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	How many millimeters are in 12 feet?		2006-01-06
		From Hunter: How many millimeters are in 12 feet? Answered by Penny Nom.
	Differentiation, powers and logs		2006-01-06
		From Claudia: Question: how do I find the derivative of x* ln(x+(e^2))^2 x^lnx x^(e^(-x^2)) Answered by Penny Nom.
	Liters and milliliters		2006-01-05
		From Cara: if you had 1.5 liters of water, how many milliliters would you have Answered by Penny Nom.
	The volume of a cylinder		2006-01-04
		From Doug: I have a Cylinder which is 34" x 72" how many gallons will it hold? Answered by Penny Nom.
	Milliliters, centiliters and hogsheads		2006-01-03
		From A worried teen: How many milliliters are in a centiliter? and What is an equivalent to a hogshead in liquid measuring? Your help is greatly appreciated. Sincerely worried teen Answered by Penny Nom.
	The area of an octagon		2006-01-03
		From Nikki: I want to figure out the square footage of an octagon. i have 8 panels that are 24" wide. Its for my dogs and i wanna know how much room they'll have. Answered by Penny Nom.
	The average of 4 numbers is 5.		2006-01-02
		From Sheri: The average of 4 numbers is 5. I have 3 of the numbers already- 5,8,4,? How do i find out what the last number to give me the average of 5? Answered by Penny Nom.
	3x^4 - 81		2006-01-02
		From Julio: How can I factor the following?: 3x4 - 81 Answered by Penny Nom.
	Percentage change when you start from zero		2006-01-02
		From Joseph: I am not sure if my meaning for calculation for a percent change (C-P/P)x100) is correct. In this case, C=10, P=0, does this mean 100 percent increase from previous period? Answered by Harley Weston.
	The area of a sector of a circle		2006-01-02
		From Natashia: How do you find the area of a shaded sector of a circle? Answered by Penny Nom.
	A train model is created using a scale of 1:60		2006-01-01
		From Jennifer: An "n gauge " train model is created using a scale of 1:60. If an actual train engine, the "K-4" an early twentieth-century engine,is 45 feet long, what is the length of an "N gauge" model of the engine in inches? Answered by Penny Nom.
	Extraneous solutions		2006-01-01
		From Liz: Question: solve and check for extraneous solution 3(w + 1)1/2 = 6 Answered by Penny Nom.
	A probability question		2005-12-31
		From Ling: Question: If an integer is randomly selected from all positive 2-digit integers (i.e., the integers 10, 11, 12, . . . , 99), find the probability that the integer chosen has (a) a 4 in the tens place (b) at least one 4 (c) no 4 in either place Answered by Penny Nom.
	The area of a polygon		2005-12-31
		From Rahul: I have problem in finding area of polygons. I don't know the formula to find area of pentagon, hexagon and so on. Answered by Penny Nom.
	A probability question which resulted from a game of Yahtzee		2005-12-31
		From Robert: Could someone please assist me with this probability question which resulted from a game of Yahtzee we were playing in Melbourne, Australia on our holidays. The object on this turn was to throw a “large straight” which is 5 numbers in sequence from 5 dice numbered 1 – 6. A player initially throws all 5 dice and then selects those dice they want to throw again for a further two more times. In this instance the player on their first throw, threw a 1,2,3,4 and 6. Question:- What is the respective probabilities of gaining a straight if they were to – a) put back say the 6 and try and throw a 5 on the two further throws or….. b) put back the 1 and 6 and try and throw a 1 and 5 or 5 and 6 on the two further throws bearing in mind that if one of the numbers was a 5 on the second throw they could hold that number and try for a 1 or 6 on the third throw. I would be most appreciative if someone could assist in showing me how to calculate the probabilities particularly in the second instance (b). Answered by Penny Nom.

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