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...
In this video the instructor shows how to factor the GCF and difference of squares. When you are asked to factorize a number or monomial or a polynomial, the way to do is break it down into individual terms. When asked to factorize a binomial, try to pull out any common terms and factorize the simplified equation. When you are asked to factorize the difference of squares use the general formula which states that the factors of (a*a - b*b) is (a-b) * (a+b). Now substitute the given values in t...
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...
In this video the instructor talks about Pythagorean theorem and how to apply it to right triangles. Pythagorean theorem states that in any right triangle if a and b are the lengths of the legs and c is the length of the hypotenuse the sum of the squares of the lengths of the legs is equation to the square of the length of the hypotenuse. That is a*a + b*b = c*c. This theorem works only for right angled triangle. So if you have the lengths of the two legs of a right triangle substitute the va...
In this video the instructor shows how to find out an equation of a perpendicular line. If you need to find the equation of a line passing through the given point and perpendicular to another line, the first thing you need to do is compute the slope of the given line. Obtain the slope of the equation by writing it in the form of y = mx + b. Now the product of slopes of two perpendicular lines is negative one. So the slope of our required line will be negative inverse of the slope of given lin...
In this video the instructor shows how to convert temperature using the point slope form. In this kind of problem sometimes you are given a temperature in Fahrenheit and its equivalent in Celsius and an other temperature similarly in both Fahrenheit and Celsius. Now you are asked to find a linear equation for these pair of temperatures. To solve these kind of problems assume that the given temperatures represent the point (x, y). Now you have two points. Substitute this value in the point slo...
In this video the instructor shows how to write a linear equation. If you need to find the equation of a line that passes through the two given points then you need to find the linear equation of that line. The first step is to find the slope of the line that passes through these points. The slope can be calculated by finding the ratio of the difference of y coordinates to the difference of the x coordinates i.e. the change in y up on the change in x. Now substitute the value of slope and any...
In order to solve a quadratic equation by completing the square, take a quadratic equation and make sure that the coefficient of the first squared term in one. If it is not factor it by pulling the term out to get it to one. Now just write down the first two terms in side a bracket and after it add the third term. Now take the coefficient of the x term and take one half of it and square it and put that number back into the bracket. Now as you added a new number, to cancel it out subtract it f...
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...
We will be translating the sentence "twice y differs from 5 by more than two, “into a mathematical equation. The word twice generally means two times, so 2*y (because y comes next in the sentence). Differs normally means is different and a difference from something in a mathematical sentence means subtraction most of the time, thus minus five. We don't know if we’re talking about below 5 or above 5 on the number line, so we put absolute value around the equation. More than implies a greater t...
This is video on mathematics. It specifically deals with geometry. The video describes how to determine where the y-intersects are when a point and distance to the y-intersect are given. The author starts out by giving an example ordered pair. The speaker next shows an example of how to solve such a problem. The speaker uses the distance formula along with the given distance and x-coordinate in order to solve for the y-intersect values in question. Most of the video entails solving this example.
Learn how to add or subtract fractions with math in simple steps. First convert any story line you have into a fraction. Now you have to convert the denominators so that both the fractions have the same. To do so multiply both the numerators and denominators with the same number. Now when you have the same denominators add the numerators to get the answer. Reduce the fractions to a lower value if you wish. Try this out with some other examples.
NotesCollegeAlgebra teaches you how to find intercepts on a calculator TI-83. You start with y plus 1.7 equals .8 times x squared plus 1.4 times x. First you subtract 1.7 from both sides, you get y alone on one side. The window should be set to -5...5, -5...5. X scale should be at 1, y scale at 1 and x rez at 1. Make a graph for it, like a parabola. Use trace to get y intercept at negative 1.7. The x intercept is about .85. Continue to use the calculator to get all the values that you need.
Curt gives a few tips on the art of seducing a woman. To impress a girl, especially a beautiful girl, the only thing you really have to do, is to not try and impress her. She wants to be with a man who already thinks of himself as equal to her, not someone who is trying so hard to reach her level. She wants someone who knows his own value. Approach the woman with confidence, letting her know that you already have self worth and respect for yourself. Never use pick up lines or buy her a drink....
