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	Related rates		2008-11-26
		From Lyudmyla: How fast is the volume of a cone increasing when the radius of its base is 2 cm and growing at a rate of 0.4 cm/s, and its height is 5 cm and growing at a rate of 0.1 cm/s? Answered by Harley Weston.
	Dividing Large Numbers		2008-11-26
		From Mark: what is 7.9 trillion divided by 301 million? Answered by Janice Cotcher.
	A periodic function		2008-11-26
		From Ali: A periodic function f(x) has a period of 9, if(2)=-3 and f(5)=13, determine the value of f(11)? tks /rgrds Ali Answered by Penny Nom.
	Fractions of fractions		2008-11-26
		From DIANNE: Question from DIANNE, a student: 5(16-9) divided by 7x2+14 top part of equation _____________________________________ 12-3x2 bottom part Answered by Penny Nom.
	A log base 2 problem		2008-11-26
		From dave: solve for x (log base 2 of x) - (log base 2 of (x-2)) = 3 Answered by Penny Nom.
	Two tangents to a circle		2008-11-26
		From rogerson: The length of the tangent to a circle is 15 cm. If the angle between the two tangent lines to the circle is 28 degrees, what is the radius of the circle? Answered by Penny Nom.
	Six golfers		2008-11-25
		From Joe: I have a group of 6 golfers wanting to play 3 or 4 rounds but with different players each day if possible. We know we cannot make it happen without some playing with the same person. Can you provide some pairings for this? Answered by Victoria West.
	A trig identity		2008-11-25
		From Jeff: i cannot prove this trigonometric identity. please help! (cos x)^3 – (sin x)^3 = (cos x –sin x) (1+cosxsinx) Answered by Chris Fisher.
	Primes and polynomials		2008-11-24
		From Andrew: How effective are the two pairs of polynomials, taken together, at "excluding" any prime p. 1. (a^2 - a.b + b^2) and (a^2 + a.b + b^2) Where b > a > p and (a, b, p) = 1 2. (c^2 - c.a + a^2) and (c^2 - c.b + b^2) Where c > b > a > p and (a, b, c, p) = 1 Answered by Victoria West.
	What % of his salary does he save?		2008-11-24
		From Tarique: John earns 15000 every month. He spends Rs. 8900 .What % of his salary does he save? Answered by Penny Nom.
	A cereal box that has a volume of 12000cm^3		2008-11-24
		From William: Hi, I have this math question that says construct a ceral box that has a volume of 12000cm3 and the surface area of the box has to be between 3200cm2 and 400cm2, I found some dimensions that are 20 by 20 by 30 and it works, but when I attempt to make the box, or make a net I would need this hugh piece of paper/cardboard, which I don't have, is there an easier way to find different dimenshions so I dont need a hugh piece of paper to create a net easily? Because i've tried trial and error but it has taken to long and I cant find anything,else, thats resonable. Answered by Harley Weston.
	The game of 24		2008-11-24
		From Davey: this has us all stumped. 5 ,5 ,7 ,and9 = 24. Oh may you assist in ending our brain pain Answered by Penny Nom.
	Symmetries of a parallelogram		2008-11-24
		From anisha: how many lines of symmetry does a parallelogram have. A square and a rect are a parallelogram too. so it is confusing?? pls help Answered by Walter Whiteley.
	Quadratic equations arising from practical problems		2008-11-24
		From Lenval: Why do quadratic equations arising from practical problems often give physically impossible solutions such as negative distances, negative times or, say, a polygon with a negative number of sides? For example: "A river in flood carries a tree t-squared - 23t metres downstream in t seconds. How long does it take for the tree to be carried 50 metres downstream?" This gives t=25 and t=-2. Please explain the second 'solution', which is not physically possible. Answered by Chris Fisher and Victoria West.
	Une série géométrique		2008-11-23
		From anass: je vx savoire est ce kil existe la somme de (1/n^x) avec n variant de 0 jusk à infini nota: lorsk x=1et 2 la somme reste tjrs facile mé lorsquil depasse 3 c difficile et merci Answered by Pierre-Louis Gagnon.

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