body is constant and only our weight changes depending up on the situation we are in. If you want a clear underst...

How To: Use windshield washer/wipers on a 2010 Toyota 4Runner

This video teaches you about windshield washers and wipers. It gives great explanation about how to operate the different motions of the wipers on the 2010 Toyota 4Runner. The video also includes information about what this car model includes and where to find the objects. You are able to control the wiper frequency. You may operate the wipers in slow constant mode or fast setting. There is also a front de-icer included with the model. You can operate the windshield washers in intermittent mo...

How To: Replace a toilet ballcock with a fill valve

Most older toilets have older-style fish and ballcock for toilets. But they are prone to fault, like running and constant water. Replacing them with a newer-style fill valve will save water and frustration now and later on. Watch this plumbing video tutorial to learn how to replace a toilet ballcock with a fill valve. It's a little more efficient and it's pretty straightforward, so see how to replace your valve!

How To: Mix different genres of dance music.

Wonder how to become a great DJ? To be a good DJ you need to understand the concepts of mixing tracks, adding cool effects, and of course you need a good sense of rhythm to line up the beats. This how to video explains how you can mix different genres of dance music. You must stick to two basic rules when mixing different genres of music. First, the tunes must sound good together. Second, the beats per minute must be at a constant for beat mixing purposes. Watch this DJ tutorial and you can l...

How To: Use Microsoft Project 2010 with Sharepoint 2010

This video is about combining Microsoft Project 2010 and SharePoint 2010. This combination helps project teams to collaborate and share project information. Information can be displayed on a dashboard. We will also discuss various levels of project management such as starting the project, planning, tracking and reporting on the projects progress.