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...
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...
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...
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.
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 Use the Highest Common Factor method for Factoring
This video teaches you how to convert fraction to decimals in three easy steps. The process of decimal to fraction conversion involves the use of the fundamental rule of fractions; the fraction should be written in its lowest terms.
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.
This how to video describes how to understand and use Tagalog grammar terms properly. The author suggests reading the book "Conversational Tagalog" to help increase your basic understanding of the language. He then covers the use of verbs and other grammatical devices in the Tagalog language. This video is perfect for those who are studying the Tagalog language or for those who need a quick refresher. The video lasts about eight and a half minuets and leaves you with a better understanding of...
I have spent a good portion of this year traveling between cities and various emergent technology conferences and events. Most of these events have been really good, but in terms of augmented and mixed reality, the Augmented World Expo, in its eighth year running, definitely stood above the rest.
While Lyme disease can be disabling, the wrong treatment for the infection can be fatal.
By now, nearly everyone with any type of media access is aware that Sony Pictures Entertainment was hacked on November 24th. Although there can be many interpretations and lessons drawn from this audacious act, there is one indisputable conclusion: it and its ripples across the globe underlines how important hacking has become in our all-digital 21st century. As I have emphasized so many times in this column, hacking is the discipline of the future. From cybercrime to cyber intelligence to cy...
Apple hasn't really changed notification sounds on the iPhone since iOS 7. So how come you hear strange pings, plunks, and doots coming from your iOS device? No, it's not an app you downloaded (although third-party apps can have their own notification sounds). Instead, what you're experiencing is likely the result of updating your iPhone to iOS 13.
A new telemedicine application for the Microsoft HoloLens is promising paramedics and EMTs a new tool for diagnosis and treatment of patients in the field.
Apple released iOS 11.2 beta 3 on Monday to developers, with only a handful of changes over Beta 2. Still, it's always recommended you upgrade to the newest version of iOS, so if you are running any of the previous 11.2 betas, make sure to update.
Respiratory Syncytial Virus (RSV) is the most commonly occurring lower respiratory tract viral infection in young children and usually isn't serious, but in premature infants and babies under six months old, the infection can be severe, and even fatal.
With the British exit from the European Union looming, the UK is looking to the auto industry to help boost their economy and secure jobs through the upcoming years. Today, Business Secretary Greg Clark and Transport Minister John Hayes announced the government investment of $136.7 million (£109.7 million) across 38 different automobile projects, as a part of the Plan for Britain.
While it remains unknown how exactly augmented reality will make its way into the mainstream (the Microsoft HoloLens sitting at $3,000 isn't exactly accessible), many brands have been trying to integrate the tech into their mobile apps, mimicking the success of Snapchat and its popular AR filters. One of those brands going all in on augmented reality is Shazam.
Arsenic occurs naturally in the environment, but it is also one of the most commonly found heavy metals in wastewater, deposited there by inappropriate disposal and arsenical pesticides, for example.
Apple announced the release of their newest Mac OS X version at this year's Worldwide Developer's Conference, and it's called "El Capitan." Like the majestic rock formation it's named after (located within Yosemite National Park), El Capitan promises to emphasize and expand on some of the great features we used on 10.10 Yosemite.
Yesterday, April 7th, it was revealed that the United States White House had been hacked by allegedly Russian hackers. According to reports, the Russian hackers used social engineering/phishing to get a foothold in the U.S. State Department and then pivoted from that system/network to the White House. Although the White House said no confidential information was compromised, the President's appointment calendar and other information were. Attribution or "blame" for the hack was made more diff...
This video demonstrates how to solve algebraic equations of the first degree for the variable, "X"; in other words, the variables contained in these equations are not raised to any power other than one, which is implicit. The video starts out with an example of such an algebraic equation. Before beginning to solve the equation, the video explains the meaning of the equals sign, the definition of an equation, and what a variable is. Next the video explains what is meaning by "solving for X". T...
This video is about using the grouping factoring method. We're using a four term polynomial. There is a even number of terms. We can break them into two groups of 2. The first group of "2" the common factor is "a." The last group, the common factor is "-2b". The reason we use -2b is to assure that what is in the first group is the same as the second group. Because of the distributive property of multiplication over addition, we take the a-2b and put it in one bracket. Multiply by 3x+1. With 6...
