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Math Help by Dan
United States
Приєднався 10 вер 2019
This channel is for all kinds of people who need help with math.
Відео
An Isosceles Triangle and Distance
Переглядів 1214 днів тому
The distance formula and the Pythagorean theorem.
How to graph a quadratic by hand
Переглядів 39Місяць тому
Parabolas and their graphs. Using a table of values
Finding the Base Angles on an Isosceles Triangle.
Переглядів 21Місяць тому
Finding the Base Angles on an Isosceles Triangle.
Simplifying an Expression With an Even Exponent
Переглядів 32Місяць тому
Simplifying an Expression With an Even Exponent
Drawing an Image of a Triangle Rotated 50 Degrees About a Point.
Переглядів 94Місяць тому
Drawing an Image of a Triangle Rotated 50 Degrees About a Point.
Finding the Distance Between Two Points
Переглядів 42Місяць тому
Finding the Distance Between Two Points
How to graph a point and its reflected image.
Переглядів 202 місяці тому
How to graph a point and its reflected image.
How to find an image of a point with a counterclockwise or clockwise rotation.
Переглядів 882 місяці тому
How to find an image of a point with a counterclockwise or clockwise rotation.
Solving a Two-Step Equation with a Fraction
Переглядів 992 місяці тому
Solving a Two-Step Equation with a Fraction
It’s also a 5x5 square if you rearrange
first
What math problems do you have?
I wish people could add fractions.
(2, 0), (-2, 12)
Very helpful!
Very helpful! Thank you!
What questions do you have?
Do you have any math problems I can help you with?
Very Helpful!!
Glad it was helpful!
What questions do you have?
Wouldn't it be easier/faster to just measure the 50° once and from then on only use the compass? Draw two arcs PA, PB clockwise as done in your video and then take the compass to transfer distances CA and CB from C' onto these arcs.
I will try it and let you know.
@@mathhelpbydan5051 An alternative construction strategy for polygons (>3 corners) would be to have a helper construction. For that you draw a base line and with the protractor construct a 50° _"helper line"_ cutting that base line at X. From then on you only use the compass. Draw an arc PA and with the same compass setting draw an arc from X between the base line and the helper line. Then take the compass to measure the displacement/offset and transfer that distance from A along the PA arc to get A'. Repeat for PB, PC, PD, ... to get B', C', D', ...
Let me know if you have any questions
Very helpful reminder!! Thank you!
So glad!
Please comment with any questions.
Please comment with any questions.
What questions do you have?
Comment with any math questions
Kkkkkk
To me it would seem like rotating by a positive number of degrees would be a clockwise rotation. Why is it counterclockwise?
Thanks for the question. I'm not sure why, but I do know it is true. In college precalculus, they follow this convention as well. At least my Israeli professor at Auburn did in 1981. I prefer to say which way I want it to go explicitly.
@@mathhelpbydan5051 If that's what everybody does, then I guess that's just how it is. I don't see the logic in it, but then again there's a whole lot of things I don't know, believe it or not. In any case though, thanks for the demonstration.
Please comment any problems you need help with.
Do you have a math problem I could help with?
Very Helpful! Thanks!
You're welcome!
10x (x + 10)
Great job!
Comment with any questions
Excellent video!
Thank you very much!
Questions?
Do you have any math questions?
Please comment any questions you have.
Do they ever just start with the axioms of algebra for reals.
Yes, in fact, most of the time they do. It’s an attempt to tie into something the students should already know.
Please comment with any questions you have about this topic or any other math topics.
Please comment with a math problem you have.
Very Nice video!!
Thank you very much!
I said smaller than one, but meant to say larger than one.
Comment with a question you would like me to solve on video.
Please comment with a math problem you would like me to solve on video.
Thank you very much! You Explained this far better than my math teacher!
Great to hear!
Feel free to comment with any math problem you would like me to solve on video.
Please comment with any problems you would like me to solve on video!
Thanks!
Comment any questions you have on this video or questions you would like me to make a video on.
Excellent Chess Set!
Let me know if this makes sense to you and share this video with someone else!
Are there any math problems you would like me to help you solve?
Thanks!
You are constructing two equal triangles whose angles must be equal.
No. I bisected an angle.
Two arcs you make on the original lines need to be equal, as you showed. And the two arcs you make from those points to find the bisector need to be equal to each other. But this second pair of arcs doesn't need to match the first set of arcs, and as the angle gets larger it becomes less convenient to make them the same.
Good point!
Please feel free to send me any questions you may have!!
Please feel free to send me any questions you may have!
Please feel free to send me any questions you may have!