Math: Page 27

This video explains to you how to find the area of a square.

In this tutorial the instructor shows how to graph a parabola and also how to find its roots which are also known as zeroes. He gives the quadratic formula of how to find x-intercepts of a parabola. He takes an example and substitutes the values and finds out the values of the roots of the parabola. Now he substitutes these values in the equation to obtain the corresponding y coordinates. Now using these pairs of values he plots the parabola on a graph and draws it. This video shows how to find...

This video describes how to solve direct proportions in algebra which is an important and useful skill in everyday life, school and at work. In this video one would learn key elements of a direct proportion and learn to separate them into a more means more or less means less types of proportion. For example if one had a direct proportion of the more means more type one would simply gather the logical numbers and follow the two simple rules for solving. Overall this video is simple and useful...

Finding horizontal asymptotes is very easy! Not all rational functions have horizontal asymptotes. the function must satisfy one of two conditions dependent upon the degree (highest exponent) of the numerator and denominator. If the degree of the numerator is equal to the degree of the denominator, then the horizontal asymptote is y= the ratio of the leading coefficients. If the degree of the denominator is greater than the degree of the numerator then y= 0. If the degree of the denominator...

Radicals or square roots can be a little tricky when it comes to multiplying and dividing them, but this helpful video will guide you through all the steps you need in order to calculate your answers correctly.Grab a pen and paper and work along with the video. Remember, you can pause and rewind whenever you want.

Finding the volume of a rectangular prism is something you will need to master to pass geometry. You may also use this equation in some science classes. This tutorial will show you exactly how to find the volume of a common rectangular prism. The video also offers two different examples and step by step instructions. Follow along with this video and you will soon have this concept down pat.

Line integrals will no longer be the feared terrorist of the math world thanks to this helpful guide from the Khan Academy. Marvel at the ease in which the integral is taken over a closed path and solved definitively. Then take out a sheet of paper and see if you can do the same.

This video shows you how to easily convert a fraction to decimals. To convert a fraction to a decimal, you simply divide the numerator by the denominator. You first need to move the decimal point in the divisor to the right until it is a whole number. Then, you have to move the decimal point in the dividend to the right by the same number of places the decimal point was moved. Then divide the new dividend by the new divisor. Please note you may need to move the decimal point two places to the...

This simple video tutorial teaches you how to add mixed numbers with uncommon denominators. It takes a step-by-step approach to the issue by first explaining how to separate the whole numbers into whole numbers and fractions, and then adding up those two groups of numbers separately. The video uses simple and easy calculations with audio instructions to illustrate the procedure. Lasting for only a little over a minute, the video manages to explain the procedure rather adequately.

In this tutorial the instructor shows how to solve ratios and proportions. He gives a two step approach to solve an equality of two fractions in which the value of a variable in unknown. He says that in the first step we should cross multiply the numbers across the diagonal. In the second step we need to divide and simplify to get the value of the unknown variable. This video gives a simple two step method on how to solve ratios and proportions.

In this tutorial the instructor shows how to convert a improper fraction to mixed number. In the example the instructor takes the denominator of the mixed fraction and writes it beside and keeps adding it self to the latest number and he keeps on doing that way generating a series until he reaches the value of the numerator. Now he counts the number of occurrences of the numbers in the series before the value of the numerator which gives the value of the whole number in the mixed fraction. Now...

Math Problem Generator gives a video about how to add and subtract variables. All you have to do is combine the coefficient, which is the number that comes before the variable. The numbers are added or subtracted but the variable remains the same. In the video, the example given is 9x + 6x - x. First you add 9x + 6x, giving you 15x. The equation is now 15x - x. If a variable has no number written in front of it, that means the value is 1. So the equation is 15x - 1x and that is equal to 14x.

Want to finally get on top of those icky fraction questions? Learn how to multiply and divide fractions the easy way. In this particular video, you will receive some very useful tips on how to solve most types of fractions. It will teach you exactly how to multiply and divide fractions by multiplying the numerators and the denominators, whether the fraction has like denominators or not. After watching this tutorial, you will be able to solve those dreaded fractions more quickly and a lot easier...

In this tutorial the instructor shows how to derive a straight line equation. He shows us a process that consists of two steps. In step one he uses the slope formula to obtain the slope of the line which is the ratio of difference of y-coordinates and difference of x-coordinates. Now in the step two he uses the slope he obtained in the first step and equates it two a another slope derivation which uses a generic x, y variables and a real point. Now solving this equation he arrives at the...

