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How To: Use optimization methods in calculus

This video shows how to use optimization methods in calculus. Optimization means finding the maximum or minimum values of a quantity or finding when the maximum or minimum occurs.What quantities are optimized in economics?we want to minimize costs or maximize revenue.First steps in any optimization problem1.Identify the quantity to be optimized i.e., read the problem exactly what is exactly maximized or minimized.2.Identified the feasible domain. This is important because the math we can opti...

How To: Create a scroll text using buttons & actionscript

Tasktutorial teaches you how to create a scrolling text box using buttons and ActionScript in Flash. Create a dynamic text field and then right click and make it scrollable. Create scroll buttons using two simple rectangles. Convert those to buttons using shortcut F8. Click the button and go to Window - ActionScript. Copy the text from the video to make the buttons scroll the text. You can test the movie by going to Control and then Test Movie. This will bring up a new window and you can see ...

How To: Cheat on a Test with an Eraser

There are a few ways to successfully cheat on a test without getting caught, Here's one of them! Like most, office and school supplies will be needed. For this one though all you pretty much need is an eraser. By the time you're done with this hack, you'll be getting straight As for sure.

News: Brain Hacking and Thought-Controlled Quadcopters: The Good and Bad Future of Mind-Reading Devices

Until recently, brainwave-reading devices have pretty much only existed in science fiction. Sure, electroencephalography (EEG), the technology that powers these devices, has been used in medicine and psychiatry since the late 1800s, but diagnosing people's brains and reading their minds are two totally different things. The first EEG headsets available to the public were used mostly in gaming and even in fashion, but in the last few years, they've gotten a little more sophisticated.

How To: Pass a swimming test as a Boy Scout

As a Boy Scout, when the First Class rank is attained, a scout has learned all the basic camping and outdoors skills of a scout. He can fend for himself in the wild, lead others on a hike or campout, set up a camp site, plan and properly prepare meals, and provide first aid for most situations he may encounter. A First Class scout is prepared.

How To: Study for college exams

In this video, we learn how to study for college exams. Start focusing and get ready for the new exam after you take the first one. Just make sure you wind down and relax after that test for a couple of days. This will let your brain rest and give you a well-deserved break from studying. Just make sure you get back on studying so you can do well on your next exam as well. This process will become easier if you practice it with each and every test you have to take. Just remember to study and i...

How To: Use one-tailed and two-tailed tests in statistics

Can't make heads or tails of one- and two-tailed tests? Never fear. This stats lesson will teach you everything you'll need to know. 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. For all of the details, watch this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials.

How To: Cheat on any test using an eraser

In this video, we learn how to cheat on any test using an eraser. First, take your eraser, it should be wide and thick, not one that comes on the top of a pencil. After this, you will cut a hole out of the middle of the eraser. You can do this easily using a straight edge blade. Once finished, you will take a small piece of paper and write down the answers or information you need on it. After this, you will fold the paper up into a tiny square and then place it into the hole in the eraser. Ta...

How To: Cheat on a math test using a calculator

In this tutorial, we learn how to cheat on a math test using a calculator. The first way to cheat is to go into your calculator where the programming is. After this, you can type in the information that you need to store into the calculator and then save it to look at later. The other way to cheat is to write down the information that you need on a small piece of paper. After this, tape it to the inside of your graphing calculator on the shell. If a teacher comes by, simply put the calculator...

How To: Cheat on a test in a short sleeve shirt

In this tutorial, we learn how to cheat on a test in a short sleeve shirt. First, take a piece of paper and cut out a circle from it. Make sure it's small so it can fit in the palm of your hand. After this, write down all the answers or information that you need onto this piece of paper. Once you're finished, take the paper and stick it into the palm of your hand. Make sure the writing is facing out towards you. Then, when you need the information you can simply open up your hand, then close ...

How To: Detect and avoid bad breath

In this tutorial, we learn how to detect and avoid bad breath. If your mouth is very dry, it's going to smell worse and worse. The more oxygen and moisture that you have in your mouth, the less bacteria will be inside it. For people with halitosis, they have a big problem with bad breath. Bacteria lives in your tongue, so you can't scrape them away. You can take a test to see how bad your breath is with a machine. After you do this test, you can learn how to keep more hydrated. Once you have ...

How To: Cheat on a test wearing a long sleeved shirt

In this tutorial, we learn how to cheat on a test wearing a long sleeved shirt. First, you will need to take a white piece of printer paper and see how large you can cut it so it fits comfortably in your hand without being seen. After this, cut the paper to the size you want it. Then, write out the information that you need onto the piece of paper. From here, you can place the paper inside of your long sleeve, with the answers facing up. Then when you need it, simply pull it out from your sle...

How To: Cheat on any test by wearing a fake bandage

In this tutorial, we learn how to cheat on any test by wearing a fake bandage. You will need: a phone, ear buds for your phone, bandages, and transparent tape. First you will need to use your phone to record yourself saying the information you need to hear. Read this off your book or notes so all the information is perfectly correct. Now, plug the ear phone into your phone and then slip it through your sleeve before school. Now place it in your hand and wrap the bandage around it. When you ne...

How To: Become a doctor fast

In this tutorial, we learn how to become a doctor fast. There are many ways to become a doctor, including shortcuts. The first shortcut is if you just got out of high school you can take tests that will test you on knowledge you can study on your own. Just from these you can get credits which will give you extra credit without taking all the time. You can also take summer classes that will get you ahead. If you do this, you will finish your bachelor degree 1.5 years faster. Using these tips y...