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	Moving grain across the river		2008-03-12
		From Janice: Wesley needs to move 820 kg of grain across the river in a canoe that can carry no more than 120 kg. Wesley has a mass of 70 kg. What is the fewest number of trips he will have to make? A. 17 trips; B. 18 trips; C. 32 trips; D. 33 trips. Answered by Penny Nom.
	A dilation project		2008-03-12
		From john: I am working on a dilation project. How do I dilate an irregular octagon on a scale of 3.5 Answered by Stephen La Rocque.
	A circle and a square		2008-03-12
		From mae: what are the formulas on getting the area of the square outside an inscribed circular region? Answered by Penny Nom.
	The centre and radius of a circle		2008-03-12
		From Ryan: hello and thank you for such a wonderful service. This problem I think needs to be checked could you take a gander at it and tell me if i get it correct thanks find the center and the radius of this circle x^2+y^2=8x-2y+15=0 I cam up with center -2, 1/2 and a radius of 11 3/4 Answered by Harley Weston.
	Estimate the cube root of 270		2008-03-11
		From Tom: (a) By plotting suitable graphs, estimate to one decimal place the cube root of 270. (b) With reference to your answer to part (a), use 8 iterations of a Bisection Search to refine your estimate. Use the nearest whole numbers either side of your estimate from part (a) as starting values. (c) Using either of your starting values from part (b) as first guess, use the Newton-Raphson method to find the true value of the root (to 6 decimal places). Repeat using the other starting value from part (b) and compare the two results. Answered by Harley Weston.
	Find the present age of the two siblings		2008-03-11
		From jessica: Theresa is four years older than her younger sister Joni. Twelve years ago, she was twice as old as her sister . Find the present age of the two siblings. Answered by Stephen La Rocque.
	(x^2+x-22)^4/3=16		2008-03-11
		From Ryan: (x^2+x-22)^4/3=16 I keep on getting thrown off because of the fractional exponent I couldn't find an example like this one Answered by Stephen La Rocque.
	A ton of carbon dioxide		2008-03-11
		From claire: I want to know the size of a box if it contained a ton of Co2? Answered by Stephen La Rocque.
	Factor x^6-5x^3+25		2008-03-11
		From jacob: how do you factor equations for algebra 2 x^6-5x^3+25 Answered by Harley Weston.
	A width-to-length ratio of 2 : 3		2008-03-11
		From Stephanie: The national flag of France has a width-to-length ratio of 2 : 3. What is the width of an 18-inch long French flag? Answered by Penny Nom.
	Completing the square		2008-03-11
		From Ryan: solve for x by completing the squares, x^2+4x-8=0 Answered by Stephen La Rocque.
	Un bénéfice de 5%		2008-03-11
		From mahiques: Un propriétaire decide de vendre deux parcelles de terrains pour un montant total de 141750 F. Il fait un bénéfice de 15% sur la première et une perte de 10% sur la deuxième. L'ensemble de la transaction lui a rapporté un bénéfice de 5%.combien a-t-il vendu chacune des parcelles ? Answered by Pierre-Louis Gagnon.
	The diagonals of a hendecagon		2008-03-10
		From karan: How many diagonals does a hendecagon have? Answered by Penny Nom.
	An incorrect Babylonian formula		2008-03-10
		From Martin: Given the area of an isosceles trapezoid is 150, that the difference of its bases is 5 (that is b1 - b2 = 5), and that its equal sides are 10 greater than two-thirds of the sum of its bases (that is, s1 = s2 = 2/3(b1 +b2) + 10 Solve the problem using an incorrect Babylonian formula for the area of a trapezoid A = (b1 + b2)/2 x (s1 + s2)/2 Find the length of the sides of the isosceles trapezoid. Answered by Penny Nom.
	A linear system		2008-03-10
		From sandhiya: one group of people purchased 10 hotdogs and 5 soft drinks at a cost of $12.50. a second group bought 7 hotdogs and 4 soft drinks a ta cost of $9.00 find the cost of a single hot and a single soft drink.(using the row echelon form to solve) Answered by Penny Nom.

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