.
. 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
327/886
limit sinx/x 2009-01-30
Jackie pose la question :
how to evaluate limit sinx/x as x tends to zero if x is in degrees
Stephen La Rocque and Harley Weston lui répond.
The intersection of two lines 2009-01-30
kaylee pose la question :
how do you find and graph the intersect of these two equations: y=2x-4 (and) 2y=x thanks, kaylee
Stephen La Rocque lui répond.
Missing three digits in a phone number 2009-01-30
Elmer pose la question :
I have part of a phone number. the first 3 digits are 212, the last digit is four, and the three missing digits are all odd, how many numbers will I have to call to get the right number?

212- _ _ _ 4?

Stephen La Rocque and Penny Nom lui répond.
Whitney's average test score was 79 2009-01-30
dawn pose la question :
After 5 tests, Whitney's average test score was 79. After she scored 85 on the 6th test. What was her new average?
Penny Nom lui répond.
The amount of concrete in a football stand 2009-01-30
jacques pose la question :
A football stand 150 yd long has 20 tiers of seats; each tier has a rise of 2ft and tread of 3ft.Its construction of reinforced concrete with a cross section as shown. Find the amount of the material used in its construction.
Penny Nom lui répond.
What is 301 million in word form? 2009-01-30
chyamber pose la question :
What is 301 million in word form?
Penny Nom lui répond.
A railway cut 2009-01-30
Jean pose la question :
A railway cut 200ft. long and 30ft. wide at the bottom is made with sloping sides, which are 80ft. and 60ft. in length. The 80-ft. side is inclined 45 degrees and the other side is 35 degrees to the horizontal. Find the cost of removing the earth at $2 per load, if the trucks have capacity of 4cu. yd.
Penny Nom lui répond.
A die is loaded so that... 2009-01-30
Larry pose la question :
Hi. I'm having trouble solving this problem. Would you be kind enough to point me in the right direction?
A die is loaded so that the probability of a particular face rolling up is proportional to the number of dots on the face. In other words, getting a six is three times as probable as getting a two. what is the probability of getting an even number in one toss?

Victoria West lui répond.
Shapes 2009-01-29
Rana pose la question :
I want to know about Circumference / Area / Volume of different shapes ie Circle , Oval , An Arc Trapezide etc
Robert Dawson and Harley Weston lui répond.
The height of an isosceles triangle 2009-01-29
Mariah pose la question :
An isosceles triangle has sides 10cm, 10 cm and the base 4cm. How do you find out the height of the triangle?
Penny Nom lui répond.
Will Juanita be late for class? 2009-01-28
safdar pose la question :
juanita bumps into tory in the hallway between period 1 and 2,there is a 45% chance that she will be late for class.if she does not bump into tory, she will make it to class on time. there is a 25% chance that juanita will bump into tory. what is the probability that she will be late on any given day. be sure to introduce your events for this question and show the appropriate formula given the events.
Penny Nom lui répond.
y = |x| - 4 2009-01-28
tiana pose la question :
how do you find where to plot Y in a problem that states y=|x| -4?
Robert Dawson and Penny Nom lui répond.
Ambitious 7th Grader 2009-01-28
John pose la question :
I have been asked to tutor a 7th grader who is very good in math. He is taking the most advanced course that his school offers to 7th graders. This course will cover Algebra 1 over a period of two years, using McDougal Littell's Algebra, Structure and Method, Book 1, a book I like a lot.

I have been hired not to help him with his schoolwork, which is too easy for him, but to guide him through something in math beyond his schoolwork. This was his idea, an idea which surprised his parents, but one which they support.

Do you have a suggestion for me? If so, I would be very grateful to hear from you. I think this could be a lot of fun for me and my new student, if I pick the right path.

Thanks and best regards, John John

Robert Dawson, Victoria West and Walter Whiteley lui répond.
Four digit numbers using 1, 0, 2 and 8 2009-01-27
Mike pose la question :
How many combinations of this four digit number 1028 can this produce only using those numbers. Example would be 0000, 0001,0002,0008,0010,0011,0012,0018,etc...
Penny Nom lui répond.
Graphing a parabola 2009-01-27
Kimberly pose la question :
I need help with this parabola: graph y=5x^2-5x-6. I am not really understanding how to graph parabolas in general. Can you help me?
Penny Nom lui répond.
 
Page
327/886

 

 


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