Formulas

How To : Calculate and solve for density

Density is a means of representing how much mass is contained in the body of an object. The basic formula is: Density (D) = Mass (M) / Volume (V) so D=M/V. Density is important to know for buoyancy and to understand how heavy an object is. This video will show you three exampl ...more

How To : Create chola 80's style makeup

Heathzilla this is for you baby! Learn how to crea this chola 80's style makeup look. This eighties chola look is H-O-T, so pay attention! Products: Eyebrows: Avon blackest black E/L MAC Carbon E/S's : Emani white E/S Revlon White Artistik 88 pro palette Black Mascara: Colos ...more

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 ...more

How To : Find the area of a rectangle

The area of a rectangle is the basis for all geometry. You will need to know how to do this in order to better understand other objects. This video tutorial will show you the formula for area of a rectangle and how to use it. Don't be confused in math class anymore.

How To : Calculate and add running percentages in Excel

In this tutorial, we learn how to calculate and add running percentages in Excel. First, write out your value and percentage into the different columns. Next, write the formula in the cell where you want the answer to appear. To have the answer appear, highlight the box and dr ...more

How To : Frost Your Cake Like a Pro

Cake decorating is one of those activities that used to leave my hands sticky and my spirits dampened. No matter what I seemed to do, the final result always ended up looking like a preschool art project. Thankfully, I've discovered a few tips that make the whole mess a bit m ...more

How To : Count words separated by commas 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 289th installment in their series of digital spreadsheet magic tricks, you'll learn how to count w ...more

How To : Get Rid of Pores on Your Face

Tired of seeing large pores on your face? Need to take care of this problem before it gets out of hand? Below, you will see steps that you can take to rid yourself of this problem. Things you will need: Moisturizing cream Very warm water Hand towel Use a facial moisturizing ...more

How To : Make MnSO4 from MNO2 (two separate ways)

What is MnSO4 and MNO2, anyway? They are they molecular formula for Manganese Sulfate and Manganese Dioxide. And you can make one from the other. But how? Watch this science video tutorial from Nurd Rage on how to make MnSO4 from MNO2 with 2 separate ways with Dr. Lithium. T ...more

How To : Derive the basic area of a triangle

In this video tutorial, viewers learn how to solve the area of a triangle. The formula for the area of a triangle is A = ½ x b x h or bh/2. The base of the triangle is always at the bottom; it is the side that the triangle sits on. The height is the length between the base and ...more

Dungeon Defenders : Heaven for Hardcore Gamers

Dungeon Defenders is the most exciting craft game on the Fall 2011 release schedule. I got a chance to play it at PAX in August and interviewed developers Trendy Entertainment last month. After more than a year of publishing difficulty and delay, the game finally came out on P ...more

Rumor Roundup : Everything We Know About the Moto G6 Plus

Last year, Motorola released their Moto G5 Plus, a fantastic mid-tier machine that earned praise from both reviewers and consumers. Starting at $229, it was well-built and inexpensive considering everything Motorola managed to jam into it. This year, Motorola is looking to rep ...more

How To : Find the perimeter & area of a rectangle

This video starts out with a basic view of a rectangle and its dimensions. The base is 7 inches while the sides are 4 inches. It then displays the formula for finding the perimeter of the rectangle which is the addition of both bases and both sides. After the substitution of t ...more

How To : Derive a quadratic equation, given the roots

This video shows you how to get the quadratic equation for the quadratic function with roots; (5,0), (12,0) which passes through the point(8,6). It shows a man solving this problem using a black board and chalk to clearly demonstrate the method of plugging in the respective co ...more

How To : Find the volume of pyramids in geometry

A pyramid is a three-dimensional figure with a polygonal base and a vertex. The base can be a triangle, quadrilateral, pentagon, hexagon, or other type of polygon. The volume of a pyramid is given by the following formula: V = (Area of the base x h)/ 3 Since the volume of a ...more

How To : Simulate a live crowd in FL Studio (fruity loops)

