Sona

1. Comunidade
2. Feature Requests and General Site Feedback
3. Add an "Add a friend" feature

Not someone from khan but I'd like to respond nonetheless: A) This should probably be posted in Feature requests and General site feedback. B) As for why AI was added first - it's a bit more compli...

1. Comunidade
2. Content Requests and Feedback
3. Calculator Malfunction

You should probably submit a bug report: https://support.khanacademy.org/hc/en-us/sections/360014029731-Submitting-a-Bug-Report-to-Khan-Academy-Support

1. Comunidade
2. Content Requests and Feedback
3. When is Middle School Chemistry coming out? And is it necessary for high school level(I know the basics)?

I think you should be able to manage with the high school level if you're at least a bit persistent. Middle school chem. would definitely be quite beneficial, though. I recommend you just go for it...

1. Comunidade
2. Study Group
3. When three positive integers 𝑎 , a, 𝑏 , b, and 𝑐 c are multiplied together, their product is 100. 100. Suppose 𝑎 < 𝑏 < 𝑐 . a<b<c. In how many ways can the numbers be chosen?

There's probably a better way to solve this (likely with actual combinatorics), but I'd solve it as follows: The trick relies on the fact that we're dealing with multiplication (and positive integ...

1. Comunidade
2. Study Group
3. Equivalent Expressions

If I understand correctly, you'd like more practice with using equivalent expressions in actual equations - e.g. 'simplify 2x + 3y = 2(6y - 3x)' instead of 'which expression is equivalent to 2(3x +...

1. Comunidade
2. Study Group
3. Equivalent Expressions

I don't really see it. Could you please specify what you mean by "Equivalent Expressions is not done this way"; how would you have them done?

1. Comunidade
2. Study Group
3. Help with a trig problem

Could you please specify if you mean 9sin(theta-1) = 7 or 9sin(theta)-1 = 7?

1. Comunidade
2. Study Group
3. 6th gr math

Please be a bit more descriptive: which videos and lessons specifically are you having trouble with? No one here can help if they don't know what the problem is.

1. Comunidade
2. Study Group
3. high-school physic quiz question on Newton's second law

It depends on what you're trying to calculate. Both will give you acceleration, but the question is which acceleration you're calculating. Symbols are what names are to us humans, and just because ...

1. Comunidade
2. Study Group
3. Work and energy problem with friction. Very confused

You've left quite the word salad here, but I'll try to answer your question as best I can nonetheless. I'll start by showing how a way to solve it, and then why your method didn't work: At the top ...