Need to learn how to divide positive and negative numbers? This instructional video will teach you the step by step process that will make you comprehend how to divide positive and negative integers. Just watch and follow along and you will soon be a wiz at tackling these kind of math equations. The simple steps will leave no question and you will be able to do any problem concerning the division of positive and negative integers and you will be better at math.

In this tutorial the author Binkley shows how to multiply and divide fractions. He says that the first thing to remember before multiplying and dividing fractions is to first check if all the numbers are in the fraction form. Now in the second step if its multiplication we can directly multiply the fractions, but in step three if its a division we need to multiply the reciprocal of the second number to the first number to obtain the result. He further shows how to solve a couple of examples. In...

PapaPodcast's Peter shows us how to calculate the Area and Circumference of a Circle. Area is the amount of square units used to cover a circle. Circumference is the units around the edge of a circle. To calculate these two units we must find a radius and diameter. Diameter is a segment that joins two points on a circle and passes through the center of the circle. Radius is half of this amount. Watch the rest of the video to figure out how to use the radius and diameter to get the Area and...

This video explains how to apply the 7th Law of Exponents. The principal rule explained here is that "To raise a quotient to a power, You can multiply each of its terms by the same power". This is a simple rule explained clearly with the help of a couple of examples, which is so simple that once you watch this video you will never make any mistake as far as the 7th Law of Exponents is concerned. It has also got a couple of more parts, do visit them and learn more.

A video from free math tutoring that teaches you a method of factorization of a complex polynomial.

In this tutorial the instructor discusses about the numeric coefficients that we come across while we work with polynomials. He goes on to discuss the numerical coefficient of a monomial stating that it is the number that is present before the variable in the monomial. He states that the numerical coefficient can also be negative or if there is no number present in front of the variable, it indicates that the numerical coefficient is one. This video helps in understanding what the numerical...

In this tutorial the instructor shows how to identify similar terms in a polynomial equation. He states that in similar terms the variables and their exponents are exactly the same but they may differ in the co-efficient. He shows how to identify similar terms by using some examples. He shows that a change is even the co-efficient makes them dissimilar terms. Similar terms can be further added as the variable of both the terms is same. This video gives an idea of what similar terms are and how...

This tutorial the shows how to find out the measure of an exterior angle of a regular polygon. He shows the formula to find it which is 360/n, where n is the number of sides of the regular polygon. He goes on further to explain the formula by taking an 18-sided regular polygon as example and computes its exterior angle as 360/18, which is 20 degrees. If you are looking to compute the exterior angel of a regular polygon, follow the procedure given in this tutorial.

Algebra can be difficult to wrap your head around sometimes. When it comes to Algebra, you'll need as many solving short cuts as you can get. Here is an excellent video that will teach you how to simplify Algebraic expressions using the distributive property. This informative tutorial will give you a step by step run down on how to solve an expression. It includes four different examples to help you get an idea of how this method works. So before you raise your hand in class, take a look at...

This video will show you how to carry out multiplication of fractions using cancellation, which will make your fraction multiplication problems simpler to solve. You will need to look at the numerator of the first fraction and the denominator of the second fraction and see if you can find a common factor between the two numbers. If one does exist, you can simply divide both numbers by that common factor and simplify. Repeat this for the other numerator and denominator and if possible, your...

In this tutorial the author shows how to find out the missing side of a triangle which is similar to an other triangle. He explains the concept of similar triangle using diagrams and by showing that similar triangles have equal corresponding angles and parallel sides. Now he labels sides of similar triangles and intends to find out the length of unknown side. Now in similar triangles, as the lengths of sides are proportionate he shows how to write a equation of proportion and solve it finding...

Doug Simms online shows how to simplify the radical in a mathematical equation. If you need to brush up on your learning this video can help. Start by finding what is the largest square of the number in your radical. If that number can be solved then solve it, put the answer outside the box and the remainder in the radical. There are some great examples to follow including what to do if your number has a solution, or if there are two factors that your equation can create.

This is a tutorial about how to prove the congruency (equality) of two triangles when the values of two angles and an included side of each triangle is given. The author of this video instructs the viewer that it should be first determined whether the values of two angles of one triangle are the same as those of two angles of the other triangle. Then one must seek to determine the equality of sides included in those angles in both the triangles. When it is found that these three values in one...

