







Application surjective 
19990930 

Charass pose la question : je suis étudiant en premiere année de deug et je cherche apres une definition si vous pouviez m'aider, ça serait sympa. qu'est ce qu une application subjective? Claude Tardif lui répond. 





Two cars approaching an intersection 
20150416 

Engabu pose la question : Car A is traveling west at 50km/h & car B is traveling north at 60km/h. both are headed for the intersection of the two roads. At what rate are the cars approaching each other when car A is 3km & car B is 4km from the intersection? Penny Nom lui répond. 





Applications of trigonometry 
20080524 

Mohita pose la question : I have got a project in the school and i am not getting anything about the topic. The topic is that we need to find the application of trigonometry on any one of the real life situations using 3dimensional figures. I mean how can trigonometry can be used in real life situations like navigation, architecture, survey, astronomy etc. Penny Nom lui répond. 





Out of school applications of Pythagoras Theorem 
20080123 

Laura pose la question : Hi,
I am currently working on a math summative in which I have to choose a real life subject and relate it back to the material in my grade 12 math class. I find the history and discovery behind the Pythagorean Theorem and Identity very interesting, but I have yet to find a reallife application of the equations. Yes, I know they are used for finding distances, heights etc., but realistically, how many people actually use it in those situations? Very few. I was hoping for a new application. Is the pythagorean theorem (sin^2x + cos^2x = 1) even applicable? Thank you,
Laura Harley Weston lui répond. 





Practical applications of sequences 
20080101 

carl pose la question : can you give me examples of different kinds of practical applications of sequences? Penny Nom lui répond. 





A curve sketch 
20071122 

Ahson pose la question : Find critical points, determine the monotonicity and concavity and sketch
a graph of f(x) with any local maximum, local minimum and inflection
points labeled:
1. f(x) = x^4  x^3  3x^2 + 1 Harley Weston lui répond. 





Applications of sequences and series 
20070827 

Trish pose la question : I'm a grade 12 learner working on a math project based on sequences and series. I'd like to know the different types of sequences and series such as fibonacci, fourier, farey, etc.
I've already used the Fibonacci Sequence and Harmonic Series
and need two more.
The simpler the sequence or series type the better.
I'd also like to know in which nonmathematical areas use sequences and series
and how.
Areas such as engineering or science. Penny Nom lui répond. 





Using complex numbers 
20070312 

Kara pose la question : Do you use complex numbers in your job? Stephen La Rocque and Penny Nom lui répond. 





Conic sections 
20061119 

Joyce pose la question : My son has a project on conic sections. I need the following information on Parabola, Circle, ellipse,and hyperbola. He can't find the following information for each conic section: equations with explanations, four uses for each shape and Shape explanation. Penny Nom lui répond. 





Some applications of conic sections 
20061113 

Burt pose la question : how are circles, ellipses, and hyperbolas used in everyday life Penny Nom lui répond. 





The focus of a parabola 
20061001 

Lily pose la question : I have a mathematical assignment which includes applications of parabolas, hyperbolas and ellipses in the real world. I have been searching the internet and now I am ware that most of the applications of parabolas have a connection with what people call "the focus". However, I do not think I clearly understand what "the focus" of a parabola is. Would you please explain it to me? Penny Nom lui répond. 





Applications of logarithms 
20030916 

A student pose la question : I have a project due in my algebra two class dealing with logs and where they are used in life, but I am having trouble finding websites that relate. So I would really appreciate it if you couldhelp me. Penny Nom lui répond. 





Polynomials and exponents 
20010115 

A student pose la question : I am duing a project in math on polynomials and exponents. I need a real life usage of polynomials and exponents for my project. Penny Nom lui répond. 





The Pythagorean Theorem 
20010108 

Megan pose la question : Why the Pythagorean Theorem so important in our lives and what is it's history? Penny Nom lui répond. 





The pythagorean theorem in everyday life 
20010106 

Josh pose la question : What are some ways that we use the pythagorean theorem in jobs, or even in everyday life? Claude tardif lui répond. 





Parabolas in life 
20001203 

Ashley pose la question : I am a student and my teacher recently gave us the assignment of writing a portfolio on parabolas in life and finding examples, three to be in fact, only we have to go into detail about only one. We have been instructed to include such terms as: axis of symmetry, completing the square, parabola, quadratic formula, standard form (vertex form) and vertex. We also must include in our detailed example an equation of the parabola and very specific details, PLEASE HELP! Harley Weston lui répond. 





Where will we use this in the real world? 
20001011 

Jane Ann Musgrove pose la question : As a teacher of mathematics, I am always asked "Where will we use this in the real world?". I am seeking ideas/sites via the internet where students can find answers to this type of question. Can you help me? To be more specific, right now I am interested in finding careers where the employees would use the concepts of "Radicals", "Matrices", and "Logarithms". This information will be used by students to make presentations to the class on their findings from internet searches. Harley Weston lui répond. 





Resources for realworld math activities 
19990326 

Kate O'Brien pose la question : Where is there a collection of math acitivities or projects to use in high school Algebra I, Algebra II, or Trigonometry that tie concepts to realworld careers? Jack LeSage lui répond. 





An application of Pythagoras' theorem 
19960409 

Mike pose la question : We'd like to know what practical applications there may be for the Pythagorean theorem. Penny Nom and Maxine Stinka lui répond. 

