This video tells us the method of interpreting derivatives of marginal cost and revenue. If C(x) is the cost of producing x units of a product, C(400) would be the cost to produce 400 units. Now marginal cost is the cost of producing one unit which is equal to the derivative of the cost function or C'(400) which is equal to limit of h tends to zero or lim h->0 [lim(400+h)-lim(400)]/h which is approximately equal to [lim(401)-lim(400)]/1. Similarly, if R(x) is your revenue function, marginal r...
ProfessorElvisZap teaches you about the laws of logarithms. When x is positive, meaning 0<x. x times y equals y times x. This is the commutative property. x times (y times z) equals (x times y) times z. This is the associative property. x times 1 equals x. This is the multiplicative property. x times x to the power of -1 equals 1. This is the multiplicative inverse property. You can use these properties with addition: a+b=b+a, (a+b)+c=a+(b+c), a+0=a and a+(-a)=0. A logarithm is a homomorphism...
This is a great instructional video on how to calculate the age of Universe from Hubble's constant. The speed the galaxy moves away from us is directly proportional to the distance from us. Now think of big bang theory. Hubble's constant is equal to velocity over distance. 1 over Hubble's constant is equal to distance over velocity that is equal to time. Time equals to 1over 71. If you change it into all the same units words it is one over 71000 or 3.09x 10 to the power of 22. It is 3.09x10 t...
Stir frying doesn't just mean "toss whatever you have lying around into the pan and add oil." In fact, stir frying is a precise art that requires control of quantity of ingredients, the right shape of pan (a wok is preferred), and a non-stick pan in order to produce the perfect quality result.
Urban Decay has a nasty habit of releasing highly anticipated makeup palettes in very limited quantities so they sell like hotcakes. Their most recent palette, NAKED, sold out in seconds on their website, but if you were one of the lucky ones to snatch one of these up, then this tutorial will teach you how to create a smokin' hot look using the palette.
There are lots of techniques you can use to throw a pot and to sculpt and mold it, but when you get a big order for a batch of pots, the best technique you can use is the technique that will produce the largest quantity in the least amount of time.
If you're a beauty junkie, you probably go with the "no expense is to be spared" philosophy of purchasing cosmetics. Rather than pick quality or quantity, you go with both.
Hurricanes can occur any time with out any warning. So it is prudent to prepare you self for disaster recovery in case of any hurricane. To protect your self from hurricane by staying at home or to flee from a hurricane you will need some items ready. The main thing is water. So arrange for one gallon of fresh water for one person per day. It is good to store water sufficient for one week. So store enough quantity of water for all the persons in the home sufficient for one week. Make sure tha...
In this Autos, Motorcycles & Planes video tutorial you are going to learn how to clean your car windows so they are streak free. You will need ammonia solution and a mixing bottle. Mix one part ammonia with ten parts of water in the mixing bottle. Make sure you take sufficient quantity of ammonia. Then get a spray bottle and pour the solution into it. Get a piece of rag and a micro fiber towel. Spray the window liberally with the solution and wipe with the rag. Now wipe with the micro fiber t...
In this video Sheeba is demonstrating how to make Kulfi which is an Indian ice cream. For this you need milk, sweetened condensed milk, powdered pistachio nuts, powdered cardamom , saffron and cornflour. Boil all the ingredients except cornflour for about 15 minutes. Once it begins to thicken add the cornflour mixed with little quantity of milk. With the cornflour the mixture will thicken all the more. Keep stirring. Then allow the mixture to be cooled. Put the mixture in Kulfi mould or any o...
Want to learn how to bind your own books? For aspiring publishers, or artists and fashion designers looking to bind a small quantity of look-books for prospective retailers, this tutorial will be of use. Learn how to do the coptic stitch to bind a book in this two-part video tutorial.
The margarita is the most popular cocktail in the world and this video teaches you how to make a great one! This cocktail is perfect for cooling down in the summer and is super easy to make!
This video tutorial is in the Education category which will show you how to solve single-step inequalities using the reciprocal. Let's solve the problem "negative 5/2 X is less than equal to negative 1/5". To solve for "X", we need to get rid of "negative 5/2". To do that, we multiply both sides of the inequality by the reciprocal of 5/2 and we need to keep the negative sign also. So, we multiply both sides by "negative 2/5". Whenever we multiply a negative to both sides of an inequality, the...
