🎓 Join our FREE weekly newsletter: spikenews.substack.com/subscribe 👉 Learn secrets to scoring 1500+ on the SAT 👉 Access a curated list of opportunities, scholarships, and summer programs 👉 Get college admissions advice (extracurriculars, essays, etc.) 👉 Discover tips on studying, productivity, and student life-plus much more! __________________________________________________________________________________________________
Ok for the first one. I also didn’t get it first try 🥲 but I learned. They said 270 for the first day. 135 added for each ADDITIONAL day. Meaning that if x=4 then the first day (270) + (135x3)-> for additional days. How you can visualize this is: 270 +135(x-1) = 270 +135x -135= 135x +135
@@rent9624 For the first day ,it can ONLY be 270 so it can not be c since that would be over 270 for the first day,when x =1 , hence its d. You can check it by inserting x=1,the ans will be 270.
watch this and do the problems before he does them. this is a really good video for basic math review (chances are you just need to brush off the dust). If you're short on time, skip how he does the problem if you get it right and understand why. my math score just went from a 710 to an 800 (in like an hour) with this trust me its great.
For the 2nd question, Just run a regression. Make a table put the value and then y~a.b^x then define the function f(x)=whatever values you get for a and b. Then lastly just check the values f(5) or f(11) until you get 5.12 x 10^8. I suggest this only if you didn't understand the video explanation (me). So I just solved it on Desmos
@@omazaib2917 if you think you need to review your high school math basics, then do watch it. Otherwise solve the problems before him to see if you got the answer rightly yourself
The problem which gives you the vertex and asks you to find a + b + c can actually be simplified down a bit. Since the vertex is at a negative y and the equation has 2 real solutions, the graph is going to be curved up (or in other words, a is guaranteed to be positive), thus no value will exist beneath that y-coordinate (-14). In addition, a + b + c can just be seen as ax^2 + bx + c when x=1, because a(1)^2 + b(1) + c is just a + b + c (anything multiplied by 1 is 1). Because a + b + c lies on the curve of our function and no value can exist below -14 (or at -14, since that is the vertex value (x=9), we are looking for x=1), the only answer choice possible is D or -12.
thanks a lot for this video it really helped with some of the concepts i didn't understand :) only thing that would make this video 10x better would be if u just showed us how to use desmos for almost any of these problems because it would save a ton of time
The very last triangle problem can also be solved by using the distance formula to solve specifically only for the height and base of the triangle and after finding those two values which are √37 and √65 respectively, you can subsequently find the area of the triangle which is approximately 24.5.
@@pannanangha9885 Most likely because it results in numbers with the radicals in them but the method with the rectangle used whole integers resulting in perfect numbers with no recurring decimals. It's like fractions versus decimals. A decimal can give you a recurring decimal whereas a fraction gives you a whole number.
OH NO! 1:25:45 You are showing the ELECTRIC FLUX question. SAT created this question for people to do unnecessary work. They gave the formula for electric flux as the product of electric field and surface area. They also gave the electric field as 29 v/m. These are all dummy information. All you have to do for this question is ratio the large area to the total area. 4640 (9x/10x) = 4176
Thank you for the video! Any tips on how to improve my math skills? Such as improving geometry skills. Questions like sin cos tan, or questions requiring angles and degrees. These I have trouble with.
Hey! For geometry, get your formulas down. If you have a conceptual error, target it with Khan Academy videos. Then, spam practice Qs from our review videos for geometry until you feel confident!!
Best of luck! With the exam in 3 days, here are my best 10 tips to optimize your chances for scoring your maximum potential on the SAT! th-cam.com/video/fqvQDqdhAfI/w-d-xo.html
10:22 I don’t understand how u can negate the x variable because both sides have different values without the x as there is a different number of x on each side which would make it unequal?
Hey, no worries! If you want, check our Digital SAT Math playlist. It’s the same questions but broken up into individual videos - making it easier to process!
for question at 58:25 and any others asking to make least possible value for k or other - the value that makes it 0 was 49, and answer was 50, but could answer also be 49.1? because this is technically the least possible value that will make discriminant a negative. Or should these be answered with whole numbers?
