.
. 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 »
. .
Fresh off the press   Voici les articles les plus récents
de notre base de données:
. .
nouvelle recherche

 
Page
643/886
The Mean Value Theorem 2005-12-22
Candace pose la question :
Verify that the function satisfies the hypotheses of the Mean Value Theorem on the given interval. Find all numbers "c" that satisfy the Mean Value Theorem. 11. f(x)=3x2 + 2x +5 [-1, 1]
Penny Nom lui répond.
$24,000 investment at 5% daily interest 2005-12-21
Gary pose la question :
My friend is a professional day trader on the stock exchange. He claims that he can take a $24,000 investment at 5% daily interest and at the end of 3 years have approximately 34 million dollars. Can this be correct?
Penny Nom lui répond.
The height of a right triangle 2005-12-21
Sanmantha pose la question :
I am trying to solve for the height of a right triangle. The base is .05 mm, and the apex is 0.5 degrees. I vaguely recall from high school that this should be enough information to solve for height, but I can't remember what equation(s) to use.
Penny Nom lui répond.
A rectangle has a length that is 7cm more than twice the width 2005-12-21
Stephanie pose la question :
A rectangle has a length that is 7cm more than twice the width. The area of the rectangle is 60cm squared. Find the dimensions of the rectangle.
Penny Nom lui répond.
Simultaneous Equations 2005-12-21
Matt pose la question :
I have these two equations,
336 = 60a + 10b
and
432 = 84a + 6b
Am I right in saying both a and b are 4.8?

Penny Nom lui répond.
Skeeball 2005-12-21
Jenny pose la question :
Kira and Dajuan decided to have a Skeeball contest. They each played one game to see who would get the highest score. A description of their contest follows:
Denis Hanson lui répond.
More on the origin of integers 2005-12-20
A student pose la question :
have a math extra credit project and we have to go online and look up the origin of integers and I can't find it anywhere do you know??????
Harley Weston lui répond.
A word problem 2005-12-19
Karen pose la question :
A package designer wants to protect an expensive book with a 5 cm wide cardboard rim. The area of the rim is equal to the area of the book. What is the length of the book? (The book is square)
Penny Nom lui répond.
Mathilda and Matthew 2005-12-18
A student pose la question :

Question: 1) The average of 12 is 5. The average of of 8 of these numbers ia 6. What is the average of the other four.

2)Mathilda is playing a mathematical game with Matthew. Each player starts from a point, then moves in a straight line to a second point,then to a third and so on. The moves are not made randomly, but are determined by a mathematical rule. The object of the game is to find the rule. It is Mathilda's turn to move on the grid . She starts at point M (3,9), moves to point N (2,4) and then to point O (0,0). Given Mathilda's rule, what could be the coordinates of the next point to which she might move?


Penny Nom lui répond.
The game of 24 with 7, 5, 5 and 4 2005-12-18
Nicole pose la question :
i was playing the 24 game the other day. you get 4 digits and you have to turn them into 24. You can use addition, subtraction, division, and multiplication. You have to use all the numbers but you can only use each number once. an example is 2 4 4 1 the answer is (2x4)(4-1)=24. I got stuck on one. The numbers were 7 5 5 4 .
Penny Nom lui répond.
-3^4 and (-3)^4 2005-12-17
Brad pose la question :
What is the answer to

-34 = ?
-(3)4 = ?

(-3)4 = ?

Penny Nom lui répond.
If 7 times a number is decreased by 8 ... 2005-12-17
Joyce pose la question :
If 7 times a number is decreased by 8, the result is the same as when 3 times the number is increased by 6. Find the number.
Penny Nom lui répond.
Percent change 2005-12-17
Marie pose la question :
What is the percentage change when 1500 becomes 2000?
Penny Nom lui répond.
A max-min problem 2005-12-16
Julie pose la question :
A car travels west at 24 km/h. at the instant it passes a tree, a horse and buggy heading north at 7 km/h is 25 km south of the tree. Calculate the positions of the vessels when there is a minimum distance between them.
Penny Nom lui répond.
The lengths of the sides of an octagon 2005-12-16
Andrew pose la question :
I need to find the length of the sides of an octagon with an area of 289 in2.
Penny Nom lui répond.
 
Page
643/886

 

 


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

CMS
.

 

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