This how to video shows you how to graph an inequality in slope intercept form. First, graph the line. Depending on the inequality, use a dash or solid line. Use a solid line for less than or equal to or greater than or equal to. Use a dash line for greater than or less than. If y is less than or less than or equal to, shade the bottom area of the line. If it is y is greater than or greater than or equal to, shade the top area of the line. Check your answer by substituting in any point from t...
This video shows the method to find the length of the total segment using the midpoint. Let the total line segment be PS. Let Q be the midpoint of PS. Let R be a point on the line segment QS. The first step involves the use of midpoint to find out the length of QS. We are given that QR = 1 and RS = 4.5. QS is equal to QR plus RS which is equal to 5.5. Now since Q is the midpoint of PS the total length of the segment PS is equal to twice the length of the segment QS. This is equal to 11 units....
This video teaches us to draw the graph of a piecewise function. This is shown using two examples. In the first example we have 'y' equal to 'x + 2' for x less than zero and '1 - x' for x greater than equal to zero. We plot two points on the function for x less than zero and do the same for the function with x greater than equal to zero. The graph for the first function is erased for x greater than equal to zero, and the same is done for the second function for x less than zero. Note that the...
This how-to video is about Fourth Law of Exponents. Before going to see this let's first know what the fourth law of exponent says. The fourth law of exponents says that "any value other than zero brought to an exponent of zero is equal to one".
Want to know why the sky is blue during the daytime and red during the evening and morning? A simple experiment is all that is needed.
Need to know how to grow a quantity by a percentage? Learn 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 installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to increase a number by ...
If you sew a lot, your probably have a massive quantity of old fabric scraps lying around. This four-part video will teach you how to recycle those strips into all sorts of fun textile projects. These include a quilt, tie-dye strips, and notebook covers for your children's (or your) books for school. No matter what your tastes, there is probably a cool fashion recycling tip for you in here.
In this Home & Garden video tutorial you will learn how to test lawn irrigation systems. John White presents this video. This is done by a simple can test. Take a few cans of the same size with vertical walls and flat bottom. Place them around the sprinkler head at different distances and make sure they are horizontal. This will show whether the sprinkler is spreading water evenly. Then you can time it and measure the amount of water. This way in future, you will know how long to run the syst...
One way to update your living space is by installing new tiles. This video tutorial shows key strategies with tiling projects in your home. By planning material quantities you'll able to estimate the cost of your project. This instructional offers helpful tips on tile care, trimming and cutting, and how to safely use snap cutters and wet saws.
This video tutorial is going to show you how to make ginger tea from fresh ginger. It tastes much better than the packaged ginger. It is very good for colds and stomach. Wash the ginger properly, remove all the skin and cut the ginger into thin individual slices. Ginger being very fibrous, it is difficult for the hot water to penetrate. So, the thinner the pieces the better. Now take the ginger slices, put them in a cup and pour in the required quantity of hot water. Let it stand for about fi...
This is a video tutorial on how to design with gold dusts while decorating a cake. There are many different shades of gold available. Some of them are edible while some are not. The names of some types of gold color are Disco dust, Highlighter gold, Old gold, Sparkle gold, Aztec gold, etc. To intensify your colors, add some lemon extract or vodka to the color .When you use dry color, it looks a little lighter than when it is wet. The video will show you how to use different shades and types o...
In this video the recipe of Peas Pulao has been demonstrated. Peas pulao is made out of Basmati rice and it has to be soaked for about 30 minutes. For this, you need to first add oil in a pan and add bay leaf and seeds. Then add some sliced onions and fry till golden brown. Next add the peas and fry further. Then add water. Water has to be double the quantity of rice. So if 1 cup of rice is taken, then 2 cups of water would be required. Add the rice and salt. Then cover the pan and cook on hi...
Ingredients required: 1)3 eggs
In this video, Jewellia describes how to create a 3 dimensional origami teddy bear. First, she lists the materials needed and the quantities necessary. She then begins the actual process of building the teddy bear, which is broken into steps. Step 1 is "creating the base". You will create 18 "pairs" out of origami paper which you then put small blue origami triangles on top. It looks circular. She then demonstrates how to repeat this circular pattern of triangles upward until you have a cylin...