Started reviewing this to help my daughter prep for her SAT. Sure it’s been 40+ years since I was in school but you already lost me on question number 1. I do not know how you got answer D and not C. That makes zero sense to me. God help the kids taking these tests now.
The SAT makes it tricky! I suggest encouraging your daughter to take a free practice test on the College Board websites (via Bluebook) as a diagnostic. Then, address conceptual issues/do practice problems in the areas needed for improvement.
When we calculate the cost of the week with $135 a day, that means that we are paying only $135 for the first day. Since the problem states that we need to pay $270 only on the FIRST DAY, (we already paid $135 for that day) you subtract $135 from $270 meaning that we need to pay $135 for the first day. Answer choice C is incorrect because that means on the first day we are paying $135 + an additional $270 which is OVER only $270 on the first day, so it is wrong. Hopefully this helps! :)
I got it wrong, but the easiest way I thought about is plug 1 for x into each equation in answer choices. (1 for x means 1st day) and notice how C doesnt give 270 as the first day price and instead its higher, which is wrong considering the question. Because question states that on day 1 $270 is paid means only answer D gets us 270 for y when plugged 1 for x
thank u so much and i also have a question, i did the bluebook practice test 6 and i got a 1310, do you think test6 is good for prep or no,and can you do another prediction video
Hey, yes it’s widely regarded that PT 6 is accurate. I may be able to post another prediction video, but no guarantees. However, I think this video will help you EVEN MORE! 10 EASY Hacks to Increase SAT Score 100+ Points (NO STUDYING!) th-cam.com/video/fqvQDqdhAfI/w-d-xo.html
I dont know but i feel like theese questions are way easier than blue book cause like these ones i can do them but the ones in blue book makes me think if i am cooked
If you put a slider on p, Desmos would be solving for x. That is not going to do you any good. You can try setting x = 1 (separate line) and change - 155 of the second equation to m. Desmos is going to solve for m. Slide p and monitor m. The value of p that gives you m = -155 is your answer. Have fun abusing Desmos.
at 1:53:51 can you choose any value for a? I chose positive 3 but after adding the a and b values (3x^2 -12x -63), i got 3-12 which is -9. im confused since i thought i could choose any integer value greater than 1 but 3 doesnt seem to work
@@PrepworksEducation so if i get a question similar to this, to make sure i get the answer as quick as possible, i should just try the value right above/below the inequality the question states?
a(x - 7)(x + 3) ax^2 - 4ax - 21a Thus, (a+b) = a - 4a = -3a (a+b) can take any value for integer “a” that is greater than one. a = 2, 3, 4, etc So (a+b) can have -6, -9, -12, -15, etc You pick from the answer choices. If the question asks for max value of (a+b), the answer is -6. They cannot ask for least possible value.
Hey, there is a mix of some easy/medium/hard questions. Have you taken any of the SAT Bluebook practice tests? Those are similar to the difficulty of the real thing. For your Saturday exam, perhaps these last minute hacks/tips will help: th-cam.com/video/fqvQDqdhAfI/w-d-xo.html (no extra studying!)
I feel like the questions in this video are harder than in the actual test. Especially in the first math module which is WAY easier than this. just did a practice test today haha
When we calculate the cost of the week with $135 a day, that means that we are paying only $135 for the first day. Since the problem states that we need to pay $270 only on the FIRST DAY, (we already paid $135 for that day) you subtract $135 from $270 meaning that we need to pay $135 for the first day. Answer choice C is incorrect because that means on the first day we are paying $135 + an additional $270 which is OVER only $270 on the first day, so it is wrong. Hopefully this helps! :)
Indeed! However, being able to practice the foundational skills will help on those last M2 questions. On the actual DSAT if you can, try and solve all the easy Qs w/ desmos as to not waste time!
Because the radical is a square root so automatically assume that means 2*radical(x^5). It’s like the root is always 2 unless expressed otherwise like in the bottom expression
quick question for the biking and running question since they’re represented by different variables why wouldn’t it be 200=5x+20y instead of 200=5x+20x? Sorry for the late comment.
