Solving SAT Khan Academy Practice Test 2 (Calculator) Math Section

Watch me solve Practice Test 2 (calculator math sections only) from Khan Academy. Tune in to gain clarity on these tough problems!

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[amanyg]

I am taking it on Oct. 5th and have been using your videos for the last two weeks! You are a great explainer and have really helped me so much! Thank you!

[mishaalhussain]

In Q30, you can also use the formula for area of hexagon and get the value of a(length of square), which is an easier way.

[pharelpluviose]

I did number 11 differently and received the same answer:
I divided 349168 (number of words in book) by 250 (number of words he reads per minute) to figure out how long would it take him to read the book in minutes
Then I divided the answer 1396.672 by 60 so that I can convert the minutes into hours
After I converted the minutes to hours, I divided it by 3 (the number of hours he wants to spend per day reading the book)
Also, thank you. You helped me so much with my math. I have gotten so much better.
-Also this is my family member's youtube so disregard the pfp. Loll.

[AdamKentGames]

I was reviewing some problems on this video after taking the khan academy test, for 29 I plugged 3 into the equation y=ax^2+b. I plugged in the values they provided and attempted to see if my simplified answers were either positive, zero, or negative. I recall you said in a previous video positive means 2 real solutions, zero means one real solution, and negative means no solution. Does this method work here?

[anudeepannangi]

I still don't get how to do question 30.

[AdamKentGames]

Around 20:10 for question 21, if the goal is to be within 10 hours of the actual time it will take to complete the project can we write y>100-10 (90)? Could this be compared with x>100 to solve for the final equation?

[yoojimin]

I would love to watch to watch your videos, but I have misophobia and I am really trying but you click your tongue after each question