Synogut's Formula Search Results

How To: Find circumference and area of a circle

In this video tutorial, viewers learn how to solve for the circumference and area of a circle. The circumference is the distance around a closed curve. The formula for circumference is C= pi x d. The diameter is two times the radius (d= 2r or r= d/2). The value of pi is approximately 3.14. The formula for the area of a circle is A= Pi x r^2. This video provides examples and demonstrations on how to use and solve with both the formulas. This video will benefit those viewers who are struggling ...

How To: Draw the Lewis dot structure for sulfate

TTUchme1010 teaches viewers how to draw the lewis dot structure for sulfate. The formula for this is SO4^2-. 2- means we will have to add 2 electrons into the lewis dot structure. First, we will have Sulfur in the middle with Oxygen surrounding it. Sulfur is in group 6A so it have 6 valence electrons and oxygen has six, so fill this all in around the elements. Now, you have to add in the 2 extra electrons onto the most electronegative atom. This will be oxygen. Now, you should start bonding t...

How To: Draw the Lewis structure for carbon dioxide & methanol

In this Education video tutorial you are going to learn how to draw the Lewis structure for carbon dioxide & methanol. Carbon dioxide is CO2. Oxygen atoms don’t bond together. So, carbon atom has to be in the center. Oxygen has 6 valence electrons and carbon has 4. Hence, carbon wants to form 4 bonds and each oxygen atom wants to form 2 bonds. So, two each electrons of carbon will bond with 2 electrons of each oxygen atom. The Lewis structure for CO2 will be ( …. O=C=O….). The 4 dots within t...

How To: Calculate & compare interest rates in Microsoft Excel

Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you've come to the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 48th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to use the RATE, EFFECT, NOMINAL and NPER Excel functions to solve the following problems:

How To: Find the surface area of a basic cylinder

First of all cut of the top and the bottom of the cylinder to get two circles. Now take a scissors and cut of the cylinder into two halves from the top to the bottom as shown. Now you get a rectangle shape. You can easily measure the length of the cylinder but to measure the base is a problem. So mark a point on the table with tape and also make a mark on the can or the object you want to measure. Now place the two points over each other. Now use a ruler as a guide and move the can so that th...

How To: Babysit an infant

Babysitting is the prime teenage job for young women to start learning responsibility and earning a wage, but it isn't all fun and games… you are dealing with an infant, which is far from fun, but it's money in your pocket. Earning a little extra money babysitting infants can be more fun — and a lot easier — than schlepping food at your local diner.

How To: Create drop-down menus in Microsoft Excel 2007

This video is a tutorial on how to create drop-down menus in Excel 2007. Select a cell on your spreadsheet and click on the “Data” tab. Go to the “Data Tools” section and select “Data Validation”. In the window that opens select "Allow" and choose "List". You will create a list of the values you want to allow. Type in the values, separated by commas, and click OK. Now you will see your selected cell has an icon to right that indicates there is a drop-down menu containing the value...

How To: Get a flawless skin foundation face

Ever wonder how to get a flawless face? Kandee Johnson shows you how. After cleansing your face or getting out of the shower, use St. Tropez bronzer and then moisturize. After moisturizing, apply foundation using fingertips. Kandee uses Lauren Mercier Moisturizing Foundation in Golden Beige. Make sure to apply to eyelids so you won't see veins or redness. The next step is to use concealer. Kandee uses Lauren Mercier Two - Tone concealer. Use the Lighter color underneath the eyebrow and then a...

How To: Derive the area of a circle

This video is about deriving the area of a circle of radius 'r' using polar co-ordinate. First, we draw a circle and its radius 'r'. Then draw another radius close to it, so that it forms a small triangle-like figure. To find the area of the complete circle, divide the circle into similar small triangles. The area of each triangle is given by half the product of its perpendicular and the base. We give the angle between the two radii as d?. We get the area of the small triangle by substituting...