Because they are running/biking for different times. The coefficients represent the speed while the variables represent the time at that speed. If I’m running for 5 minutes and biking for 10, I’m going different speeds AND different times on each (I haven’t seen the exact question so I’m just assuming, reply with a time stamp if you are still confused)
@@raidernathan4209 Ok thanks. Sorry, i’m still a bit confused. So since they’re going different speeds with different times we would only need to use one variable?
Hi, yes unfortunately a select few are from the practice tests. You can practice questions that are not on the practice tests by going to the Collegeboard educator bank
Hey, sure. x * x * sqrt 3 = 1089 * sqrt 3 is the same as: x^2 * sqrt 3 = 1089 * sqrt 3 divide both sides by sqrt 3 x^2 = 1089 take the sqrt of both sides x = 33 (we take the principal square root on the SAT, so the positive value is the answer) hope this helped!
If you take (2.5 * 10^5)(2 ^ (n-1) ) = 5.12 * 10^8 and divide by (2.5 * 10^5) on both sides you get 2 ^ (n-1) = (5.12 * 10^8) / (2.5 * 10^5). Then you can use the log function with a base on the desmos graphing calculator (bring up the keyboard, click functions, and find log a) to do log base 2 of ( (5.12 * 10^8) / (2.5 * 10^5) ) = x -1 and then see where the line intersects the x-axis for the value of n
Hey, we are only interested in the “x” term. Think about it like this, here’s an example via quadratic formula: ax^2 + bx + c The (+8) is just a constant, c, which does not matter for our “x” value of b.
Does the DSAT allow you to have and write on a piece of paper? I want to write my work down physically so I can keep track and avoid any mistakes possible but I don't know if they allow that on the test day. Can anyone tell me if they allow you paper and pencil?
@@Aditya-su4qy Linear means straight line. 2 4 8 16 32 Is not a straight line This is a straight line 2 4 6 8 10 Increment of 2 Multiplication is exponential
@@Aditya-su4qy yes kinda, it is 2x, so it is based on whatever x is. X changes as the line progresses so it's 2 times the previous x, since x increases like that, the equation increases like that making it exponenetial
Hi, does this video cover every possible SAT topic, I just want to know because I’m really nervous 😢, I studied but I still feel like if I see some questions I might just blank out
Hi! I covered pretty much the most important ones. However, the SAT can always “spin” the concepts in a weird way so be prepared. Also, perhaps taking a look at mean, median, mode, standard deviation, or statistical analysis in general.
Hey! Yes it does… the one thing I left out were statistical reasoning Qs. I did not think it was worth putting a question like, calculate the mean of 1, 2, 3, 4, 5…
🎓 Join our FREE weekly newsletter: spikenews.substack.com/subscribe
👉 Learn secrets to scoring 1500+ on the SAT
👉 Access a curated list of opportunities, scholarships, and summer programs
👉 Get college admissions advice (extracurriculars, essays, etc.)
👉 Discover tips on studying, productivity, and student life-plus much more!
__________________________________________________________________________________________________
1st question humbled me quick
There’s some tough ones in there, don’t give up!
It’s not making sense to me
@@rent9624 same
Ok for the first one. I also didn’t get it first try 🥲 but I learned.
They said 270 for the first day. 135 added for each ADDITIONAL day. Meaning that if x=4 then the first day (270) + (135x3)-> for additional days.
How you can visualize this is:
270 +135(x-1) = 270 +135x -135= 135x +135
@@rent9624 For the first day ,it can ONLY be 270 so it can not be c since that would be over 270 for the first day,when x =1 , hence its d. You can check it by inserting x=1,the ans will be 270.
Just leaving this here to come back to. Y'all like it to infinity
This was so helpful wish me luck on saturday!
You can do it!
All the best!
Good luck to both of you!
Best of luck . You will score 1220
Doesn't matter what score you get as long as you're happy with it!
Started prep a week ago, December 7th SAT is my 2nd sat retake and my last chance as I’m senior. This video is helpful, thanks so much😅
Best of luck!
@@NassRLSS you’re not alone😭🙏
What was your first score?
