- Видео 630
- Просмотров 204 560
VQIntel
США
Добавлен 28 апр 2017
Welcome to VQIntel, the RUclips channel that provides you math practice with fully worked out examples.
New guided practice videos go up Monday through Friday. Every video contains 5-10 examples worked out with a companion PDF worksheet for you to follow along.
Over the weekend, challenge problems are posted with topics ranging from standardized test prep (ACT, SAT, AP) to deeper/more conceptual questions of topics already covered.
Have suggestions? Email videoquodintelligo@gmail.com with ideas.
Want to support the channel? Check out the Patreon Page to support the channel and gain access to open-ended problems on the same topics posted here.
New guided practice videos go up Monday through Friday. Every video contains 5-10 examples worked out with a companion PDF worksheet for you to follow along.
Over the weekend, challenge problems are posted with topics ranging from standardized test prep (ACT, SAT, AP) to deeper/more conceptual questions of topics already covered.
Have suggestions? Email videoquodintelligo@gmail.com with ideas.
Want to support the channel? Check out the Patreon Page to support the channel and gain access to open-ended problems on the same topics posted here.
ICTM 2023 - Regional A - Precalculus
The problems are the property of ICTM. This video is submitted for educational purposes under general use.
Intro - 0:00
Problem 1 - 0:16
Problem 2 - 0:57
Problem 3 - 2:07
Problem 4 - 4:27
Problem 5 - 5:47
Problem 6 - 8:37
Problem 7 - 10:47
Problem 8 - 13:57
Problem 9 - 16:47
Problem 10 - 19:27
Problem 11 - 21:27
Problem 12 - 22:27
Problem 13 - 26:07
Problem 14 - 28:35
Problem 15 - 30:37
Problem 16 - 34:27
Problem 18 - 35:47
Problem 19 - 38:37
Problem 20 - 41:47
Intro - 0:00
Problem 1 - 0:16
Problem 2 - 0:57
Problem 3 - 2:07
Problem 4 - 4:27
Problem 5 - 5:47
Problem 6 - 8:37
Problem 7 - 10:47
Problem 8 - 13:57
Problem 9 - 16:47
Problem 10 - 19:27
Problem 11 - 21:27
Problem 12 - 22:27
Problem 13 - 26:07
Problem 14 - 28:35
Problem 15 - 30:37
Problem 16 - 34:27
Problem 18 - 35:47
Problem 19 - 38:37
Problem 20 - 41:47
Просмотров: 17
Видео
ICTM 2023 - Regional A - Algebra 2 Contest
Просмотров 23Месяц назад
The problems are the property of ICTM. This video is submitted for educational purposes under general use. Intro - 0:00 Problem 1 - 0:10 Problem 2 - 1:30 Problem 3 - 2:30 Problem 4 - 4:15 Problem 5 - 5:45 Problem 6 - 8:55 Problem 7 - 10:55 Problem 8 - 14:26 Problem 9 - 18:26 Problem 10 - 19:30 Problem 11 - 20:48 Problem 12 - 22:50 Problem 13 - 24:40 Problem 14 - 29:05 Problem 15 - 30:54 Problem...
ICTM 2023 - Regional A - Geometry Contest
Просмотров 45Месяц назад
The problems are the property of ICTM. This video is submitted for educational purposes under general use. Intro - 0:00 Problem 1 - 0:15 Problem 2 - 1:30 Problem 3 - 3:25 Problem 4 - 5:25 Problem 5 - 6:29 Problem 6 - 7:50 Problem 7 - 9:19 Problem 8 - 12:27 Problem 9 - 17:04 Problem 10 - 18:06 Problem 11 - 21:18 Problem 12 - 23:14 Problem 13 - 24:16 Problem 14 - 26:19 Problem 15 - 28:38 Problem ...
ICTM 2023 - Regional A - Algebra 1 Contest
Просмотров 14Месяц назад
The problems are the property of ICTM. This video is submitted for educational purposes under general use. Intro - 0:00 Problem 1 - 0:15 Problem 2 - 0:51 Problem 3 - 1:55 Problem 4 - 3:11 Problem 5 - 4:29 Problem 6 - 6:04 Problem 7 - 7:18 Problem 8 - 9:03 Problem 9 - 11:20 Problem 10 - 12:16 Problem 11 - 14:39 Problem 12 - 15:47 Problem 13 - 16:47 Problem 14 - 18:17 Problem 15 - 21:36 Problem 1...
