See how to unpack and solve a word problem containing radical equations with this free video math lesson from Internet pedagogical superstar Simon Khan. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belo ...more
This math lesson is designed to provide middle school teachers with free resources for teaching linear equations. Students can use this free resource to better understand how to solve simple equations while preparing for the upcoming CRCT test. The above video demonstrates ho ...more
In this video, the instructor demonstrates how to solve radical equations and inequalities. If you have an equation that contains radicals, re-,arrange the equation so that all the radicals are on one side and the integers are on the other side. To cancel a square root from an ...more
Having trouble with word problems in algebra? Watch this video to clear a few concepts as well as to learn how to systematically tackle word problems in exams. As explained in the video, the solution to any algebraic problem can be found by using the following 5 steps: 1) De ...more
You can solve any proportion using the fundamental rule of proportions. First you must build the proportion if you are given a word problem. Decide using logic whether it is a direct proportion (more on one side means more on the other). If so, find the parts of the equation t ...more
Spotlight, Apple's system-wide search feature, lets you search for apps, contacts, messages, webpages, music, notes, and other content that's on and off your iPhone. On iOS, it's known as "Search," and you can access it by swiping your home screen down or swiping open the Toda ...more
Need help figuring out how to unpack and solve word problems involving quadratic equations? Learn how with this free video algebra lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodi ...more
There is no iPad version of Apple's Calculator app, so you won't find it on your Home Screen, in your App Library, or as a shortcut in the Control Center. But that doesn't mean your iPad doesn't have an official calculator. Before the first iPad in 2010, Apple's development t ...more
In this Education video tutorial you will learn how to solve a word problem that involves proportions. To solve such problems you got to express the scenario in proportions. For example, in the problem, ‘Jacob ran 10 miles in 80 minutes’; this rate can be expressed as 10miles/ ...more
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this beginning-algebra lesson on word problems (or applications) with equations of rational expressions. If you like math, and you like English, than what's the problem?
Solving linear equations in algebra is done with multiplication, division, or reciprocals. Using reciprocals, or multiplicative inverse, as well as multiplying and dividing with certain formulas, you can solve linear equation word problems. Could you use a little help figuring ...more
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 examp ...more
This video shows the method to change a word problem into algebra and to identify rational numbers among a group of numbers. In the first part of the video we take a word problem namely - The product of 9 and seven, less than a number. 9 multiplied by something can be expresse ...more
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 ...more
In this math tutorial, you will learn how to simplify square roots with product and quotient rules. To begin, you will need to multiply the square roots so that the two square roots in your equation are reduced down into one. The rule for non-negative "A" and "B" is that the s ...more
In this video the instructor teaches about direct and inverse variation. Two variables x and y are said to be in direct variation with each other if you can write them in the form y = K * x. The value of y varies directly corresponding to the value of x. Y is said to be direct ...more
The video Understand The Basics of Velocity & Acceleration (301974) is a tutorial into the physics of position, velocity and acceleration. Each concepts are explained in terms of physical properties for the purpose of mathematical equations. Acceleration for instance is the in ...more
In this math lesson you will learn how to solve a system of equations. Watch the following video to learn how to translate a word problem into a system of linear equations. Two linear equations considered in the same time form a system of linear equations. A system of linear ...more
What is a Data Structure? When we think of a "structure" we often think of architecture, but data also often has structure. There are many different types of data structures: arrays, graphs, queues, stacks, and so on. We use these structures in order to be able to effectively ...more
Last week's challenge brought up a good question (thanks Lisa) regarding the functionality of the Official Scrabble Players Dictionary, 4th Edition, both online and in print form. The word TACTICAL was the answer to the first puzzle in that challenge, but when you search for t ...more
BioShock is one of the best games of all time. It combines FPS gameplay with RPG storytelling and supports multiple systems better than any other game, that much is for sure. And the setting of its amazing story is a place called Rapture, a high-tech libertarian colony at the ...more
One of the things I consistently notice amongst fellow internet users is that many people don't know how to properly search for stuff. Google may have served you well in the past, but I'm going to share a few little tricks with you to help make your search results even spiffie ...more
As an avid reader, I come across a plethora of words I don't know, but my iPhone is always right there to help figure out their meanings. If you're reading an article or email directly on your iOS device, just highlight the word in question and tap on the "Define" option. If ...more
Not content with bringing the first untethered mixed reality headset to market, Microsoft wants to expand their Windows Holographic operating system beyond HoloLens into vastly more robust technologies. Through partnerships with other hardware manufacturers, Microsoft is hopi ...more
Hello fellow Nullbytiens, I'm Washu, a long time commenter but first time poster. Today we'll be making an IRC bot, if you haven't seen OTW's post about the new IRC channel I would encourage you to go check it out. He does a good job at explaining what IRC is and how to get se ...more
Samsung has legions of loyal fans, and for good reason — their Galaxy S lineup ticks so many boxes that it would be a downgrade to switch to any other phone. Though if you're still rocking an older model like the Galaxy S7 Edge, the all-new Galaxy S9 can tick all the same boxe ...more
The Calculator app is probably one of Apple's most-used iPhone apps, yet I always meet people who don't know all the little tricks there are to using it more efficiently. You may know most of them, but there's a chance you don't or at least forget about some of them. What a " ...more
Since launching Google Lens as a a Pixel-exclusive feature in 2017, Google has not only expanded the availability of the tool to Android and iOS, but also built upon its functionality. Now, in addition to translator, tip calculator, personal shopper, and tour guide, Google has ...more
In the aftermath of the unindicted police killings of Michael Brown and Eric Garner, we've been told that the system worked as intended. When our legal system's outcome is at conflict with what a majority of Americans believe is just, it's clear that some changes are needed. B ...more