How To: Calculate variance and standard deviation using Excel

This video shows the method to find the variance and standard deviation using Excel. The variance shows the variability of the data points from the median. We find the difference of the median and the mean. We write the formula using '=' sign. The median and data points are put in it by selecting the appropriate cell. The median is made an absolute constant by pressing the F4 key. This is squared by using '^2'. This is multiplied to the frequency using '*'. The result is found for all the dat...

How To: Help stretch marks, teeth, cellulite, and scars

Simple but effective tips for a better and beautiful you. For a whiter teeth use a toothpaste with a high fluoride content such as Sensodyne. Brush teeth as usual but avoid rinsing your mouth and do not spit off all the fluoride and let it stay in your mouth. Do this every night. For scars, stretch marks, cellulite, anti-aging, dry skin, use bio-oil. It is pure saline oil and a non greasy formula that has healing properties. Just spray a little bit of bio-oil to the affected area. for underar...

How To: Study for a test

In this how-to video, you will learn how to properly study for a test or for homework. The author offers a few great tips. You should avoid cramming and study well before the test date. Make a list of everything that is going to be on the test. Memorize facts and formulas. Make up questions that you think are going to be on the test. Take all the school tools you need in order to complete the test. Lastly, if you prepare well, you will have a great chance of doing well. You should try to stud...

How To: Get summertime beachy wavy hair

Shampoo and condition your hair. Use a lightweight conditioner that won't weigh it down; try a volumizing formula. Blow dry the roots of your hair with your head upside down, using the cool-shot button every few minutes to lock in some volume. Stop when your hair is damp, but not yet fully dry. Spray some salt spray (also called sea spray, surf spray or beach spray) into your palms. Run your palms over your hair, starting at the ends. Try not to get any directly on your roots. Divide your hai...

How To: Find the circumference of a circle

Use a simple mathematical formula to find the circumference of a circle. The circumference of a circle can be determined by using the formula 2 times pi times the circle's radius. Pi is equal to 3.14. If a circle's radius is 10 centimeters, first multiply pi times 2. Pi, or 3.14, times 2 is 6.28. The next step then is to multiply 6.28 times the circle's radius. Since the circle's radius is 10 centimeters, multiply it by 6.28. This gives you 60.28. 60.28 inches, then, is the circumference of t...

How To: Derive the area of triangle using trigonometry

This video teaches the method to find the area of triangle using law of cosines and law of sines together with the area formula. Law of cosines is used when you have the length of three sides. It states that the square of side 'a' is equal to addition of the squares of sides 'b' and 'c' minus the product of 2, b, c and cosA. The values of sides are substituted and angle A is found. This is substituted in the area formula which states that the area of a triangle is equal to the half of the pro...

How To: Choose baby bottles

Regardless of whether you choose to breast-feed or use formula to feed your infant, you will need baby bottles. This program offers some tips on selecting the best style of bottle for you and your child.

How To: Execute Code in a Microsoft Word Document Without Security Warnings

Code execution in Microsoft Word is easier than ever, thanks to recent research done by Etienne Stalmans and Saif El-Sherei. Executing code in MS Word can be complicated, in some cases requiring the use of Macros or memory corruption. Fortunately, Microsoft has a built in a feature that we can abuse to have the same effect. The best part, it does so without raising any User Account Control security warnings. Let's look at how it's done.

News: How Researchers Could Use Bacteria to Determine Time of Death

When a dead body is discovered, finding out when the person died is just as important as finding out how the person died. Determining the time of death has always involved lots of complicated scientific detective work and less-than-reliable methods. However, a study by Nathan H. Lents, a molecular biologist at the John Jay College of Criminal Justice in New York, is the first of its kind to show how microbes colonize a body's ears and nose after death.

How To: Contour your cheeks

Learn how to make your face look thinner and your cheekbones look higher with the tips from this tutorial. This how to video will teach you how to contour your cheeks with bronzer, blush and highlighter. The products used in this video are by Loreal and Physician's Formula.