@@NassRLSS me too bruh last math killed me, and I’m in the top 1 percent at my school of 2000
thank you so much, am taking sat in august will update w my score
1420 guys
No problem! Best of luck!!!
how did your test go?
What’s ur score man
@@an0n1482 waht did you get
yo bro
watch this and do the problems before he does them. this is a really good video for basic math review (chances are you just need to brush off the dust). If you're short on time, skip how he does the problem if you get it right and understand why. my math score just went from a 710 to an 800 (in like an hour) with this trust me its great.
Amazing progress! 🙌
For the 2nd question, Just run a regression. Make a table put the value and then y~a.b^x then define the function f(x)=whatever values you get for a and b. Then lastly just check the values f(5) or f(11) until you get 5.12 x 10^8. I suggest this only if you didn't understand the video explanation (me). So I just solved it on Desmos
Can you explain the y~ab^x more I’m having trouble with putting that on desmos
@@Ii-yq6rx put y1~ a times b to the power of x1 (y1~ab^x1)
please can you send the link?
this dude actually slaps on explaining the problems. THANKS MAN!!
No problem :)
1:25:40 you could recognize that 18y = 4x + 2 and hy = 4x - 5. Since both slopes are parallel, h = 18 in order to keep it parallel
hey can u pls tell if this video is worth watching?
@@omazaib2917 if you think you need to review your high school math basics, then do watch it. Otherwise solve the problems before him to see if you got the answer rightly yourself
Having my exam tomorrow and im half way through the video, very helpful tips
wish me luck
Best of luck!!
Taking it in December wish me luck I’ll let yall know pray for me 🥲
Best of luck!
@@jadebaynes2332 same😪
@@jadebaynes2332 same here 🔥
same im so cooked
@@lyre9949 im soo cooked
Ahh I wanted a video exactly like this!thank you so much!
The stars align! No problem!
i got the sat in 4 days. i got a 1028 on my first practice test i gotta clutch up rn.
Best of luck!
Me too but one day 😢
what did u get ?
what u got
where do u take your practice tests?
The problem which gives you the vertex and asks you to find a + b + c can actually be simplified down a bit. Since the vertex is at a negative y and the equation has 2 real solutions, the graph is going to be curved up (or in other words, a is guaranteed to be positive), thus no value will exist beneath that y-coordinate (-14). In addition, a + b + c can just be seen as ax^2 + bx + c when x=1, because a(1)^2 + b(1) + c is just a + b + c (anything multiplied by 1 is 1). Because a + b + c lies on the curve of our function and no value can exist below -14 (or at -14, since that is the vertex value (x=9), we are looking for x=1), the only answer choice possible is D or -12.
Great way to save time!
nice bro!! i solved it that way too
oh my god you are a lifesaver forever grateful
🫡
thank you so much! this rlly helped me understand the questions and feel more confident abt the august SAT. wish me luck
No problem! Good luck!
This video was so helpful. Thank you. I have my SAT tomorrow so hopefully it pays off. Thanks for your help man.
No problem! Best of luck!
how much did you got?
For the question at 42:00 I got CE = 24 because I set up a ratio and did 6/8 = 18/x
Thanks so much, hopefully I get a good score on Saturday
No problem! Best of luck!!
Thanks for your time to help us!
No problem!
thanks a lot for this video it really helped with some of the concepts i didn't understand :)
only thing that would make this video 10x better would be if u just showed us how to use desmos for almost any of these problems because it would save a ton of time
Hey, thank you for the feedback! I think desmos is great and it would definitely be the most efficient way to solve tons of these problems.
Thank you very much. It is the most useful video on this platform.
Appreciate it! Glad it helped :)
Thank you so much wish me luck for this august!!
No problem, BEST of luck!!
The very last triangle problem can also be solved by using the distance formula to solve specifically only for the height and base of the triangle and after finding those two values which are √37 and √65 respectively, you can subsequently find the area of the triangle which is approximately 24.5.
Why does using the distance formula yield an irrational answer(24.52039) but the other method is exact(24.52)?
@@pannanangha9885 Most likely because it results in numbers with the radicals in them but the method with the rectangle used whole integers resulting in perfect numbers with no recurring decimals. It's like fractions versus decimals. A decimal can give you a recurring decimal whereas a fraction gives you a whole number.
