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How To: Solve exponential and logarithmic equations

In this video tutorial the instructor shows how to solve exponential and logarithmic equations. Solving exponential equations can become very difficult if it involves large numbers. To solve these kinds of complex equations you need to get all the numbers to the same base number. The base number raised to some number should give you your original number. Now if you write the numbers as exponents of your base number you can directly equate the exponent part and solve for the missing variable. ...

How To: Factor a trinomial, GCF, then unfoil

In this video the instructor shows how to factor a polynomial. A polynomial having three terms is called as trinomial. Now if you factor it you will obtain two binomials whose product will be the original polynomial. Before factoring a polynomial you need to find out if the polynomial has a GCF. Look out for the common variables in all the three terms and pull them out which is the GCF of the polynomial. This simplifies the original equation to a polynomial which is of lower degree. Now facto...

How To: Graph quadratic equations

In this video, the instructor shows you how to graph quadratic equations. When you have a quadratic equation in terms of x and y, first try to identify the coefficients of the terms. Now use front end of the quadratic formula to find the line of symmetry which is the first half of the vertex using the formula x = -b/2a. This gives the line of symmetry. Next, plot the line using a few points starting at the line of symmetry. Take sample values of x and find the corresponding values of y on eit...

How To: Solve word problems with proportions

In this video the instructor shows how to use proportions to solve fractions. When you have a proportions problem with an unknown term, cross multiply and divide it to get the value of that unknown term. For example if given 7/8 = m/4, cross multiply 7/8 with 4, giving 7/2 which is the value of the unknown variable m. So if two quantities are proportionate then you can equate them as shown in the video and cross multiply to get the value of any unknown variable. Proportions are just fractions...

How To: Factor trinomials in a very simple way

In this video, they demonstrate how to factor a trinomial. A trinomial is a polynomial with a quadratic term in the form, ax^2+bx+c. To factor this polynomial first multiply the a and c term. You must fine two numbers that multiply to a*c and add up to b. Once you have figured out the two numbers you place the two numbers (D and E for example) in the equation (1/a)(ax+D)(ax+E). It takes a bit of practice to be good at deciding what D and E are, but the best way is to make sure that D*E = a*c ...

How To: Solve percent equations

In this tutorial the instructor shows how to solve percent equations. The general form of a percent equations is that a is b% of c. As there can be three kinds of variables a, b, c, the questions involving percent equations can be of three types having one of the three variables unknown. These kind of percent statements can be solved easily by setting up an equation. So, to convert percent statement into a equation replace the unknown term with n, the 'is' term with equals sign and the '%' si...

How To: Solve rational equations

In this video the instructor shows how to solve rational equations. If you have fractions in your equation, then you need to factorize the denominators first. Now compute the least common denominator of all the denominators of the fraction. Next multiply both sides of the equation with the least common denominator. This cancels out all the denominators of all the fractions and you are left with a linear equation. Now simply multiply the remaining terms in the numerator and add common terms to...

How To: Get six pack abs with cardio & strength training

In this video, Yuri Elkaim will teach you how to get six pack abs using cardio and strength training. He breaks down the discussion of cardio vs. strength training for burning fat and building muscle. In the video, Elkaim stresses high-intensity interval training (HIIT), in which he says you will burn more calories, and therefore lose more fat if that is your aim. Furthermore, working at a higher intensity for longer periods of time increases your cardiovascular strength to an even higher deg...

How To: Find the equation of a circle given: center & tangent

In this video, the instructor shows how to find the equation of a circle given its center point and a tangent line to it. To do this, take a graph and plot the given point and the tangent on that graph. Now, from the center of the circle, measure the perpendicular distance to the tangent line. This gives us the radius of the circle. Using the center point and the radius, you can find the equation of the circle using the general circle formula (x-h)*(x-h) + (y-k)*(y-k) = r*r, where (h,k) is th...

How To: Divide rational expressions

In this video the instructor shows how to divide rational expressions. To divide rational expressions follow this simple four step approach. In the fist step change the division to multiplication by flipping the second fraction. Now the original division simplifies to multiplication. In the second step factor the terms of numerators and denominators in the two fractions. In the third step cancel the common terms in the numerator and the denominator. Now finally in the fourth step multiply all...

How To: Prove some random trigonometric identities

This video shows the method to prove some trigonometric identities. This involves the use of algebra and knowledge of basic trigonometric identities. The video demonstrates three examples to illustrate this problem and its solution. The first problem shows a relatively simple problem involving sines and cosines. The video shows some basic algebra steps to simplify the problem and prove the identities. The second example involves a slightly complicated problem involving square of combination o...

How To: Add & subtract fractions

This is a video that teaches how to add and subtract fractions. For fractions that have like denominators, you simply add the numerator and keep the denominator. Next, you reduce the fraction to its lowest term.

How To: Solve an equation by the distributive property

In this simple tutorial the tutor shows how to solve equation by the distributive property. He states that when there is a number which is multiplied to a full equation, we have to multiply each and every term of that equation by that multiplying number. This is called the distributive property as the value is distributed to each and every term inside the equation. He goes on and solves a problem based on this property to give a clear idea of the property. This video shows how to solve equati...

