ACT Math Review: 12 Concepts & Strategies You MUST Know For A Perfect 36

[@preppros]

Want the best ACT Math Book ever written and a video course to go with it?? Get a copy of the PrepPros Complete Guide to ACT Math (link in video description) and sign up for my ACT Math Course, which has 30+ hours of videos and over 1,250 practice questions. The free trial has 3 full chapters of the book included: www.preppros.io/act-math-course. Improve your ACT score by 3 points, GUARANTEED! My Ultimate ACT Course has 70+ hours of videos where I teach you everything you need to know to crush the ACT. Get 3 hours of FREE tutoring with me in the Ultimate ACT Course Free Trial (no credit card needed): www.preppros.io/act-course.

[@Yoka_X]

Algebra tip: Always plug numbers from your mind if you dont want to do steps. For example, 14:30 (factorial), let x = 2, and solve using your calculator: 5! * (2-1)!/3! * 2! = 10. Then check choices and see what gives you 10 when x is 2? it will be A. simple. :)

[@ChloeNoever]

Thanks for making this video! Definitely provided a good review of what to expect on the more difficult questions.

[@Kubblixiee_]

Thank you so much for this video!!

[@otisarmyalso]

1ft not 3yards but 3feet 1yard

[@preppros]

Yes. 1 yard = 3 feet. I said that backwards in the video. Thanks for pointing out the mistake.

[@arunvelkumar5459]

18:41 could you also do 217/4 is 54 R 1 and then go back to the original 4 and say it will end in the same digit as 7^1

[@MadeGleez]

' Thank you

[@kanishkpaidimarry9050]

I made the free trial account and I got the course, but I couldn't find the 50 geometry questions

[@preppros]

Yes, the geometry is no longer included in the free trial. We changed it to include the matrices chapter instead.

[@cottoncandycloudsart]

10:19 3 feet is one yard

[@Gaiya-ofearth-of-course]

When I plugged in (170sin(65))/(sin(58)) I got 141.569, not 182. Is there something wrong with my calculator? 9:49

[@preppros]

Your calculator is in the wrong mode. Calculators have 2 modes: radians and degrees. Since we are using degrees in this calculation, you calculator needs to be in degree mode. If it is in radians, it will give you the wrong value.

[@simartbm9783]

@@preppros how do you switch it to degree mode

[@preppros]

It depends on the calculator you have. For most scientific ones, there is a RAD/DEG button that switches the modes. If you have a TI-84, press MODE and then you will see Radian and Degree in the 3rd row. @@simartbm9783

[@daredevil4768]

The last question why is it, not C? Because the 4:8:12 ratio is double and triple so if the shortest side 6 why the next side is not 12? Because 8 double 4. Can you explain plz?

[@preppros]

The 4:8:12 ratio is for the angles not the side lengths. The 4:8:12 ratios tells us that we are looking at a 30-60-90 right triangle. Then, we have to use the proportions of side lengths in a 30-60-90 right triangle to find the side length not the 4:8:12 ratio. Watch me explain it again and then it should make sense.

[@daredevil4768]

@@preppros thx, I understand it now

[@Luh.mxri_]

On the vectors section how does (x-1)(x-2)(x-3) get to 2(1)?

[@Luh.mxri_]

I mean factorials my bad

[@preppros]

It's just changing to 2(1). It's showing a continuation until we get all the way down to 2 x 1. For example, 7 factorial is (7)(6)(5)(4)(3)(2)(1). For the factorial of any number, you start with that number and the subtract 1 repeatedly until get get to 1. And then you multiply all those numbers together.

[@louisjohnson628]

none of these were on the preact I took

[@preppros]

Yes, that is quite possible. The are TONS of math topics tested on the ACT, so any one test will not include all the concepts/topics that can appear. Also, the preACT is an easier version of the ACT compared to the regular ACT, so it is less likely to include the most difficult or advanced math topics.

[@_elaineee_]

cause preact is mostly baby math

[@MadeGleez]

' Thank you