Solving SAT Khan Academy Practice Test 8 (Calculator) Math Section for SAT Exam

Watch me solve Practice Test 8 SAT Math (Calculator) section from Khan Academy. Tune in to gain clarity on these tough problems!

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Music Videos for math concepts:

[rawanel-doumani]

Mister, for number 33 I guess there is a shorter way But I ain't sure if I am right ....
I think the first equation was multiplied by 3 which yields to the second equation and then 10 is also multiplied by 3 so it becomes 30
Am I right on this way ??

[dbb]

for #36, I drew a line in the middle and split the triangle into two so the 90 degrees became 45 on each side. then i did cos(45) - sin(45) (bc of the corresponding angles they connected to) and got 0. Was my method correct or did i just get lucky?

[akebu]

Any extra tips for how to do the math section fast and correctly?

[Aon...]

For Question #36, there is a quicker way to solve the question. For this example, the question asks for the cosine of angle RSW subtracted by the sine of angle WST. We can imagine that W, being a point on RT, will split the triangle and if we remember that the cosine of one angle is the same value as the sine of another angle, then we can subtract both values giving us either 2a or 0. That was my thought process but I'm not sure if I was correct thinking like that.

[AdamKentGames]

How exactly could you solve for number 23? I can see there’s some exponent manipulation I’m just a little confused on how you get q/4 27:00

[RafiKhan-zcub]

Thanks for the series <3. If it is possible, can make one video solving AP Calculus AB question paper?

[carlarobinson]

great content but i think your approach at number 8 is very time consuming . A simpler approach is if you multiply both sides by x +1. this results in (x+1)^2 = 2. to get rid of the square you can square root both sides resulting in the answer being + or - sqrt of 2.