In this video, we learn how to balance a chemical equation. First, take a look at both sides of the equation and figure out how many atoms there are for both. Once you write this out, you will have an idea of how unbalanced it is. Now that you've done this, you need to think about how you can make the equation equal. Look at the first line and then see how many you have to add to one side to make both equal to each other. Then, go to the second line and do the same. When finished, you will ha...
Math can be tricky, especially when you're trying to decipher algebra. It's a love-hate thing; if you don't love math, then you hate it, and there's no in-between. But it doesn't have to be a pain to solve a few problems. It's actually quite simple once you figure it out. An algebraic equation is an equation that includes one or more variables. These equations can be solved as long as the number of variables does not exceed the number of equations.
There is not an actress who walks the red carpet without a quantity of hair that her mother didn't give her (we know that's a lot of negatives, but hopefully you get our gist). While it's true that many actresses are genetically blessed, that doesn't mean that each and every one of them was born with thick, Victoria's Secret hair.
These Mediterranean fig tree desserts are what Fig Newtons wish they could be. Crafted out of puff pastries wrapped around figs and then stuffed with mascarpone cheese, these babies are a wonderfully delicious way to end your meal. Also, spices like nutmeg and cinnamon add a sweet flavor as well as antioxidants to the dessert dish.
In this Autos, Motorcycles & Planes video tutorial you will learn how to check your brake fluid. There are two things that you need to check; the quantity and the quality of the brake fluid. Locate the reservoir for the brake fluid and check the level of the brake fluid inside the reservoir. The level should not be low. If it is low, fill in more fluid to bring it up to the max level. It also has a sensor that will tell you when the fluid level is getting low. To check the quality of the flui...
In this video tutorial, viewers learn how to light-scribe with a Nimbie BB11 disc burner. This device is an auto disc loading system that allows the user to light-scribe multiple disc without manually inserting them one-by-one. Simply load the disc into the machine with the labels faced down. On your desktop, double-click on the Q-Q-Box icon to start the program. Start up the labeling function, select a desires image and quantity up to 100. Then click on Print. The machine will then product l...
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 497th installment in their series of digital spreadsheet magic tricks, you'll see a formula that uses SUMIFS or SUMPRODUCT functions that will take invoice information for inventory quantity sold and update inventory records to show correct amount on hand (in stock) for each store or branch of the company.
A square root of a number is a value which when multiplied to it self gives you the original number. The square roots of perfect squares are whole numbers. Like square root of 9 is 3, because 3 times 3 is 9. Similarly square root of 81 is 9 because 9 times 9 is 81. Others numbers do not have a perfect square root and in those cases you can only simplify the number to an extent. So to find out the square root of any number first you need to factorize that number. Factorize the number into smal...
This video shows how to make a nutritious homemade cooked dog food using a product called UStew, which contains all the essential ingredients for a balanced homemade food for your dog.
This video shows you how to calculate the percentage yield in chemistry. To find the percentage yield, you will need to divide the actual yield by the theoretical yield. Then, multiply it by 100: i.e. % yield = actual yield/theoretical yield x 100. An actual yield is the amount of a substance produced in an actual laboratory experiment. It is based on an actual physical measurement of a quantity. The theoretical yield is the yield as is calculated on paper: i.e. through calculations. Therefor...
In this video they are showing how to use proportions to solve word problems. In the first example they used 2/3 is equal to x/6. To solve for x, you begin by cross multiplying setting up and equation 3x=12. Next, divide 12 by 3 which equals 4. So x equals 4. In the next example, she has given a situation where she is making a ranch dip using a ranch powder and sour cream. She want to use 80oz of sour cream and she wants to know how much powder ranch she will need. She know that for 16oz of s...
In this video tutorial from RenaissanceRentals you will learn how to maintain and troubleshoot your home garbage disposal. First thing to do is to keep the water running during garbage disposal. Ensure that the leftovers are cut into small pieces and you put only small quantities for disposal at a time. Things like plastics, glass pieces, rocks and food items like egg shells, starchy foods like pasta or rice should not be put into the garbage disposal system. If you follow these simple tips, ...
If you want to know how to calculate percent error easily, you should watch this video. Error is the amount of deviation from accurate values. Error calculation is not possible, unless you make a quantitative measurement of the various quantities involved in your experiment. Measurement can help us in calculating errors and knowing how right we are in our theoretical models. In calculating percent error, We need to get the experimental value and the value which you are aiming at, which is the...