Example of Rational Expressions in Word Problems

First off, don't be frustrated. YOU CAN DO IT! Contrary to the message in the image above, it's NOT over. It's just beginning. And when it comes to solving the New York Times crossword puzzle, the old cliche does apply: practice makes perfect. I've read quite a few books and ...more

Hollywood has already proven that it's on board with augmented reality, with examples ranging from Avengers: Infinity War to Ralph Breaks the Internet. But one startup wants to make the augmented reality content that's being used to promote TV and film entertainment smarter. ...more

Apple released iOS 13.0 on Sept. 19 and announced on the same day the release of iOS 13.1 on Sept. 30. But that deadline was pushed up to Sept. 24, and that's why we have 13.1 just five days after 13.0. But that's good news since we don't have to wait any longer for some of th ...more

Greetings all. Today I intend to append a new series to my mini-collection of posts. This series will consist of informative guides for the purpose of depicting certain aspects of the White Hat profession that I believe are of profound importance. Furthermore, I will keep thi ...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

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

Learn how to solve geometry word problems. For example, how would you solve the following problem? A prism has a square base a prism has a square base with a side of 3 the volume is 90 a square pyramid has the same width, base and height as the pyramid, what is the volume? V ...more

The developer community has already made some incredibly quick progress on implementing assemblers, interpreters, and emulators for the proposed virtual computer in 0x10c, Notch's latest game. But the truth is that the majority of programmers out there couldn't be bothered wit ...more

We always have so many file formats in our computer, we use MS Word to view .doc files, MS Excel to view .xls files, Adobe Reader to view PDF files, image viewers to view all kinds of image formats, and browser to view html files. It seems we need to install many programs to v ...more

The aging and maturity of video games as a medium has lead to some unfortunate consequences. One of these, perhaps drawn from the film industry, is the spate of remakes that has overtaken the game market over the last few years. It hasn't been as bad as the remakeorama trend i ...more

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 i ...more

“On this day he had lived with that feeling, with death breathing right in his face like the hot wind from a grenade across the street, for moment after moment after moment, for three hours or more. The only thing he could compare it to was the feeling he found sometimes when ...more

The last iOS software update was a modest one, but iOS 17.4 has a lot more for your iPhone, including changes to emoji, Podcasts, security, Safari, widgets, Apple Cash, CarPlay, and more. Many of the exciting changes in iOS 17.4, as well as iPadOS 17.4, apply to users in the ...more

While it's not usually the first thing everyone looks at after installing a new iOS software update, I'd give the new accessibility features on your iPhone priority attention because there are some highly valuable tools that even users without disabilities can enjoy. Of cours ...more

It can be very frustrating: You open your Messages app, send an iMessage, and then see that dreaded red exclamation point or horrible green SMS bubble. At this point, you may be curious whether it's just your iPhone or whether iMessage is broken for everyone, but how do you fi ...more

When Microsoft unveiled Mesh a couple of weeks ago, the move revealed a major part of Microsoft's next steps toward dominating the augmented reality space, particularly with regard to enterprise customers. But aside from the general details contained in the announcement, what ...more

A rather exciting development has recently surfaced in the jailbreaking scene for iPhone. The Checkm8 bootrom exploit was shown off to the public by axi0mX, which made way for the undefeatable Checkra1n jailbreak tool. With it, you can freely jailbreak a variety of older iPhon ...more

Individually addressable LEDs, also commonly called "NeoPixels" after the popular Adafruit product, are a bright and colorful way to get started with basic Python programming. With an inexpensive ESP8266 or ESP32 microcontroller, it's easy to get started programming your own h ...more

Cases and stickers are always great, but they aren't the only way to customize an iPhone. The software on your device is full of customization options, from a better-looking home screen and cooler lock screen wallpapers to app icon changes and a system-wide dark mode. There's ...more

Indian startup Dimension NXG is launching augmented reality headsets into India's consumer market with a bold idea: focusing on immersive computing in education on the high-end. The plan is to give a new kind of AR headset to schoolchildren in remote Indian villages, starting ...more

