.
. 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
597/886
BEDMAS 2006-09-24
Partick pose la question :
if you have a question like this
-(4)-(-4)+(-4)+4
how do you solve it step by step

Penny Nom lui répond.
How many items must the company produce to begin to make a profit? 2006-09-24
Devon pose la question :
The profit a manufacturing company makes can be found using the formula P=120n - n^2 - 2200 How many items must the company produce to begin to make a profit?
Stephen La Rocque lui répond.
a _________________ line forms a 90 degree angle with another line 2006-09-24
Lisa pose la question :
a _________________ line forms a 90 degree angle with another line is this to it what fills in the blank? first letter is E third letter is R and has 13 letters
Stephen La Rocque lui répond.
Piecewise functions 2006-09-24
Claudia pose la question :
hi! i was just looking at a question by someone else about piecewise functions, but i still don't get it.
my problem is
g(x){x+2 if x <-2}
g(x){2x - 1 if x> or = -2}

Penny Nom lui répond.
Estimating products by rounding 2006-09-24
Ann pose la question :
my son is in the fifth grade and they are doing estimate products rounding both factors, he knows how to round off a decimal, but he is having a problem doing a decimal and a whole number for example 5.96x3=? He knows the 5.96 round off to 6. but what does the 3 round off to?
Penny Nom lui répond.
Help me prove that the square root of 6 is irrational 2006-09-23
Sylvia pose la question :
Could you please help me prove that the square root of 6 is irrational ?
Stephen La Rocque lui répond.
The perimeter of an acre 2006-09-23
George pose la question :
I am trying to figure out how many feet go around the perimeter of one acre of land for a fence.
Stephen La Rocque and Penny Nom lui répond.
I need to cut an octagon 2006-09-23
Freddie pose la question :
I have a 48 inch square piece of wood that I need to cut into an octagon, help. What's an easy way to just measure and cut it.
Penny Nom lui répond.
How do I determine the length of the lot? 2006-09-22
Dylan pose la question :
If a rectangular lot's perimeter is 340 feet, the width is 70 feet. How do I determine the length of the lot?
Penny Nom lui répond.
An equilateral triangle has been wedged in between two circles. 2006-09-22
Kim pose la question :

An equilateral triangle has been wedged in between two circles. How does the diameter of the smaller circle compare to the diameter of the larger circle.

image: circle inside of an equilateral triangle touching all sides of the triangle; both the triangle and the circle inside are placed into a larger circle where the triangle vertices all touch the circle


Penny Nom lui répond.
How long will it be before the two snails meet? 2006-09-21
Brett pose la question :
Two snails are 8.5 feet apart. They start to crawl toward each other at the same time. One of them travels at the speed of 6 in. per minute, while the other zips along at 11 inches per minute. How long will it be before the two snails meet?
Penny Nom lui répond.
The odd numbers from 30 to 80 2006-09-21
Kieran pose la question :
If you added all the odd numbers from 30 to 80, would the answer be even or odd? Explain.

I think it would be odd because I used this equation:
(30 x 5)+(40 x 5)+(50 x 5)+(60 x 5)+(70 x 5)+(25 x 5)=1325
I used the numbers for each set of ten -30 to 80 times 5 and the amount of the endings-1,3,5,7,9- added, times 5. Is that right?

Penny Nom lui répond.
Sqyare yards and cubic yards 2006-09-21
Kevin pose la question :
I WOULD LIKE TO KNOW HOW TO CONVERT SQUARE YARDS INTO CUBIC YARDS OF MATERAIL (DIRT)
Penny Nom lui répond.
Linear systems 2006-09-21
Alexander pose la question :
Hello, i have a math assignment due tonight at midnight and i need some help please

It is using the addition method to solve linear systems
Penny lui répond.

What is the diameter of the circle that contains this octagon? 2006-09-21
Dave pose la question :
if the distance between two parallel sides of an octagon is 350 cm, what is the diameter of the circle that contains this octagon (ie. a circle that touches all eight corners)?
Stephen La Rocque lui répond.
 
Page
597/886

 

 


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