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	Grade 5 shapes and measurements		2007-09-23
		Marina pose la question : I'm helping my grade 5 son in this assignment but I don't know how. There are 2 question I would like you to help me: 1.How can the shapes used to form a larger similar figure using 4 shapes: ( a 3 by 3square is drawn in a 6 by 6 dot figure,drawing attached) 2.You are planning to build a birdhouse measurement is attached,. You are going to cut the pieces from a board that is 12 inches wide. How long should the board be? Penny Nom lui répond.
	The weights of packages are normally distributed		2007-09-23
		alan pose la question : the weight of a packet of sweets produced in a factory are normally distributed. the mean weight is 100g the standard deviation is 2g all packets weighing less than 99g and more then 105g are rejected what proportion are rejected Penny Nom lui répond.
	The diagonal of a square		2007-09-23
		Nasreen pose la question : A(7,2) and C(1,4) are two vertices of a square ABCD find in the form ax+by=c the equation of the diagonal BD Stephen La Rocque lui répond.
	12 men can complete a work in 8 days		2007-09-23
		farah pose la question : 12 men can complete a work in 8 days. 3 days after they started working, 3 more men joined. In how many days will all of them together complete the remaining work. Stephen La Rocque lui répond.
	Are the diagonals of a trapezoid ever perpendicular?		2007-09-23
		Amanda pose la question : Are the diagonals of a trapezoid ever perpendicular? Harley Weston lui répond.
	The sequence 2,4,7,11,16,22		2007-09-22
		Simon pose la question : I thought i understood how to explain how to work out the nth term on a sequence of numbers until my son had this sequence to work out - 2,4,7,11,16,22 We have worked out the 2nd differance is +1 but nothing else seems to fit. Im sure the answer is staring us in the face but cant see the wood for the trees! Denis Hanson and Steve La Rocque lui répond.
	Sample variance and population variance		2007-09-22
		Willy pose la question : I have a question in sample variance and population my name is Willy the question in the attached file... Harley Weston lui répond.
	Finding equations, intersection point of two lines at right angles		2007-09-22
		Yaz pose la question : Find the equation of the line joining A(-1,-9) to B(6,120). Another line passes through C(7,-5) and meets AB at rigth angle of D. Find the euation of CD and calculate the co-ordinates of D. Stephen La Rocque lui répond.
	The incline of my yard as it slopes away from my house		2007-09-22
		Janet pose la question : I need to calculate the degree (or is it percent?) of incline of my yard as it slopes away from my house. Do I visualize a right angle formed by a level line from the bottom of the slope to the side of the house, and then compare the line of the slope against the right angle to get the degree? Or is an incline calculated by the measurement of the rise in 100 feet? For instance, if the ground rises 3 feel in a distance of 100 feet, is that a 3% incline? And if it rises 4 feet in a distance of 25 feet, is that a 16% incline? Thanks so much. Stephen La Rocque lui répond.
	Two equations in two unknowns		2007-09-22
		Mary pose la question : Having problems doing this problem, looking for a solution with the work. I would like to see how you got your answer, to see what I was doing wrong. solve using the substitution method, is there "no solution" or "infinitely many solutions" 4x+y=4 2x+8y=0 Stephen La Rocque and Leeanne Boehm lui répond.
	How much water to fill my bedroom?		2007-09-22
		hector pose la question : how can i find out how much water i can fill my bedroom with when it measures 12 ft.x12 ft.x10 ft. Steve La Rocque and Penny Nom lui répond.
	The derivative of f(x)=1/(x-1)		2007-09-21
		Michelle pose la question : im having trouble finding the derivative of f(x)=1/(x-1) using the f(x+h)-f(x)/h method. Stephen La Rocque lui répond.
	Cubes		2007-09-21
		Yvonne pose la question : The numbers 756 and 72, expressed as products of prime factors, are 756 = 2² x 3³ x 7 and 72 = 2³ x 3² Use these result to find, the smallest integer, x, such that 756x is a perfect cube. Penny Nom lui répond.
	Working together		2007-09-21
		farah pose la question : A can do a piece of work in 10 days while B can do the same work in 15 days . They work together for 5 days and the rest of the work is done by C in 2 days . If they get 400$ for the whole work , what should be A's share. Harley Weston lui répond.
	Water flowing into a tank		2007-09-21
		andrew pose la question : Hi, I've been having real trouble visualizing this problem as apposed to a conical tank. It says the base of a pyramid-shaped tank is a square with sides of length 12 feet. The vertex of the pyramid is 10 feet above the base. The tank is filled to a depth of 4 feet, water is flowing into the tank at the rate of 2 cubic feet per minute. Find the rate of change of the depth of water in the tank. Harley Weston lui répond.

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