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	Archimedes' formula for parabolic arches		2009-01-23
		From La: Use calculus to verify Archimedes' formula for y=9-x^2. Prove Archimedes' formula for a general parabolic arch. Answered by Harley Weston.
	Un système de plusieurs équations et plusieurs inconnues		2009-01-22
		From Cédrick: J'ai un problème écrit à résoudre est-ce que vous pouvez m'aider ? Le premier est le tiers de la somme des deux autres. La somme du premier et du deuxième est 13. Le produit du deuxième et du troisième est 56. Réponse: Le premier nombre est___________________ Le deuxième nombre est _________________ Le troisième nombre est _________________ Answered by Pierre-Louis Gagnon, Antoine Letarte at Claude Tardif.
	3/4 0f what=75		2009-01-22
		From tyree: 3/4 0f what=75 Answered by Harley Weston.
	Calculate the GST paid from the total		2009-01-22
		From Claude: I need to know the GST I paid for irems bought. What is the simple formula to calculate the GST paid from the total. Some merchants do not clearly indicate the amount of GST on their sale receipt. Answered by Harley Weston.
	5 "digit" combinations		2009-01-22
		From Timothy: I was wondering how many different 5 digit combinations are possible using 0-9 and a-z and you can use the same letter or number repeatedly in the combination. Answered by Penny Nom.
	In the shadow of a flagpole		2009-01-22
		From La: How fast is the length of the shadow of an 18 foot flagpole growing when the angle of elevation of the sun is 45 degrees and is decreasing at a rate of 10 degrees per hour? Answered by Harley Weston.
	Probability and birthdays		2009-01-22
		From La: Neglecting the effect of leap years, what is the chance that, of 6 people selected at random, 2 will have the same birthday? Answered by Penny Nom.
	1 foot drop every 25 feet		2009-01-22
		From jerry: 1 foot drop every 25 feet what is the angle of the degree Answered by Penny Nom.
	The parabola with vertex (7,-2) and directrix y = -3		2009-01-21
		From Deann: Find an equation of the parabola with vetrex (7,-2) and directrix y =(-3) Answered by Penny Nom.
	26 paychecks		2009-01-21
		From Kenneth: Hello: If someone is paid every two weeks, he receives 26 paychecks per year, (52 weeks/year)divided by (2 weeks/1 check) equals 26 paychecks per year. However, if the calculation uses days instead of weeks, the answer is not exactly 26 paychecks. For example, 365 days divided by 14 days per paycheck equals 26 1/14 paychecks. Fourteen days is equivalent to two weeks, isn't it? Why is there this fractional amount of 1/14 of a paycheck? Answered by Robert Dawson and Victoria West.
	The height of a triangle		2009-01-20
		From ELEY: WHAT IS THE HEIGHT OF A TRIANGLE IF THE AREA IS 32.4 AND A BASE OF 6.75? Answered by Robert Dawson and Penny Nom.
	A tortoise and a hare		2009-01-20
		From jenna: A tortoise can run with a speed of 0.14 m/s, and a hare can run 20 times as fast. In a race, they both start at the same time, but the hare stops to rest for 1.0 minutes. The tortoise wins by a shell (25 cm). (a) How long does the race take? (b) What is the length of the race? Answered by Stephen La Rocque.
	Factor x^2 - y^2		2009-01-20
		From Shell: complete Factor: x^2-y^2 Answered by Penny Nom.
	PST and GST		2009-01-20
		From janet: Hello I need to figure what one would pay pst 8% gst 5% on a total of $1700.00 I have a small business some pay with cash I need to calculate the taxes in reverse Can you help with formula that the government might like Thank you Janet Answered by Harley Weston.
	A three digit number		2009-01-20
		From marcha: when this three digit number is rounded to the nearest ten, the sum of its digits is 16 the hundreds digit of this number is 8 and the ones digit is 5, what is the number? Answered by Robert Dawson.

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