How To: Divide similar radicals

While dividing the radicals, the numerator and the denominator must be combined into a single term, for example if we want to divide square root of 3 by square root of seven we need to combine the numerator and denominator into a single factor that is square root of 3/7, then we can divide 3/7 which is 0.4285, and square root of 0.4285 is 0.654 which is the final answer.

Hack Your Brain: Improving Memory with Dirty Pictures

If you're interested in nabbing superhero memory strength, the secret behind training your brain is not necessarily what you might expect. Your standard G-rated brain strengthening exercises range from crossword puzzles to Sudoku to calculating fairly simple math problems to improve short term memory, but the real clincher used by some of the pros is essentially... porn. Yep, you read right.

How To: Setup your HP TouchPad using the initial webOS wizard

If you were one of the lucky individuals to score a TouchPad before HP discountinued them, you will need to proceed through the initial setup wizard when you turn on the device for the first time, or after performing a data wipe and reset on the tablet. This guide will walk you through everything from accepting the terms & conditions, connecting to a Wi-Fi network, and creating a webOS account for the first time.

How To: Play the song "Nightmare" by Avenged Sevenfold on piano

Avenged Sevenfold has been one of the biggest rock bands in the world for a long time, but their most recent single "Nightmare" might be their biggest hit yet. It's a beautiful, haunting song, and like much of A7X's work it translates well to some furious piano playing. This video will show you how to play the song on piano or keyboard in the simplest terms possible, but it's a hard song if you are new to piano you might want to look elsewhere.

How To: Create an image gallery (slideshow) in Flash CS4

Slideshow is such a dirty word. Most people immediately think of boring family reunions or 1980's corporate meetings when they hear it. That's probably why web designers prefer using the term image gallery to refer to their slideshow-like works. This video will teach you how to make an automatic image gallery using Flash CS4, which is a slideshow where the images advance automatically on a timer.

How To: Breadboard a DIY USB power supply

While breadboarding may seem like some odd combination of snowboarding and consuming the fluffy pastry at the same time, it's actually just the technical term for using a construction base to build a prototype electric circuit. Breadboards are solderless so they're great for circuit design and are reusable.

How To: Make sweet and sour pork short ribs

In this video tutorial, viewers learn how to make sweet and sour pork short ribs. The ingredients required are pork short ribs, 1/2 of onion, 1/2 of garlic and 1/2 of ginger. Prepare the sauce by mixing together soy sauce, rice vinegar, sugar and salt. Place the short ribs into a plastic bag and add some flour. Mix it inside the bag and then saute or deep fry the ribs until they are golden brown in color. Cook both sides. Then add in the garlic, onion and ginger. Now add in the sauce mixture ...

How To: Use tailor point scissors

In this video tutorial, viewers learn how to use tailor point scissors. These scissors are short, have a broad spine on the blades and contains both a knife and bevel edge. The knife edge allows the scissors to go through the fabric and the bevel edge allows users to cut in layers without cutting what's underneath. The broad spine prevents the separation of the blade points. The short blades allow better control and easily movable. This video will benefit those viewers who enjoy stitching and...

How To: Use the "adult blatt" deer call for hunting

In this how-to video, you will learn how to do the adult Blatt call. This call is made by an adult deer about 18 months old. There are many types of Blatt calls. The Estrus Blatt is the most effective in getting a Buck to respond. The key is to keep the call short. This call will be made by a Doe when in peak heat and looking for attention from a Buck. Turn the calling device quickly. This will be done several times in a row. Do not make a loud alarm Blatt. Keep it short. This video gives you...

How To: Style very short hair for the busy mom

For a mom, there is always so much to do that your own personal care routine may take a back seat. But in this video, top hair stylist Gary France offers tips on how to style very short hair for the busy mom. France shows us his process on a busy working mom. The client receives a lighter color to brighten up her look, a trim to texturize her hair and styles the hair without using a blow dryer, which is great for saving time. France shows us that just because you have kids to take care of doe...

How To: Zap and revive old NiCad batteries with a mig welder

Nicad batteries often die in such a way that they won't take a charge and have zero voltage. This usually means they're shorted out by crystal dendrite growth. Here's a method of bringing them back to life by zapping those shorted crystal dendrites away with too much current and/or voltage. We'll use a welder as a power source. You could also use a car battery, a DC powersupply, or almost anything with some voltage. Charged-up capacitors are popular for this because you can get a very fast pu...

How To: Design a Grecian urn with pink roses & other flowers

He says that he is soling to make some foliage, flowers and leaves draping out of the vase so that it gives you a feeling that you are in Greece when seen from the balconies of houses in the hillside or something. He first puts some lemon leaves to cover sides of the vase making them drape out, them he puts some comatose leaves on the sides along with the lemon leaves and asks you to make them hang outside from the sides of the vase so that it gives a real delicate look. He says that all thes...