Log in stempluc000 3 years agoPosted 3 years ago. Direct link to stempluc000's post “khan academy is a great s...” khan academy is a great site! ive learned a lot • (48 votes) Charlie. N. Dodd. 8 months agoPosted 8 months ago. Direct link to Charlie. N. Dodd.'s post “Yes, Yes It Is.” Yes, Yes It Is. (8 votes) derek.dragon.smith 8 years agoPosted 8 years ago. Direct link to derek.dragon.smith's post “Why is it that when you d...” Why is it that when you do exponents of zero it is always 0 • (27 votes) Darth Vader 6 years agoPosted 6 years ago. Direct link to Darth Vader's post “But do not be confused wi...” But do not be confused with anything to the power of 0 because that is 1 (17 votes) Leana Loranc 6 years agoPosted 6 years ago. Direct link to Leana Loranc's post “In one of the tutorials t...” In one of the tutorials the answer stated -1 to the 0 power is +1. I don't understand why. If you have a -1 and you times it by itself 0 times, wouldn't that leave you with -1? • (11 votes) Nic Laatz 3 years agoPosted 3 years ago. Direct link to Nic Laatz's post “So this is a trick of con...” So this is a trick of conventional logic vs mathematical rules. Don't confuse the absolute value of the event with whether or not the event happened. I'll explain. -1 times itself 0 times means that -1 was in fact multiplied by itself, the event happened, but to an exponent with an absolute value of 0. Therefore the absolute value of -1 is not affected, it remains 1, but the event still happened, so the signs also have to be multiplied, and a -x- is a +, hence the absolute value remains unchanged but the sign changes. I hope this makes sense, it is a difficult concept to explain. (15 votes) Wolf(max) a year agoPosted a year ago. Direct link to Wolf(max)'s post “easy peasy lemon squezy!....” easy peasy lemon squezy!..... • (14 votes) Wolf(max) 10 months agoPosted 10 months ago. Direct link to Wolf(max)'s post “0% chances to fail but 99...” 0% chances to fail but 99.9% chance to score good in these questions! SPRINKLES_4_life a year agoPosted a year ago. Direct link to SPRINKLES_4_life's post “This is so easy!” This is so easy! • (7 votes) him 4 months agoPosted 4 months ago. Direct link to him's post “sometimes it is!!” sometimes it is!! (0 votes) iam a year agoPosted a year ago. Direct link to iam's post “How can I grasp the conce...” How can I grasp the concept of linear equations? • (6 votes) 4541501128 3 years agoPosted 3 years ago. Direct link to 4541501128's post “can you explian more plz” can you explian more plz • (5 votes) Danielle a year agoPosted a year ago. Direct link to Danielle's post “WAaaaaaaaaaaaaaaaaaaaaaaa...” WAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaay Toooooooooooooooooooooooooooooooooooooooooooooooooo • (4 votes) naiathasbudhram a month agoPosted a month ago. Direct link to naiathasbudhram's post “that's why it's called pr...” that's why it's called practice (0 votes) annbaldock 8 months agoPosted 8 months ago. Direct link to annbaldock's post “There’s no sign for multi...” There’s no sign for multiplication • (3 votes) Unknown 5 months agoPosted 5 months ago. Direct link to Unknown's post “There doesn't need to be....” There doesn't need to be. If it is asking you to solve 1 to the 2nd power, you won't type 1x1, you'll type 1, because 1x1 is equal to 1. If it is asking you what 2 to the 2nd power is, type 4, not 2x2. (2 votes) 23mklema0910 8 years agoPosted 8 years ago. Direct link to 23mklema0910's post “Khan Academy makes everyt...” Khan Academy makes everything easier to learn especially math. • (3 votes)Want to join the conversation?
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FAQs
Is Khan Academy 100% free? ›
It is 100% free, with no ads and no in-app purchases. Khan Academy Kids is available on iTunes, Google Play, and the Amazon App store.
How do you do squaring numbers? ›The square term is always represented by a number raised to the power of 2. For example, the square of 6 is 6 multiplied by 6, i.e., 6×6 = 62 = 36. Thus, to find the square of single-digit numbers, we can simply multiply them by itself.
Where are radicals covered on Khan Academy? ›Unit 12: Radical equations & functions
This topic covers: Solving radical equations.
Trusted content
Created by experts, Khan Academy's library of trusted, standards-aligned practice and lessons covers math K-12 through early college, grammar, science, history, AP®, SAT®, and more. It's all free for learners and teachers.
Text-to-speech is also available on the Khan Academy iOS mobile app version v8. 0.0, mobile web, and desktop web. At this time, Text-to-speech is not available on the Khan Academy Android Mobile App.
How much Khan Academy should I do a day? ›Keep things simple and set a goal of 2-3 hours of learning per day. Start with your child reading an hour a day and doing math practice an hour a day (and this time doesn't have to be all at once).
What is the 345 squaring rule? ›To get a perfectly square corner, you want to aim for a measurement ratio of 3:4:5. In other words, you want a three-foot length on your straight line, a four-foot length on your perpendicular line, and a five-foot length across. If all three measurements are correct, you'll have a perfectly square corner.
How to square easily? ›Method 1: Multiplication by Itself
Multiplying by itself means to find the squares of the number we just multiply the number with itself, i.e. the square of any number a is (a)2 then it is calculated as (a)2 = a × a. Square of some numbers between 1 to 30 using the multiplication by itself method is, (4)2 = 4 × 4 = 16.
Khan Academy is a 501(c)(3) non-profit organization, mostly funded by donations from philanthropic organizations.
What is this √? ›The square root symbol or square root sign is a mathematical symbol, denoted by '√'. This symbol is known as radical, in words. In Maths, you may have learned about different kinds of symbols, which are used to perform arithmetic operations. The root symbol (√ ) is used to represent the square root of any number.
Is radical algebra 1 or 2? ›
Radical equations (Algebra 1, Radical expressions) – Mathplanet.
Is Khan Academy good or bad? ›Truth be told, most of the student Khan Academy reviews that concern the content are rather positive. It seems that the majority of students love the courses available on Khan Academy, as well as the information they provide, and everything in between.
Is math red or blue? ›According to the Science Survey, 54.2% say math is blue/ 41% say English is red while 25.8% say it's History. And of course, 78.5% say science is green. But do we here at the Mass Media studio believe that?
What is better than Khan Academy for math? ›Alternatives to Khan Academy include Coursera, Codecademy, Udemy tutoring, etc. Overall comparison of features leads to the answer that Coursera is the best Khan Academy alternative in 2024 for you to try. It has a vast variety of technical and non technical courses available.
Is Khan Academy app totally free? ›With our iOS and Android apps, you can learn anything on just-about any device! They're all 100% free, with no in-app purchases or subscriptions.
Does Khan Academy actually need money? ›Khan Academy is an IRS-recognized 501(c)3 not-for-profit (nonprofit) organization. Khan Academy materials are available for free at www.khanacademy.org. The organization is supported through the generosity of donors and grants.
Is Khan Academy Kids completely free? ›Khan Academy Kids is a free educational app for children ages 2-8. The Khan Kids library includes thousands of kids books, reading games, and more. Kodi the Bear and her friends at the Kids' Club provide a safe and fun way for kids to learn and play. Best of all, Khan Kids is 100% free with no ads or subscriptions.
Can Khan Academy be used as a full curriculum? ›You can use our personalized practice, alongside the Eureka Math/EngageNY curriculum, for grades three to eight, and the Illustrative Mathematics curriculum for grades six to eight. Beyond Math, we also have full courses with learning and practice in Science, Social Studies, and the Humanities.