Saturday here i come🥲
Good luck!
HOW DID IT GO?
appreciate this, wish you would say more about desmos as a third of the questions could have been solved by desmos
Fair point!
this perfect, exactly what I was looking for. thank you
❤️🫡
I love how you like everyone’s comment
You deserve a heart as well ❤️
Amazing keep up the amazing work😁😁😁 I am also taking the SAT this August
Thank you! Good luck!
Thank you so much for all the videos! I got 1310
No problem! Glad they helped :)
just watching the vids?? i have it on saturday and im cramming rn😭
Gonna take mine in December and I'll let you guys know my score
Best of luck!
Been studying everyday, taking the SAT tomorrow! I hope I do good!
Best of luck!
Thank you so much I am giving Sat August this will be really useful
Glad it was helpful!
OH NO! 1:25:45 You are showing the ELECTRIC FLUX question. SAT created this question for people to do unnecessary work. They gave the formula for electric flux as the product of electric field and surface area. They also gave the electric field as 29 v/m. These are all dummy information. All you have to do for this question is ratio the large area to the total area.
4640 (9x/10x) = 4176
So much quicker! The SAT loves to waste our time… 🤦♂️
DUDE GRT! THX A LOT FR SAVES A TON
where is 9x and 10x from
@@JohnWilllordVMunar
Small area = (1x)(1x) = 1x (actually x squared)
Large area = (3x)(3x) = 9x
Total area = 1x + 9x = 10x
Large/Total = 9x/10x
Thank you ❤ I take my test in about 45 mins 🙏🏾😭
Best of luck!
how was it?
1:21:00 according to desmos x=-3.5
Plugging in x=-3.5 to each side of the equation gives different values! Try plugging it into desmos again.
@@PrepworksEducation i put y= x^2 -7x-30 in desmos and the x of the vertex was -3.5.
@@PrepworksEducation but yeah you are right it gives different lhs and rhs values. but why is desmos giving the wrong x co ordinate
Do you have the formula list that we need to know before the SAT math section?😢😢
I’m watching this 30 minutes before my test 😅😅
Best of luck!
Tomorrow is Exam Day. Wish me luck
Best of luck!!
How was your exam
🐐 thank you so much
Happy to help!
nobody updates anybody with their score in this comment section 💀
People forget 😕
Thank you for the video! Any tips on how to improve my math skills? Such as improving geometry skills. Questions like sin cos tan, or questions requiring angles and degrees. These I have trouble with.
Hey! For geometry, get your formulas down. If you have a conceptual error, target it with Khan Academy videos. Then, spam practice Qs from our review videos for geometry until you feel confident!!
Wish me luckk! First try on august
Mine too! hope we score good :)
Good luck to both of you!
@@PrepworksEducation Thank you!
Appreciate it, glad it has helped!
How was your exam😊
My exam is on saturday. I wish watching this video will help me to get solid 800 from math.
Best of luck! With the exam in 3 days, here are my best 10 tips to optimize your chances for scoring your maximum potential on the SAT!
th-cam.com/video/fqvQDqdhAfI/w-d-xo.html
Could you please make a video covering every topic of maths that is tested in Digital SAT. (Theoretical formulas and everything)
Hey, we will be working on that but will not be released before the August SAT.
@@PrepworksEducation Thank you! Looking forward to watching it!
10:22 I don’t understand how u can negate the x variable because both sides have different values without the x as there is a different number of x on each side which would make it unequal?
studying this today for tmr's SAT 😭
Best of luck! You got this!
thank you so much
You're welcome!
Thank u so much
Appreciate button for South Korea❤
No problem! 👍
I like this video a lot but I keep taking breaks bc I have adhd and idk how to stay focused through these kind of long videos :-(
Hey, no worries! If you want, check our Digital SAT Math playlist. It’s the same questions but broken up into individual videos - making it easier to process!
49:15 why does a have to be positive
30:30
very nice, thx!
No problem!
Can somebody please explain the question at 9:13 ? I track the math but I'm still confused on how the x values were removed in the math. Thank you!
