YouTube

A cable of 80 meters (m) is hanging from the top of two poles that are both 50 m from the ground. What is the distance between the two poles, to one decimal place, if the center of the cable is (a) 20 m above ground? (b) 10 m above ground? Chatterjee, Neil, and Bogdan G. Nita. "The hanging cable problem for practical applications." Atlantic Electronic Journal of Mathematics 4.1 (2010). http://euclid.trentu.ca/aejm/V4N1/Chatterjee.V4N1.pdf Careercup Amazon question https://www.careercup.com/question?id=7949664 Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Playlist to watch all videos on MindYourDecisions https://www.youtube.com/playlist?list=UUHnj59g7jezwTy5GeL8EA_g This is the only channel to feature math topics suggested by people around the world. Support the channel on Patreon so we can share the beauty of mathematics and make the world a better place: https://www.patreon.com/mindyourdecisions If you buy from the links below I may receive a commission for sales. This has no effect on the price for you. Show your support! Get a mug, a t-shirt, and more at Teespring, the official site for Mind Your Decisions merchandise: https://teespring.com/stores/mind-your-decisions My Books "The Joy of Game Theory" shows how you can use math to out-think your competition. (rated 4/5 stars on 34 reviews) http://amzn.to/1uQvA20 "The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias" is a handbook that explains the many ways we are biased about decision-making and offers techniques to make smart decisions. (rated 4.6/5 stars on 3 reviews) http://amzn.to/1o3FaAg "Math Puzzles Volume 1" features classic brain teasers and riddles with complete solutions for problems in counting, geometry, probability, and game theory. Volume 1 is rated 4.4/5 stars on 13 reviews. http://amzn.to/1GhUUSH "Math Puzzles Volume 2" is a sequel book with more great problems. (rated 4.5/5 stars on 6 reviews) http://amzn.to/1NKbyCs "Math Puzzles Volume 3" is the third in the series. (rated 4/5 stars on 6 reviews) http://amzn.to/1NKbGlp "40 Paradoxes in Logic, Probability, and Game Theory" contains thought-provoking and counter-intuitive results. (rated 4.4/5 stars on 13 reviews) http://amzn.to/1LOCI4U "The Best Mental Math Tricks" teaches how you can look like a math genius by solving problems in your head (rated 4.8/5 stars on 5 reviews) http://amzn.to/18maAdo "Multiply Numbers By Drawing Lines" This book is a reference guide for my video that has over 1 million views on a geometric method to multiply numbers. (rated 4.4/5 stars on 5 reviews) http://amzn.to/XRm7M4 Connect with me My Blog: https://mindyourdecisions.com/blog/ Twitter: https://twitter.com/preshtalwalkar Facebook: https://www.facebook.com/pages/Mind-Your-Decisions/168446714965 Google+: https://plus.google.com/108336608566588374147/posts Pinterest: https://www.pinterest.com/preshtalwalkar/ Tumblr: https://preshtalwalkar.tumblr.com/ Instagram: https://instagram.com/preshtalwalkar/ Patreon: https://www.patreon.com/mindyourdecisions Newsletter (sent only for big news, like a new book release): http://eepurl.com/KvS0r

We now have a Tumblr: Tumblr: http://numberphile.tumblr.com This paper on ebay: http://www.ebay.co.uk/itm/221197137799? More links & stuff in full description b

YouTube

Watch our video to see two Google engineers demonstrate a mock interview question. After they code, our engineers highlight best practices for interviewing at G

YouTube

Check out Grant’s channel: 3blue1brown: https://www.youtube.com/3blue1brown This video recounts a lecture by Richard Feynman giving an elementary demonstration

YouTube

How to Make Yourself Smarter. Studies have shown that solving riddles and puzzles is exceptionally good for your brain. It sharpens your mind, improves your mem

YouTube

Riddles, logical tasks, brainteasers and puzzles to check your logical skills. Some of them will take a few seconds and others require more time and effort. Onl

YouTube

Practice more problem-solving at https://brilliant.org/TedEd/ Sign up to be emailed the solution to the bonus riddle: https://brilliant.org/tededpoisonapples/

YouTube

Dr Prannoy Roy speaks to one of the greatest minds of our times Professor Manjul Bhargava.He is the winner of the Fields Medal also known as the ‘Mathematics No

YouTube

Free trial at Great Courses Plus: http://ow.ly/7Hh2302dIFt More links & stuff in full description below ↓↓↓ Simon Pampena discusses the famous Question 6 from

YouTube

For more videos visit https://www.youtube.com/playlist?list=PLslHpAcLS1CQbU41jY0VYV3P77hSm-02N https://www.youtube.com/playlist?list=PLslHpAcLS1CRRwkEuSkM8ud1b

YouTube

I didn't solve this problem myself, but I felt better when I learned WolframAlpha couldn't solve it either! But there is a way to solve it using careful mathema

YouTube

On August 24, 2016, astronomers announced the discovery of a potentially habitable planet around our nearest star, Proxima Centauri. Here's what we know about i

YouTube

Happy Pi Day from Carnegie Mellon University! Professor of mathematical sciences Po-Shen Loh explains why Euler’s Equation is the most beautiful equation in mat

YouTube

TabletClass Math http://www.tabletclass.com learn the basics of calculus quickly. This video is designed to introduce calculus concepts for all math students a

YouTube

Media outlets around the world went crazy over a 5th grade math exam question in China. But they all missed the real story! The problem actually dates back to F

YouTube

e (2.718281828...), also known as Euler's number, is a critically important number in mathematics. It forms the basis of the exponential function and the natura

YouTube

To complete a job, it takes: Alice and Bob 2 hours, Alice and Charlie 3 hours, and Bob and Charlie 4 hours. How long will the job take if all 3 work together? M

YouTube

There are 25 mechanical horses and a single racetrack. Each horse completes the track in a pre-programmed time, and the horses all have different finishing time

YouTube

What is the total area of the red spots? The diagram involves a rectangle with dimensions of 10 and 20. Inside the rectangle one of its diagonals is connected.

YouTube

20 questions from a real IQ test. Test your IQ with these questions and see if you can answer them alright. The questions are about spelling, word and sayings,

YouTube

This test question went viral on Twitter and then got coverage in the Baltimore Sun and other mainstream media. But most of the coverage was wrong. This video e

YouTube