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	Conversion factor		2009-03-23
		From kab: Would like to photocopy a Landscape Design. What is the Conversion Ratio or magnification required to convert 1" = 10 feet to 1/4" = 1 foot? Answered by Harley Weston.
	A 1.5:1 rectangle		2009-03-23
		From melody: I have an origami model that says to use a 1.5:1 rectangle. I don't understand how to calculate the size of paper I need to use. Surely there is a formula to calculate this ratio? Thanks for your help. Answered by Penny Nom.
	The base and height of an isosceles triangle		2009-03-23
		From Chris: How do you find the base and height of an isosceles triangle that has 2cm legs? Answered by Harley Weston.
	Find a polynomial function with the indicated zeros and satisfying the given conditions		2009-03-23
		From Kristen: Find a polynomial function with the indicated zeros and satisfying the given conditions. Simplofy your answer (no imaginary numbers or parentheses in the answer) Zeros: 1+2i, 1-2i, 5 ; f(-2)=1 Answered by Harley Weston.
	A simple digraph		2009-03-23
		From Shabkhal: Show that the sum of in degrees of all the nodes of a simple digraph is equal to the sum of out degrees of all its nodes and this sum is equal to the number of edges of the graph. Answered by Victoria West.
	The radius of a circle		2009-03-22
		From Justin: Find the radius of a circle with a circumference of 9.43cm. Answered by Penny Nom.
	What is the probability of accepting the box?		2009-03-22
		From x: a box consists of 10 light bulbs inspected by the following procedure: 2 bulbs are chosen at random without replacement. the box is only accepted if both bulbs work. suppose that the box contains 1 defective bulb. what is the probability of accepting the box? Answered by Penny Nom.
	A normal distribution problem		2009-03-21
		From EDGAR: to qualify for security officers training recruits are tested for stress tolerance. The scores are normally distributed with mean of 62 and a standard deviation of 8. a.) If only the top 15% of recruits are selected, find the cutoff score b.) If a candidate is rendomly selected, what is the probability that his or her socre is at least 55? Answered by Harley Weston.
	An equation for a line with a changing slope		2009-03-21
		From Ben: Is there anyway to write an equation for a line with a changing slope. e.g. A cell [hone company has a initial fee of 50$ paying for the first 100 minutes, the rate then increases to 10 cents per minute, then at 500 minutes the rate is 5 cents per minute. If so please tell how. Thanks Answered by Penny Nom.
	Percentiles		2009-03-21
		From Shawn: For a normal distribution of u=654.00 and o=138.00. What is the percentile rank for X=426? Answered by Harley Weston.
	How do I calculate to find what 100% is?		2009-03-21
		From Kathy: If $13.50 is 32% of a number, how do I calculate to find what 100% is? Answered by Stephen La Rocque.
	Problem solving		2009-03-21
		From susie: the product of a number and 9 increased by 15 is the same as one half of the difference of eight and four times the number. Find the number. Answered by Stephen La Rocque.
	A rectangular open box		2009-03-21
		From tina: An open box is to be made from a rectangular piece of tin by cutting two inches squares out of the corners and folding up the sides. The volume of the box will be 100 cubic inches. Find the dimensions of the rectangular piece of tin. Answered by Stephen La Rocque.
	A dead fly is stuck to a belt that passes over two pulleys		2009-03-21
		From Jules: A dead fly is stuck to a belt that passes over two pulleys 6 inches and 8 inches in radius. Assuming no slippage,how fast is the fly moving when the large pulley (8 inches) makes 21 revolutions per second ? How many revolutions per second does the small pulley make ? How long will it take the dead fly to travel 1 mile ? Answered by Penny Nom.
	The length of a chord		2009-03-20
		From shirley: show that the chord is equal to two times the radius time the sin of theta/2. The chord is connected to the two radii and theta is a central angle between the two radii Answered by Penny Nom.

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