6x^2 + 3px + 24 - 16px - 64x
Isolate x
3px - 16px - 64x = - 155x
Follow the video.
1:04:49 is the answer b or c?
The answer is “B” !!!!!
for question at 58:25 and any others asking to make least possible value for k or other - the value that makes it 0 was 49, and answer was 50, but could answer also be 49.1? because this is technically the least possible value that will make discriminant a negative. Or should these be answered with whole numbers?
Questions like these will usually specify constraints like “integers”, “whole numbers”, or “positive” / “negative”.
Started reviewing this to help my daughter prep for her SAT. Sure it’s been 40+ years since I was in school but you already lost me on question number 1. I do not know how you got answer D and not C. That makes zero sense to me. God help the kids taking these tests now.
The SAT makes it tricky! I suggest encouraging your daughter to take a free practice test on the College Board websites (via Bluebook) as a diagnostic. Then, address conceptual issues/do practice problems in the areas needed for improvement.
When we calculate the cost of the week with $135 a day, that means that we are paying only $135 for the first day. Since the problem states that we need to pay $270 only on the FIRST DAY, (we already paid $135 for that day) you subtract $135 from $270 meaning that we need to pay $135 for the first day. Answer choice C is incorrect because that means on the first day we are paying $135 + an additional $270 which is OVER only $270 on the first day, so it is wrong. Hopefully this helps! :)
I got it wrong, but the easiest way I thought about is plug 1 for x into each equation in answer choices. (1 for x means 1st day) and notice how C doesnt give 270 as the first day price and instead its higher, which is wrong considering the question. Because question states that on day 1 $270 is paid means only answer D gets us 270 for y when plugged 1 for x
I'm scared for saturday :.(
Good luck!
thank u so much and i also have a question, i did the bluebook practice test 6 and i got a 1310, do you think test6 is good for prep or no,and can you do another prediction video
Hey, yes it’s widely regarded that PT 6 is accurate. I may be able to post another prediction video, but no guarantees. However, I think this video will help you EVEN MORE!
10 EASY Hacks to Increase SAT Score 100+ Points (NO STUDYING!)
th-cam.com/video/fqvQDqdhAfI/w-d-xo.html
how did u go from the equation set up to n=12 in 6:02. I don't know how to plug that into my calculator! thank you!!
pray for me my test is at 8 am on Saturday...
🙌 Good luck! 🙏
I dont know but i feel like theese questions are way easier than blue book cause like these ones i can do them but the ones in blue book makes me think if i am cooked
Trust me, the ones that make you think you’re cooked will not count that much against your score.
44:11 Where did the -18x come from?
@@smalldragon8267
(x-9)(x-9)
x^2 - 9x - 9x + 81
x^2 - 18x + 81
@@OverclockingCowboy thx
1:48 I'm not clear about the answer to be D,i feel like this word problem questions are my flaws 😭💔
14:19
10:25 why cant i put those two expressions and use a slider to find out P in desmos
Hey, that method would work as well.
If you put a slider on p, Desmos would be solving for x. That is not going to do you any good.
You can try setting x = 1 (separate line) and change - 155 of the second equation to m. Desmos is going to solve for m. Slide p and monitor m. The value of p that gives you m = -155 is your answer.
Have fun abusing Desmos.
at 1:53:51 can you choose any value for a? I chose positive 3 but after adding the a and b values (3x^2 -12x -63), i got 3-12 which is -9. im confused since i thought i could choose any integer value greater than 1 but 3 doesnt seem to work
It’s not that it doesn’t work, it’s that of the answer choices provided, which one of them COULD be the answer. And so, there may be multiple answers.
@@PrepworksEducation so if i get a question similar to this, to make sure i get the answer as quick as possible, i should just try the value right above/below the inequality the question states?
The fastest way is to just plug it into desmos! Then, use a slider so you can test a bunch of values.
a(x - 7)(x + 3)
ax^2 - 4ax - 21a
Thus,
(a+b) = a - 4a = -3a
(a+b) can take any value for integer “a” that is greater than one. a = 2, 3, 4, etc
So (a+b) can have -6, -9, -12, -15, etc
You pick from the answer choices.
