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	A double negative		1999-09-01
		Dennis pose la question : If b = -2 what does -b = ? As in (a + 8.5) - [(-b) + |c|] a = 1.5, c = -1.7 Penny Nom lui répond.
	A Multiple Choice Test		1999-08-31
		Cintra Ramnarine pose la question : I have ten questions. There are two multiple choice answers to each question. What are the chances of answering all questions correctly. Harley Weston lui répond.
	Intercepts		1999-08-29
		Sally Rickerson pose la question : I am looking for any intecepts. How do I solve: y=x^2 square root of (9-x^2) Harley Weston lui répond.
	The Bellhop Problem		1999-08-29
		Gerard O'Neill pose la question : Three fellows going to a Math Conference book into a motel. "That will be $30.00" says the bellhop. Each fellow gives $10.00 and they go off to their room. The manager enters and says "That was a $25.00 room. Go and give them $5.00 back." The bellhop heads off but thinks....."how am I going to split $5.00 between 3 fellows? Hey I will keep two dollars and give each guy a dollar." He does just that.......each fellow now paid $9.00 and the bellhop kept two. 3 X 9= 27 plus the bellhops two = $29.00 Where is the missing dollar? Harley Weston lui répond.
	A Trigonometry Question		1999-08-28
		Diane Simms pose la question : My question is can the following be factored. I am a teacher who needs the factors to this right away. 2 Sin2X + 2 SinX CosX - 1= 0 Harley Weston lui répond.
	Invert and multiply		1999-08-28
		Debbie Walter pose la question : I have another question please, WHY do we invert and multiply when dividing fractions? I know that's what we do but WHY? What is the reasoning behind it? Penny Nom lui répond.
	Crossing the Bridge		1999-08-27
		Debbie Walter pose la question : If you have four people who need to cross a bridge in the dark with only one flashlight and only two of them can cross at a time and their speeds of crossing are as follows: one person can cross it in one minute one person can cross it in two minutes one person can cross it in five minutes and the slowest person can cross it in ten minutes what is the shortest amount of time it would take to get all four across the bridge? Penny Nom lui répond.
	The sum of the cubes is the square of the sum		1999-08-25
		Bernard Yuen pose la question : How to prove 13 + 23 + 33 + 43 + ... n3 is equal to (1+2+3+...n)2? (for n is positive integer) Harley Weston lui répond.
	A gazillion		1999-08-21
		Leah pose la question : Does a gazillion really exist? Penny Nom lui répond.
	Division by a negative		1999-08-19
		Sangeeta B. pose la question : 56/-8 Penny Nom lui répond.
	Why is slope designated m?		1999-08-18
		Peter Komlos pose la question : Why is the slope of a line is designated by the letter "m"? Penny Nom lui répond.
	Perimeter		1999-08-15
		Mel Nordan pose la question : The length of a rectangle is IS 3 1/2 times its width. Its perimeter is 108cm. Find its length and width. Choices for the width: 12,18,24 Penny Nom lui répond.
	111...1222...2		1999-08-11
		Brad Goorman pose la question : Let N = 111...1222...2, where there are 1999 digits of 1 followed by 1999 digits of 2. Express N as the product of four integers, each of them greater than 1. Penny Nom lui répond.
	Parametric Equations		1999-08-06
		Nicholas Lawton pose la question : Show that an equation of the normal to the curve with parametric equations x=ct y=c/t t not equal to 0, at the point (cp, c/p) is : y-c/p=xp^2-cp^3 Harley Weston lui répond.
	From an airport control tower		1999-08-04
		Pammy pose la question : Hi I am a 30 yo mature age student doing my HSC but am having difficulty understanding this, if you can help me. From an airport control tower, a Cessna bears 023 degrees T and is 27km away. At the same time, a Boeing 767 bears 051 degrees T and is 61km from the tower. Both planes are at the same height. i) What is the size of angle ATB? ii) Using the cosine rule to calculate the distance the planes are apart, to nearest kilometre. I figured out and drew the triangular diagram but can't figure out the rest and which formula to use. sorry about this, thankyou kindly Harley Weston lui répond.

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