Apple's iOS 13 has been available for beta testing since June, and the stable release pushed out to everyone on Thursday, Sept. 19. To help you make the most out of iOS 13 for iPhone, we've rounded up everything you'll want to know, whether a colossal feature, small settings c ...more

Rooting. As an Android user, I'm sure you've heard the word once or twice. According to Kaspersky, 7.6% of all Android users root — but for the 92.4% who don't, we wanted to talk to you. Rooting allows you to remove barriers and open Android to a level of unprecedented contro ...more

For modders, there are few tools more important than TWRP. TeamWin's custom recovery makes flashing mods like Magisk, Xposed, and custom ROMs incredibly easy, and it lets you root your phone at the press of a button. On top of that, it can make complete backups of your phone i ...more

Look, tests are no fun, and doing poorly on them is rarely an option. Whether you're studious or a slacker, everyone needs a little boost now and again. While students have found ways to cheat as long as tests have existed, the invention of smartphones has greatly enhanced the ...more

Developers creating login systems know better than to store passwords in plain text, usually storing hashes of a password to prevent storing the credentials in a way a hacker could steal. Due to the way hashes work, not all are created equal. Some are more vulnerable than othe ...more

This year's big iPhone update, iOS 12, aims to solve many of the issues that arose during iOS 11's controversial, buggy tenure. With that in mind, it may be tempting to jump on board the new software immediately and leave iOS 11 in the dust for good. Here are some reasons why ...more

The Play Store hasn't been the most secure place for apps lately. A quick Google search for "Play Store malware" will give you a taste of some of the malicious apps that snuck their way onto Android's official app store. Google is aware of the problem and they're tying to fix ...more

Around this time in 2016, the predictions for the next year had reached something of a consensus: 2017 would be the year of augmented reality. But a funny thing happened on the way to the future — nothing much, really. At least not for the first half of the year. It seemed cl ...more

Augmented reality is beginning to leak out into the mainstream world. This is thanks, in part, to ARKit and ARCore. These releases turned the current smartphones owned by millions of Apple and Android users into AR-capable machines. And while there are definitely some awesome ...more

Just a day after the release of the iPhone X, the music-meets-comedy pastime known as Animoji Karaoke quickly emerged as one of the popular (albeit frivolous) features used to justify spending $1,000 for Apple's newest smartphone. Now, that brilliant idea has been taken to th ...more

Thanks to Metaverse, it has never been this easy to create your own AR game. The platform gives users a web-based tool for building interactive AR experiences, with no coding knowledge necessary. Via a link or QR code, users can then share their project with others, who can v ...more

Bed bugs are parasites not yet known to spread disease — but they cause plenty of irritation. As scientists and landlords search for new ways to deal with the pests, a new study examines how we can deter bed bugs without so many chemicals. While they don't infect us with anyt ...more

If your phone has an unlocked bootloader, you can use Fastboot commands to flash factory images. That may sound like a bunch of technical jargon, but when it comes down to it, this is the best method for updating a rooted device, fixing a bricked phone, reverting to stock, or ...more

Greetings aspiring hackers. I have observed an increasing number of questions, both here on Null-Byte and on other forums, regarding the decision of which USB wireless network adapter to pick from when performing Wi-Fi hacks. So in today's guide I will be tackling this dilemm ...more

Sooner or later, you're going to come across a person at work that you don't like—or someone that doesn't like you. This can result in uncomfortable tension, insulting gossip, and a disrespectful attitude, to name just a few of the negatives. But it doesn't have to be that way ...more

Welcome back, my hacker novitiates! A short while ago, I introduced you to regular expressions. Regular expressions are a language that is particularly useful for finding complex text patterns in streams of data. Although first developed for Perl, regular expressions are use ...more

I am an English major physically allergic to all algebraic formulas, so you're unlikely to get any help from me when it comes to solving any expressions. But in the glorious technological age we live in, there are plenty of apps that actually make math and problem solving fun, ...more