If the question asks for max value of (a+b), the answer is -6. They cannot ask for least possible value.
@@OverclockingCowboy ty
i'm doing this at 3 am before the test help
Go to sleep bro
Is this video really enough for boost score 1010 to 1500+ ?
dude tf is this . appreciate the help but i am shocked by how hard these math questions are . ig im cooked in my saturday exam
Hey, there is a mix of some easy/medium/hard questions. Have you taken any of the SAT Bluebook practice tests? Those are similar to the difficulty of the real thing.
For your Saturday exam, perhaps these last minute hacks/tips will help:
th-cam.com/video/fqvQDqdhAfI/w-d-xo.html
(no extra studying!)
I feel like the questions in this video are harder than in the actual test. Especially in the first math module which is WAY easier than this. just did a practice test today haha
I mean hey, its better to be over-prepared than underprepared! :D
@@PrepworksEducation facts
Explain the first question please...
When we calculate the cost of the week with $135 a day, that means that we are paying only $135 for the first day. Since the problem states that we need to pay $270 only on the FIRST DAY, (we already paid $135 for that day) you subtract $135 from $270 meaning that we need to pay $135 for the first day. Answer choice C is incorrect because that means on the first day we are paying $135 + an additional $270 which is OVER only $270 on the first day, so it is wrong. Hopefully this helps! :)
44:04 where did -18x come from?
It's quite helpful but I think these are pretty easy and hard question are pretty hard 🧐
We will be coming out with an updated version that will add on a couple harder questions!
Can not a lot of these be solved way faster with desmos?
Indeed! However, being able to practice the foundational skills will help on those last M2 questions. On the actual DSAT if you can, try and solve all the easy Qs w/ desmos as to not waste time!
at 1:32:53 why is using special triangles incorrect? Thank you!!
AC = BC
So AB = root(2) AC
Is that what you meant?
You get the same result as the video using Pythagorean.
Im just starting now even though my test is this saturday😭😭
LOCK IN!
Very helpful but I have a question in 37:23 why is the denominator 2?
Because the radical is a square root so automatically assume that means 2*radical(x^5). It’s like the root is always 2 unless expressed otherwise like in the bottom expression
Just remember square root means to the power 1/2, cube root means to the power 1/3, etc.
at 5:57 what did you do to get 12?
or what did you multiply?
Divide 5.12 x 10^8 by 2.5 x 10^5
That should give you 2^11
n -1 = 11
n = 12
quick question for the biking and running question since they’re represented by different variables why wouldn’t it be 200=5x+20y instead of 200=5x+20x? Sorry for the late comment.
Because they are running/biking for different times. The coefficients represent the speed while the variables represent the time at that speed. If I’m running for 5 minutes and biking for 10, I’m going different speeds AND different times on each (I haven’t seen the exact question so I’m just assuming, reply with a time stamp if you are still confused)
👆 Spot on :)
@@raidernathan4209 Ok thanks. Sorry, i’m still a bit confused. So since they’re going different speeds with different times we would only need to use one variable?
Why did you divided 76°/2 on 15:15
@@QnH1402 cause triangle is isosceles, that means both angles in triangle would have same degree value
i love you with all my life king.
😉
Are any of these questions in the practice tests? I haven’t done all of the practice tests and I don’t want to spoil any of the questions
Hi, yes unfortunately a select few are from the practice tests. You can practice questions that are not on the practice tests by going to the Collegeboard educator bank
@@PrepworksEducation ok thanks 👍
managed to get all of these right :D
Amazing!
can you explain how you got x = 33 at 1:52:08 without use desmos? like by hand
Hey, sure.
x * x * sqrt 3 = 1089 * sqrt 3
is the same as:
x^2 * sqrt 3 = 1089 * sqrt 3
divide both sides by sqrt 3
x^2 = 1089
take the sqrt of both sides
x = 33
(we take the principal square root on the SAT, so the positive value is the answer)
hope this helped!
can you even plug #2 into a calculator? i don't understand; wouldn't it not work because of the variable n without a value?