Here’s a little tip from FrontierVille Post for those of you who want to help your neighbors out with the new goals.
In a leaked company memo, Snap CEO (and NR30 member) Evan Spiegel has made it clear that the future of the company lies not only augmented reality but also hardware that enables those AR experiences.
The highly anticipated VR headset hasn't been on the market long, but there's an issue that has some consumers, and even government officials, concerned about the Oculus Rift. You probably guessed the issue surrounds privacy and the extensive, not-so-secret way that it's collecting your personal data. The privacy concerns came about as various customers and media outlets took notice of the rather lengthy Terms and Services that pop up once you strap yourself into the Rift headset.
Those of you who have been a part of the Null Byte community for even a short while know that I sincerely and firmly believe that hacking is the most important skill set of the future.
Mobile service providers have an uncomfortably strong grip on the Android platform as a whole. For instance, all four U.S. versions of the Galaxy S6 and S6 Edge play their carrier's obnoxious jingle every time they boot up. You don't get any say in the matter—if you buy your phone from one of the big 4, you're a walking audible billboard.
Although this century is still young, with little fanfare we may have just witnessed the "Hack of the Century." AV software developer Kaspersky of Russia recently announced that they found that some hackers have stolen over $1 billion from banks around the world!
The new HTC One (M8) is a large phone, no doubt about it. Still, with those BoomSound speakers, 5-inch display, and 2600mAh battery, it's a wonder they managed to cram everything in that gorgeous, unibody metal shell. By that logic, it makes sense that the M8 makes the switch from a micro-SIM card to nano-SIM to save as much space as possible.
ATTN: HUMOUR ALERT Jules Verne was an author of immense imagination, who had a profound effect on speculative fiction, whereas Victoria was a stodgy & pampered royal who led a sheltered and traditional existence. Boring, frumpy, grumpy royal! (Photo from The Guardian, UK)
Planting roses can make your home beautiful, but there is more to planting roses than just picking one from your local nursery. Selecting a rose that will stay in scale with the container without much heavy pruning can make all the difference in having healthy, long-lasting, producing rose bushes.
This video tutorial stresses keeping on top of your car's tire alignment. If there is a problem with your tire alignment, it can cause your tires to wear out excessively and uneven. One of the few tips on detecting if your alignment is off is when taking turns. If your car feels like one tire is pulling in a different direction then others, then you might have a problem. They insist on getting your tires alignment checked before it can cause any long term damage to your tires and/or suspensio...
Long term power outages can be an inconvenience. It means that you no longer can heat or cool things. This how to video talks about how to protect your home from a long term power outage, or how to protect your valuables from power loss with a generator.
This is a fun project that doesn't take much in terms of time or resources. You can even make it out of your scrap fabric! Use whatever notions or embellishments you want to create a lovely, Victorian inspired pillow at home.
The term "Gyaru" has an interesting lineage. Coming from the English word "gal," Gyaru denotes women in their teens and twenties who don't care too much about work and dress up trendy, and oftentimes like little girls.
Whether it's research, a school project or term paper, going on an expedition, what have you, having to preserve animal tracks should be a part of your bag of tricks that you can do. But don't just grab some random plaster of paris and just start pouring. Check out this video first and learn how to properly preserve the animal tracks that you find in the wild.
If you're just getting started in photography or if you're looking to learn a little bit more about your camera, then you may have run into the term "Aperture" or "Aperture Values", or those weird number numbers. Aperture is in the lens of your camera and determines how much light enters into the lens itself and helps to determine your focal length. In this video you will get a small lesson on what Aperture is, and how to calculate focal length and aperture values.
Google is always moving one step closer to pretty much controlling everything in the world, in a good way ofcourse! The latest feature added is Google Instant Search, so for anything that you're searching all you have to do is start typing in the search term and Google will immediately begin giving you results on the fly. In this video you will get a quick hands on demo on how to use the new feature.
An ajisai flower is the Japanese term for a hydrangea, a flowering plant which is native to eastern Asia and North and South America. These softly colored shrubs are the inspiration behind Fast Origami's tutorial for making an origami ajisai flower.