2024 AP Calculus AB FRQ Problem 6 #apcalculusab #apcalculus
Просмотров 662 месяца назад
The problems are the property of College Board. This video is submitted for educational purposes under general use. Prompt - 0:00 Part A - 0:30 Part B - 1:43 Part C - 7:19
2024 AP Calculus AB FRQ Problem 5 #apcalculusab #apcalculus
Просмотров 1642 месяца назад
The problems are the property of College Board. This video is submitted for educational purposes under general use. Prompt - 0:00 Part A - 0:16 Part B - 2:18 Part C - 4:34 Part D - 6:05
2024 AP Calculus AB FRQ Problem 3 #apcalculusab #apcalculus
Просмотров 492 месяца назад
The problems are the property of College Board. This video is submitted for educational purposes under general use. Prompt - 0:00 Part A - 0:30 Part B - 1:03 Part C - 7:10
2024 AP Calculus AB FRQ Problem 4 #apcalculusab #apcalculus
Просмотров 1012 месяца назад
The problems are the property of College Board. This video is submitted for educational purposes under general use. Prompt - 0:00 Part A - 0:30 Part B - 2:42 Part C - 4:30
2024 AP Calculus AB FRQ Problem 2 #apcalculusab #apcalculus
Просмотров 1232 месяца назад
The problems are the property of College Board. This video is submitted for educational purposes under general use. Prompt - 0:00 Part A - 0:16 Part B - 3:48 Part C - 5:59 Part D - 8:05
2024 AP Calculus AB FRQ Problem 1 #apcalculusab #apcalculus
Просмотров 3612 месяца назад
The problems are the property of College Board. This video is submitted for educational purposes under general use. Prompt - 0:00 Part A - 0:18 Part B - 1:29 Part C - 3:54 Part D - 6:28 MY MISTAKE - 100 is positive, not negative - 8:10 WRONG ANSWER - Because C" is positive, the rate is changing at an INCREASING rate - 9:36
2023 AP Calculus AB FRQ Problem #3
Просмотров 145Год назад
The problems are the property of College Board and can be accessed here. apcentral.collegeboard.org/media/pdf/ap23-frq-calculus-ab.pdf Intro 0:00 Part A 0:48 Part B 1:22 Part C 3:34 Part D 6:25
2023 AP Calculus AB FRQ Problem #1
Просмотров 91Год назад
The problems are the property of College Board and can be accessed here. apcentral.collegeboard.org/media/pdf/ap23-frq-calculus-ab.pdf Intro 0:00 Part A 0:21 Part B 2:52 Part C 5:38 Part D 7:10
2023 AP Calculus AB FRQ Problem #2
Просмотров 48Год назад
The problems are the property of College Board and can be accessed here. apcentral.collegeboard.org/media/pdf/ap23-frq-calculus-ab.pdf Intro 0:00 Part A 0:14 Part B 2:00 Part C 5:04 Part D 6:16
2023 AP Calculus AB FRQ Problem #4
Просмотров 126Год назад
The problems are the property of College Board and can be accessed here. apcentral.collegeboard.org/media/pdf/ap23-frq-calculus-ab.pdf Intro 0:00 Part A 0:16 Part B 2:05 Part C 3:27 Part D 5:55
2023 AP Calculus AB FRQ Problem #5
Просмотров 47Год назад
The problems are the property of College Board and can be accessed here. apcentral.collegeboard.org/media/pdf/ap23-frq-calculus-ab.pdf Intro 0:00 Part A 0:14 Part B 1:22 Part C 4:03 Part D 5:04
on 2:12 you have miscalculated the (2)(2) + (-5)(-1) = 10. The answer should be 9
Such an underrated video.
For 5.b, wouldn’t you need to check where the horizontal like y = 1 intercepts the graph?
For this problem, there are 2 conditions we need to meet: 1. The point of tangency has a y-value of 1 2. The point of tangency has a slope of zero. My approach was to plug in -1 for y and 0 in for dy/dx and solve for the x-value. I got a false statement which means there is no point that fits both criteria. Your suggestion would get to the same conclusion by another route. You would plug in -1 for y into the implicit equation. This gives you x-values of plus or minus square root of 43. What this means is that the curve has two points where the y-value is -1. Now we need to ensure that those points have slopes of zero. If you plug in those x- and y-values into dy/dx, you will NOT get zero, which is what you need for a horizontal line. So this method will also lead to the conclusion that there is no horizontal line when y = -1.
For part B, do we have to solve for average value because it only asks what's the meaning?
You make a valid point that they don't ask for the numerical value of the average value. Since they only ask for the MEANING, you might get away with not including its value. I chose to include it in case they expected you to include the value in the explanation of the meaning. We will see what College Board says after they publish their Scoring Guidelines.
For part A, 69 - 85 = -16, not -14, so instead of your answer being -7/2, it should be -4 degrees.
Great catch! I should have used my calculator to double check that.
For part d. Isn't C''(t) > 0? since the term (100-t) in the numerator should always be positive on the interval 12 < t < 20, but you wrote it as being negative.
Great catch! Thanks.
Thanks a lot for video.