If you take (2.5 * 10^5)(2 ^ (n-1) ) = 5.12 * 10^8 and divide by (2.5 * 10^5) on both sides you get 2 ^ (n-1) = (5.12 * 10^8) / (2.5 * 10^5). Then you can use the log function with a base on the desmos graphing calculator (bring up the keyboard, click functions, and find log a) to do log base 2 of ( (5.12 * 10^8) / (2.5 * 10^5) ) = x -1 and then see where the line intersects the x-axis for the value of n
Tomorrow is my exam😢 should I watch this or practice questions on khan academy
Khan Academy + December SAT Predictions (2024)
th-cam.com/video/wqoVz2olnRI/w-d-xo.html
Best of luck!
why did you include the (p+4) at 11:03 but not include the (+8) from the other parentheses? im so confused
Hey, we are only interested in the “x” term.
Think about it like this, here’s an example via quadratic formula:
ax^2 + bx + c
The (+8) is just a constant, c, which does not matter for our “x” value of b.
@@PrepworksEducation i think i understand it now, you added the p+4 since all of the terms you were solving for had an x in them
Yes! 👍
@@PrepworksEducation thanks! nice video btw this is great practice
Appreciate the support! Glad it helps.
where can i find this worksheet
It is not a worksheet 👍
in 3:58 how is it 2x? from 2.5 to 5 its not, is there a different thing you're calculating that im missing💔
You would multiply it by "2", but I just notated it as "2x" to represent it as the scale factor!
1:10:20 the answer isnt accurate,-5+4 is not 9
4 - (-5) = 4 + 5 = 9 👍
Does the DSAT allow you to have and write on a piece of paper? I want to write my work down physically so I can keep track and avoid any mistakes possible but I don't know if they allow that on the test day. Can anyone tell me if they allow you paper and pencil?
yep you can use scrap paper during the test
👆😎
who else got dat shit saturday
me bru
Good luck to you both!
Hey , regarding the second question. How is it exponential growth when it is multiplying by 2 every day, isnt it linear?
linear is adding or subtracting by a common amount
@@chloema8747 oh but not multiplying right?
@@Aditya-su4qy
Linear means straight line.
2 4 8 16 32
Is not a straight line
This is a straight line
2 4 6 8 10
Increment of 2
Multiplication is exponential
@@Aditya-su4qy yes kinda, it is 2x, so it is based on whatever x is. X changes as the line progresses so it's 2 times the previous x, since x increases like that, the equation increases like that making it exponenetial
My Exam is Tomorrow !! I dont know what will happen , i m jus scoring a 1100 in practice test I think i will be scoring 900 in Real SAT
Relax! You will do fine.
Can you please tell me if any of the questions in this video are in the bluebook practice exams?
Hi, yes unfortunately a select few are from the Bluebook tests. If you want questions exclusively not on them, go to the Collegeboard Educator bank!!
i did all the questions with focus in this video and have practiced many more questions can you tell how much would i score in math
Hi, what was your score? You can also take a Collegeboard bluebook practice exam online for free to get an accurate estimate.
@@PrepworksEducation bluebook test 3 math-760
bluebook test 6 math-780
and did all questions in the video except 3 questions
Hi, does this video cover every possible SAT topic, I just want to know because I’m really nervous 😢, I studied but I still feel like if I see some questions I might just blank out
SAT math topic”
Hi! I covered pretty much the most important ones. However, the SAT can always “spin” the concepts in a weird way so be prepared.
Also, perhaps taking a look at mean, median, mode, standard deviation, or statistical analysis in general.
@@PrepworksEducation thank you so much I’ll try and check formulas for that
No problem, best of luck!
hi does this video really contain every single math concept?? i wanna know before i watch lol
Hey! Yes it does… the one thing I left out were statistical reasoning Qs. I did not think it was worth putting a question like, calculate the mean of 1, 2, 3, 4, 5…
will make sure to tell u my score, im scared, im scoring 1400s dunno if i can get it to 1520 in a short time
Hey! This video may help you get over that 1400s plateau and score 1500+ !!
th-cam.com/video/fqvQDqdhAfI/w-d-xo.html