. centre de ressources dilemmes et doutes le visage humain de mathématiques Qui sommes-nous Problème de mois activités de promotion babillard
Centrale des maths - centraledesmaths.uregina.ca
Dilemmes & doutes
« D & D »
. .
topic card  



liste de
. .
nouvelle recherche

7 articles trouvés pour ce sujet.
Points on the x-axis 2015-03-14
Justin pose la question :
jamie tells her friend that ordered pairs that have an x-coordinate of O line x-axis. She used the origin as an example. Describe Janine error. Use a counterexample to explain why Janine statement is false
Penny Nom lui répond.
Slicing through a cone to form an ellipse 2013-08-06
Pulkit pose la question :
we get an ellipse on slicing through a cone. Is there a relation between central axis of the cone and this ellipse?
Does it pass through the any of the foci of the ellipse?

Chris Fisher lui répond.
The Praxis II test 2002-07-09
A student pose la question :
I am taking the Praxis II test and I can't seem to answer certain styles of questions. Please help!!!!!!
  1. In a class of 29 children, each of 20 children has a dog and each of 15 has a cat. How many of the children have both a dog and a cat?

  2. If there are exactly 5 times as many children as adults at a show, which of the following CANNOT be the number of people at the show? a. 102 b. 80 c. 36 d. 30

  3. In order to estimate the population of snails in a certain woodland, a biologist captured and marked 84 snails there were then released back into the woodland. Fifteen days later the biologist captured 90 snails from the woodland, 12 of which bore the markings of the previously captured snails. If all of the marked snails were still active in the woodland when the second group of snails were captured, what should the biologist estimate the snail population to be based on the probabilities suggested by this experiment? a. 630 b. 1,010 c. 1040 d. 1080.

Paul Betts lui répond.
Counterclockwise 2001-09-14
Rolanda pose la question :
When Descartes invented the coordinate system he decided to number them counter-clockwise. Why?
Chris Fisher lui répond.
Is there an odd and even function? 2001-03-02
Saima pose la question :
Is there a function that is both even and odd at the same time? In other words, is there a function that can pass the y-axis, x-axis, and origin symmetry test?
Claude Tardif and Penny Nom lui répond.
Notation 1999-09-03
Judy Gray pose la question :
My name is Judy Gray. I guess the level on this would be about middle school, and I am an other!! I've been out of school for alot of years. I have a couple of questions, I guess.
  1. What does an equal (=) with a slash through it mean? I put intersects, but I think I'm wrong.

  2. What is the symbol of a small n? Only the symbol is wider. Example: If A = {1.2} B = {2,3} then what is A (n) B? Can you make sense out of that?

  3. What is the equation of the y-axis?

Penny Nom lui répond.
Y-axis 1997-05-29
Leah pose la question :
I know that the proper name for the X axis is the abscissa, but, what is the proper name for the Y axis?
Chris Fisher lui répond.



Centrale des maths reçoit une aide financière de l’Université de Regina et de The Pacific Institute for the Mathematical Sciences.



accueil centre de ressources accueil Société mathématique du Canada l'Université de Regina PIMS