This video teaches how to fill in the blanks with custom number format in Excel. Open any similar worksheet as shown in the video or type the same to use. Select all the cells in the columns E and F and press F5. Now click 'Specials', then select 'Blanks' and click 'OK'. All the blank cell will be highlighted, now enter the value and press 'Ctrl+Enter' to populate all the blank cells. Press 'Ctrl+1' to format cells, select custom if you want something to show up in the cell but not really be ...
Watch as iblogtutorials teaches you how to speed up your Windows XP and Vista shutdown times. To speed up your Windows shutdown time, do the following: Go to Start and select Run. Type in "regedit". Click the triangle next to "HKEY_LOCAL_MACHINE" and then click "SYSTEM" current control set. Click the Control folder. Wait to kill service timeout. Change the Value data to 0.2 seconds. Restart your computer and from now on your shutdown time will be much faster.
Learn how to change your IP address using a Linksys router in simple steps. First search for your IP address in the internet and find it from any of the websites available. Now go to your Linksys setup page by accessing it with your username and password. Go to Mac address code and change the last set of digits by increasing or decreasing a value. Now save the settings and reset your modem and router. Finally check your new address to finish.
Follow this video to learn how to formulate calculations in Microsoft Excel. First type in a list of numbers in the cells. In order to calculate the median click on the cell where you want the answer to be shown. Then type equals, average, open bracket and insert the cell code where the first number is, colon, and then type in the cell where the last number in the list lies, and close brackets. In practice this is an example where the numbers are in a list from cell A1 to cell A11: =AVEARAGE(...
Notes College Algebra teaches you how to find the equation of an ellipse given a graph. You first want to find out the center of the ellipse, which in the video is (2, -3). The major axis is parallel to the X axis. The equation is (x - h) squared/a squared plus (y - k) squared/a squared equals 1. A is the distance from the center to either of the vertices, which is 5 over here. B is the distance from the center to the top or bottom of the ellipse, which is 3. You then use these values to find...
In this Excel basic video the instructor shows how to setup a spreadsheet and use cell references. Cell references are used in Excel to refer to other cells in a formula. When a formula contains data based on the cell reference the formula auto generates the result each time the value in the cell changes as the formula contains only the reference to the cell and not the actual data present in it. In this video the tutor goes on and shows how to write a few basic formulas using cell references...
In this video tutorial solving time techs you how to apply the stabilize video effect before editing in movie maker. Download and install Virtual Dub from the link in the description and download the deshaker filter also from the link provided. Extract the filter into the virtual dub folder as shown and open the video in Virtual Dub. Compress the video using the DivX codec which can be downloaded for free from divx.com. Apply the filter by selecting the deshaker filter and change the source p...
In this tutorial the instructor shows how to perform a long division through an example. He gives a simple method where takes the first left most number, with minimum possible digits that can be divided by the divisor, and tries to divide it by the divisor and this gives the quotient. Now he shows how to multiply the quotient with the divisor to get a value which is to be subtracted from the original divided number. Now in the third step he shows how to bring down the next digits and asks to ...
In this video the instructor shows how to solve logarithmic equations. To solve a logarithmic equation, the first thing you have to do is try to get one logarithmic term if possible. To subtract two logarithmic terms use the formula Log (a) – Log (b) = Log (a/b). Now to get rid of logs, perform exponentiation of the base. Exponentiation of the base is raising a number to the power of the logarithmic term where the number is the base of the logarithmic term. Here the value turns out to be the ...
If you want to manage what sort of data is entered into your Excel spreadsheet, data validation will help you to accomplish just that. In this Excel tutorial from ExcelIsFun, the 549th installment in their series of Excel magic tricks, you'll learn how to use data validation to full effect in your Microsoft Office projects.
In this video the author shows how to draw a rhombus when given with the values of long diagonal (D) and a short diagonal (d). Now he draws the long diagonal of size D horizontally on a sheet of paper. Now he points the mid point of the line as he explains that the diagonals of a rhombus meet at midpoints. So now he takes the ruler and draws an another line perpendicular to the first line through its marked mid point such that the length of the perpendicular line is d/2 both above and below t...
