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You use the timestamp by doing it like this: "At 0:20, how does this mnemonic correlate to the sine, cosine, and tangent of the right triangle?" (not an official video just giving an example) the c...

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2. General Khan Academy Questions
3. Time stamps

Simple answer- you can't. The drawing tool is only used to jot things down to help you find the answer. You are not able to solely answer the question using the drawing tools. There are 3 different...

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2. General Khan Academy Questions
3. How do I answer math questions with the drawing tool? Nothing seems to work even when I know the answer.

I don't think you can reset progress, but you can create a new account with no progress. You can also delete an account and make a new one with no progress if you need to by: -clicking your account...

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2. General Khan Academy Questions
3. Reset

You can donate any amount of money to Khan Academy in order to recieve the 2021 and 2022 Patron badges. You have to wait until 2022 and then donate for the 2022 Patron badge, but you can donate i...

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2. General Khan Academy Questions
3. Can I donate 0.12 dollar to own the 2021 and 2022 patrons badges??

Khan Academy marks mastered at 90% of the way. They mark it as mastered but at least according to the goals, it'd be optional for a task goal to be perfected. Perfection is at 100% perfect. If some...

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2. Classroom Tips and Tricks
3. Why do course mastery goals disappear once a student reaches 90 percent?

On Khan Academy, you might see a banner at the top like this: Click on Edit Profile on the right. If you see something that says 'NICKNAME' or 'USERNAME', you're on the right track. The site used...

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2. General Khan Academy Questions
3. How to markup your name