Do you need help in math? Unable to calculate the surface area of a rectangular prism? This video helps you understand how to calculate the surface area of a rectangular prism. By showing each step required to calculate the surface area of a prism and a detailed explanation of each step, anyone will be able to learn how to successfully calculate the surface area of a rectangular prism. By the end of the video, you can also calculate the surface area of a rectangular prism.

This video is one of the amazing videos in which we can see the use of the vertices in real application. The video gives a clear explanation on how to use vertices into optimization function. This is a not only basic example in mathematics but also an important foundation for the advanced problems in mathematics. Viewers can gain a clear idea about the vertices and how they are used in an optimization function. This is a very essential part of mathematics which every student should learn...

Do the polynomials, or "giant fractions" in your high school math homework have you puzzled? Let Doug Simms, an expert tutor from free math tutoring, walk you through some easy to follow chalkboard examples. He addresses common snags and challenges in the equation simplification process, as well as some great advice about the kinds of problems that you are likely to see on your math exams. There is no reason to go it alone when Doug Simms is waiting to help you in this free video!

In this episode of Science Theater Dr. Carlson helps you understand the concept behind Density and how it relates to Mass and volume and how to calculate the Density of a substance if its Mass and Volume are known. The Density of various metals is demonstrated using aluminum, tin, zinc, lead and copper of the same mass but different sizes. The easiest way to measure the density of a substance is also mentioned. Next, Dr. Carlson measures his own density using a scale and a bathtub.

Ever wanted to know what your GPA score is? Your GPA is your grade point average, which is a measure of a students achievement in college. This means all your grades are averaged and your are given a cumulative "GPA". Most colleges and universities will figure up your scores for you but you can learn to do it on your own so that you can keep checking up on your scores and stay at the top of your game. This can be beneficial to students looking to better their grades.

This video explains how to solve a single variable linear equation. Keep in mind that your equation should be in the form ax + b = c. The goal is to solve for x. Isolate the variable. Begin by subtracting b from both sides of the equation. Look at your new equation. It should now be in the form ax = c - b. Solve for x by dividing both sides by a. Your expression is now in the form x = (c - b)/a. You have solved the expression for x.

In this arithmetic basics tutorial the author shows how to find the percentage of a number. He says that hundred percentage of number is the same number. He says that if we find the percentage of a number where the percentage is less that 100, then the value of the number reduces. Similarly if we find the percentage of a number where the percentage is more than 100, then the value will be more than the original number. He says that to find the percentage of a number we need to mark a decimal...

This video is about how-to calculate the area of a circle. It is in a very simple, and in an elementary school point of view. Of course, it can be done with either metric or imperial measures, as explained in the video. Only thing is that, it truly explains the simplicity of the calculation in every sense, which means, if you are not going for the ultimate knowledge on how things exist and survive in the form they are in, this video should be helpful. A grown man (woman) can't learn anything by...

This video is a great one on learning about evaluating fractions. The voice explains how to first plug in the numbers given for each variable in the fractions. He also explains the importance of simplifying the top and bottom first before simplifying the entire fraction. He also explains ways that would not be helpful in solving the problem and comparing that with the correct way. Then he notes the use of your simple math rules to find the answer. Excellent video for viewers.

In this video, you will see the steps for finding the volume of a rectangular prism written on a white board. The steps are labeled along the right side. A blue cursor boxes the steps as they are introduced on the board. The formula for finding volume is written along the top left. Colored arrows point out the measurements. Each step is presented in a colored format so it is easy to follow the steps. The final answer is circled in yellow so it is a cinch to compare your answer with the correct...

This video shows the viewer about different shapes and what properties they have. it is very help full to anyone who is learning geometry or who wants to learn geometry. This video also shows a picture as the person labels then so you can see what he means by like opposite sides are parallel. The video covers all the basic shapes as well as showing that some shapes are more specific versions of other shapes, by showing that they have the same properties as well as different properties.

Subtracting integers is easy to do after watching this video. In this math tutorial, the narrator explains and illustrates the process of subtracting integers. He explains the rules of converting the plus and minus signs to make addition and subtraction easier to understand. Following the steps explained in this video will make these math problems a breeze.

Davitily thinks that you can learn to rotate the images quite easily. In this video Davitily explains the process of rotating a geometrical shape about the origin. This rotation is counter-clockwise. Davitily explains the various steps involved in this process. Two steps are explained in this process. The explanation is very simple and done in a very interesting manner. This video is the perfect choice for people wanting to learn the rotation of shapes. This video is a must for people...