I'm confused on how you got the 3 at matrix C. If you are giving 1 for i and 1 for j, wouldn't it be 2? I'm not very good at math, so I'm confused. Sorry for the bother
Good question. Thanks for watching! The rule was i+2j where i stands for the number of the row and j is the number of the column. The top row is row 1, the middle row is row 2 and the bottom row is row 3. The left column is column 1 and every column after that is 2, 3 and 4. So the upper left spot is in row 1 and column 1. Using the formula, c11 = 1 + 2(1) = 3
oh my god thank you so much, my brain was going to explode trying to do this with the equation and trying the graphing calculator!
Thank you so much
You are a hero❤
Thanks very much, all clear
Thank you so much for this video even iam watching this video after 5 years but it is very useful❤
Has a clear interpretation
I used this to compare a data point list and a function, and it seems to work. If we take the square of the output, does it give us the coefficient of determination?
Thank you very much. You are doing a tremendous and great effort, but unfortunately there is little interest in this work
What about 13:02 BA, CA
That's a mistake right? -5*-1 = 6
Thank you! This really helped
Thank you so much
Thanks sir for all thing you done for helping
Thanks
I applaud your effort and in your first video you correctly state that this is all very simplified. Since I don't see that you got around to doing any more videos on this topic (which is fine, of course), I thought I'd just mention a few of the complexities we might consider. First, you haven't taken into account hitting the crossbar which causes the same groaning sound from the fans as hitting the up-rights. Second, your assumption of 90 degrees as your denominator in both videos strikes me as far too large and angle. Any NFL kicker should be much more accurate than that, even Chicago's. If you want to include hitting the crossbar you would have to consider what the denominator would be in the vertical direction. Another approach to solving this problem would be to ignore the angles involved and consider just the plane of the goal post as an area and that the ball has equal probability of going through any part of the area. Then figure out what the area of the metal is (+/- the overlap with the ball). Of course the whole exercise stems from some human perception that the ball is hitting the goal posts "more often than it should." But, since there's no physical reason I can think of for why the laws of probability and physics should not apply to this phenomenon, I suspect the best way to calculate the probability is to look at the historical record and find out how often it does, in fact, happen.
Thanks.
thank you so muhc. you are the goat
Preciate it g
Nice one
Nice i like it
Thank you so much for sharing !!
Your RUclips title is frq 3 ... but it's frq 4 -- you might want to edit the title.
Oops. My mistake. Thanks for pointing it out!
Can I ask what is row index and column index?
thank you
spent an hour and a half learning how to use sigma notation so i could do this by hand, because i didn't know you could just do it like this in desmos... thanks for this, it was actually really helpful XD
Glad I could help!
Wow! How can they expect you to answer that in 1 minute?
That depends on the score someone is shooting for. If your goal is a 30+, then you will take more than 1 minute because you will get through the easier problems in much less time. That will leave you with enough of a buffer so that you can spend 2-3 minutes on this one problem or problems of similar difficulty. If your goal is less than 30, then this is a problem that I advise my clients to guess and move on. A 30 means you can miss about 10 questions and this is one of those problems that students should feel ok about skipping.
@@PrecisionTutoring Ok, thank you!
Very helpful sir. Trying to bring up my 26 in math!
Happy to help!
What? 2019-2020 but published in 2018?
They use the same for for three years in a row.
I keep getting an error
It may be because your number type is set to "automatic" (it just did that for me). Go into "Format"->"Number"->select "Number" (the one with decimal points). Hope this helps!
helped a lot
what are the odds of hitting the goal post at 30 yards.
How do I get the mean if it is a very large dataset of 5k+ entries? I can't highlight all of them.
If you are using Google Sheets you can use A1:A to refer to an entire column, in this case, column A. Hopefully there no data in the column you wish to not include.
@@PrecisionTutoring Thanks!
@@amcmahon845 Use R studio
Amazing! Seems like we see it more often in real life. Curious if this is tracked in the nfl
when I did it I either got an error or the auto-fill was weird
Was the error in the first entry when you typed in the formula or when you extended the formula to the whole column?
thaaaaaank you!
can you share link to your Sheets file that has the data. I'd like to use it to explain to my HS Statistics class.
it helps me a lot brother thank you, I've been looking for an example like the 3rd example for 2 days :)
Excellent
Mine is still not showing it it says "both arguments of core must be list" what's that mean
Great question! It means that Desmos is looking for x1 or y1 and either you haven’t defined it or it is not a list. If you haven’t yet made a table of values then you definitely haven’t yet defined x1 or y1. You always need the table before you find the correlation. Hope that helps, if you still have trouble, comment back.
@@PrecisionTutoring hi i do have a table of values but it isnt working still?
Lol just graph it
Thank you so much!!!!
Very nice video! Thank you. However pdf download bottom is not working.
Thank you for letting me know. The links should now work.