Barrett Southworth

1. Community
2. General Khan Academy Questions
3. How Can I Learn All of Sal's Math Tricks

Alright, I don't know when your SAT is, if it's June 1st this year then you won't have time.  First off memorize the unit circle so you can recall it instantly.  Next memorize and practice the trig...

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2. Study Group
3. If I completed the "Trigonometry" under the "Math" category, do I still need to learn the first section of "Precalculus" which is also "trigonometry"?

If there is overlapping videos or exercises, the completed ones get marked completed in the other section as well.  So if you finished Trigonometry under math, any precalculus content that overlapp...

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2. Study Group
3. Please help me with a question about Linear equations from tables

The total capacity of the pool (it's volume with or without water) would be constant.  The amount she started with, there's not enough information supplied for that.  Would require for example know...