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Gallons of water in a 3 mile pipe 2009-02-19
tim pose la question :
I need to know how many gallons of water a 16" pipe that is 3 miles long holds?
Penny Nom lui répond.
A ten player schedule 2009-02-19
john pose la question :
I HAVE 10 PLAYERS ONE GAME PER NITE FOR 10 WEEKS WHO PLAYS WHO FOR WEEK 1 THRU 10 THANK YOU
Victoria West lui répond.
Vertices, edges and faces 2009-02-19
Deb pose la question :
I have been reading the responses you have to whether or not a cone and cylinder have edges, and whether a cone has a vertex. I have also found differing answers in different books and websites. Your idea that it depends why we want to call it a vertex or edge is interesting but does not help the students next year when they have a different teacher who tells them that whatever decision I make is wrong! It also doesn't help them when they do the provincial testing. Does anyone know if EQAO considers them vertices or edges? I want to know because textbooks and provincial tests often ask the students to count the number of faces, edges, and vertices or to describe a solid by using these, or to identify a solid that they have described. We need to have consistency in what we are teaching!
Chris Fisher lui répond.
Joggong in opposite directions 2009-02-19
Mallory pose la question :
Emma and her mother jog along a mile-long circular path in opposite directions. They begin at the same place and time. Emma jogs at a pace of 4 mi/h, and her mother runs at 6 mi/h. In how many minutes will they meet?
Robert Dawson lui répond.
One vertex angle of a regular octagon is trisected 2009-02-19
Chelsy pose la question :
Suppose one vertex angle of a regular octagon is trisected as shown in the figure. Each side of the octagon measures 4 units. Find the area of the shaded area.
Robert Dawson lui répond.
The volume of a cylinder 2009-02-18
jim pose la question :
given the volume of a cylinder at 565m^3 and the height of 20m how do i calculate the cross section area in order to determine the compression strength of the cylinder
Harley Weston lui répond.
Implicit differentiation 2009-02-18
Sunny pose la question :
Find slope of the tangent line to the curve 2(x^2+y^2)2=25(x^2–y^2) at (3,-1)
Robert Dawson and Harley Weston lui répond.
The substitution method 2009-02-18
Nicolette pose la question :
I am working on linear programming problems that I need to solve pairs of linear equations for. I am confused and am not sure how to solve these problems!
5x+3y=7      y=x-3 How can i solve this using the substitution method?

Penny Nom lui répond.
A line parallel to a given line 2009-02-18
Lisa pose la question :
I'm having a hard time understanding the concept of how to write an equation of the line containing the given points and parallel to the given line.
Express the answer in the form of y=mx+b. (7,9); 2x+5y=4. i would appreciate it alot if someone can show ne how to do this. Thank you, Lisa

Penny Nom lui répond.
A dinner party 2009-02-18
will pose la question :
You are serving 3 different entrees at a party. If 100 guests are having beef, 175 guests are having pasta, and 45 percent of the guests are having chicken how many guests are expected at this party?
Penny Nom lui répond.
More on cardinal numbers 2009-02-18
Justin pose la question :
Hello again, I was just wondering that since the rules of Cantor's cardinal numbers in set theory do not apply to the infinity obtained by limits in calculus (ex. x->0, y=1/x=infinity), does that mean that this infinity is the largest quantity in both calculus and mathematics?

Justin

Robert Dawson lui répond.
The area between the x-axis and a curve 2009-02-18
Lauren pose la question :
This is from a homework question I can't figure out.

Let R be the region in the fourth quadrant enclosed by the x-axis and the curve y= x^2 - 2kx, where k > 0. If the area of the region R is 36 then what is the value of k?

Robert Dawson lui répond.
Angle of depression 2009-02-18
Meeka pose la question :
An aircraft flying at an altitude of 2000m is approaching an airport. If the angle of depression of the airport is 5 degrees, what is the distance from the plane to the airport measured along the ground? Round your answer to the nearest tenth of a kilometer.
Robert Dawson lui répond.
How can other infinites can be larger than each other? 2009-02-17
Justin pose la question :
Hello again, I was just wondering even in the context of set theory, how can other infinites can be larger than each other, I thought infinity itself is the largest possible quantity?

Justin

Victoria West and Robert Dawson lui répond.
More on infinity and Set Theory 2009-02-17
Justin pose la question :
I greatly appreciate your help I was just wondering from your previous answer, why doesn't Cantor's cardinal numbers in set theory apply to the limit x->0, y=infinity?

Justin

Robert Dawson lui répond.
 
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