Video describing about how to calculate a sales tax price based on purchase price and sales tax percentage. There is one example which is described as below:
The video starts off with the instructor telling you to roll together a piece of octopus behind the salmon. You then make a hole with your finger inside the salmon. The hole you made in the salmon is then filled with tuna. and then salmon roe is added to the top to complete the aesthetic value of the piece of sushi. The finished product looks a lot like a blooming flower and leafs growing under the base of the sushi roll.
In this tutorial the instructor shows how to convert lengths between different units. He show a two step approach where in the first step he setups a relation between centimeters and meters showing that 100 cm equals 1 meter. Now he writes it down in a fraction form and equates it to another similar centimeter upon meter fraction where the value in meters in unknown. Now he cross multiplies and solves the fractions giving the result of the unknown meters. This video clearly explains how to co...
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...
In this `Math Made Easy' tutorial the instructor shows how to perform Long Division. He gives a simple four step approach where in the first step he shows to divide the first left most number by the divisor and this gives the quotient. Now he shows to multiply the quotient with the divisor to get a value which is to be subtracted from the original divided number. Now in the third step he shows how to bring down the next digit and finally in the last step he asks to perform the same procedure ...
How to Use the Highest Common Factor method for Factoring
In this tutorial the author explains about the concept of X and Y intercepts in coordinate geometry. She uses a graph consisting of a line to explain the concept. She tells that Y intercept of a line is nothing but the value of Y coordinate where the line crosses the Y axis. Similarly she tells that X intercept is the x coordinate of the point where the line crosses the x axis. She demonstrates this example using a graph tool. In this video the tutor shows how to find the X intercept and Y in...
Learn how to use Excel stylistic and number formatting by watching this video. You'll learn how to format a cell. These have different types of formats like general, time, date, etc. You'll also learn how to create a table. There are different types like names, values, time and time etc. Learn to create names like employee name and fill in the borders, and create thick lines. Watch this video for more information!
This video shows you how to easily convert units. The first step you have to do is setup a proportion between a known conversion (e.g.. convert 2.5 km to m: 1km = 1000 m, => 1 km/1000 m = 2.5 km/X m). The second step you have to do is solve the equation by taking the cross product and find out the missing value (x). (e.g.. 1 km/1000 m = 2.5 km/X m <=> 1 x X = 1000 x 2.5 <=> x=2500 m). That's it! Good Luck!
Learn how to do two step math problems with this video tutorial.
Learn how to edit form fields in Adobe Acrobat 9 Pro. Start by looking at a automated form that has some errors in the field of gender and marital status. To correct click on forms add or edit fields. Click on the field that needs correcting and figure out the error. Rename the fields to reset them and correct the field. Double check that the name an tool tips have been fixed. Create a cross hairs that you can type over with the correct values you want. You can also shift over boxes. A specia...
To add two fractions we need to add the numerator and denominator. For example:
This is an Excel magic trick video in which the instructor shows how is time represented in Excel and how it is formatted before displaying it to us. He talks about the decimal representation of the time. He says that if O hour is mapped to the number zero and 24th hour of a day is mapped to number one then we can represent any time of the day in the format of a decimal number between zero and one. He shows the type of formatting that excel uses to convert the decimal number into a human read...
In this tutorial the author shows how to find the circumference of a circle. He says that the circumference of a circle can be calculated by using the formula circumference C = 2 * Pi * R, where R is the radius of the circle. He shows how to solve these kind of problems using some examples and calculating the circumference by substituting the value of radius in the formula. This video gives a good introduction on how to find the circumference of a circle.
For people who are learning basic math skills, this video will show you how to subtract larger numbers which involve borrowing. If the top number on your rightmost digit is smaller than the number before it, you will need to borrow from the column before it. To do this, you will have to cross out the left hand number, subtracting one from its value. You can then add 10 to your original number and continue with your subtraction. If the left hand number is 0 and too small to be borrow from, you...