This audio production tutorial shows you how to simulate a live crown in FL Studio. Use a microphone or your audio output to trigger cheering or laughter in real-time with 5 easy steps in FL Studio. There's a little formula usage involved, but it's easy. See how to use fruity ...more

How To : Do Celsius to Fahrenheit temperature conversion

The video teaches how to convert degrees Celsius to degrees Fahrenheit. First the boiling points of 32 degrees Fahrenheit and 100 degrees Celsius are plotted on the Y and X axis. Then a line is drawn to join them both. The value m is delta Y (boiling point minus freezing point ...more

How To : Find the area of a circle using squares

In this video the instructor shows how to calculate the area of a circle using squares. She starts with the formula of the circumference which she says is circumference C = Pi * D, where D is the diameter of the circle. Now she says that you can turn the shape of circle into a ...more

How To : Graph an equation in point-slope form

This video tells you how to draft an equation in point-slope form. Consider the equation (y+4) = 2(x+7) for example. The formula for the point-slope form is (y-y1) = m(x-x1). To plot the graph you have to identify m the slope, the x intercept x1 and the y intercept y1. In this ...more

How To : Find the surface area of a cube

In this video, we learn how to find the surface area of a cube. Finding the surface area of a cube is something everyone will have to do in math. The easy formula to figure out this is: surface area= side x side x 6. Your first step to figuring out the problem is to find the l ...more

How To : 9 DIY Cooking Staples You Never Need to Buy Again

Never buy pasta sauce from the supermarket again. Or salad dressing. Or pie crusts, chicken stock, hummus, bread crumbs and other common cooking staples that can be easily replicated within the comfort of your own kitchen. Why? For the most part, making these food items at ho ...more

How To : Count days excluding Sundays 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 189th installment in their series of digital spreadsheet magic tricks, you'll learn how to count a ...more

News : Angry Clones Are Taking Over the App World

In December 2009, Angry Birds was released to the public. The iPhone and iPod touch were the first to take on the demand, then a devoted HD version for the iPad. Since then, it's transcended iOS devices to appear on Android, Nokia, Palm phones, and many others. Next, it broke ...more

How To : Generate random numbers (integers) in Excel

1.Here 10-50 and 300-400 numbers are taken for example to generate the random numbers within the limit in Excel. We using the command of "randbetween" for generate the random numbers and we won't get the decimal or fraction values.2.Now type "=randbetween(10,50)" which means t ...more

How To : Complete Fahrenheit to Celsius conversion

This video shows you how to convert temperatures from Fahrenheit(F) to Celsius(C). In the video, the example of 75 degrees F is used. The formula for converting Fahrenheit to Celsius is given by temperature in Celsius= (temperature in Fahrenheit- 32)/1.8. So for 75 degrees F w ...more

How To : Create a New Year's harlequin mask makeup look

Traditional makeup is too boring for special occasions, so why not try something a little more fun to ring in the new year? This how-to video goes through the intensive process of applying a vibrantly colorful and ornate harlequin mask, using just makeup. The cosmetic products ...more

How To : Calculate variable commission totals in MS Exce

Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 46th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to use the DOLLAR, VLOOKUP, INDEX and ...more

How To : Find the volume of a cylinder quickly

In this video the tutor shows how to find the volume of a cylinder. He relates the cylinder to real world examples of cans etc. Now he states the formula of the volume of the cylinder as the area of the base circle multiplied by the height of the cylinder. So the formula turns ...more

How To : Find the circumference of a circle quickly

In this instance we are going to Find the circumference of a circle by applying formula C=2pr where 'C' is circumference of a circle, approximate value of 'p' is 3.14 because it is irrational number and 'r' stands for radius i.e. half of diameter. So by applying this formula w ...more

How To : Look up a time value with Excel's VLOOKUP function

Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 48th installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to use the VLOOKUP, ISTEXT, ISBLANK, ...more

How To : Find the area of a ring w/ the areas of 2 circles

Doina Popovici's video explains how to calculate the area of a ring. She takes us really slow, down to all the steps of this process. It's very important that she explains every math formula and operation so you cannot get lost into this solving. The video uses nice pictures a ...more

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