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	Subtraction in a base larger than ten		2016-01-31
		Jenalee pose la question : Hello, So happy I found this site. I am having problems with bases. My question is 97B9 - 6A3A base 16 for both. Please help. Penny Nom lui répond.
	Percentage reduction		2016-01-30
		Kuuku pose la question : The daily production targets in 2000 was 60,000 units this declined to 48,000 units in 2001 but was projected that further 300units reduction would be experienced in 2002. Calculate the percentage reduction by 2002. Penny Nom lui répond.
	Prove the earth is round		2016-01-30
		Kevin pose la question : Working on a project for a science fair. To prove the earth is round without the ability to get way above the surface. How could we set up and experiment to see the curve. My thought is using a telescope at the beach? Form what we see so far the curve is 8 inches per mile? So thought is set up a telescope and a target 1 mile away? Robert Dawson and Chris Fisher lui répond.
	A quadrilateral inside a square		2016-01-30
		Subrahmanya pose la question : In a square ABCD of side 6 units P, Q are mid points of BC, CD respectively. The line segments BQ, DP intersect in R then find the area of the quadrilateral ABRD using only plane geometry. Chris Fisher lui répond.
	The diagonals of a polygon		2016-01-29
		Sofia pose la question : What are diagonals and if you drew an octagon and drew all the diagonals how many would there be? Please explain because this is pretty confusing! Thank you! Harley Weston lui répond.
	Consecutive angles of a parallelogram		2016-01-28
		Hanna pose la question : The consecutive angles of a parallelogram measures Penny Nom lui répond.
	Two increases of 20%		2016-01-27
		Z pose la question : How do I find how many books are in a library given a problem like this... The number of books increase after buying 20% more in May. The number increased again by 20% after they were given 300 books. How many books did it start with?. Penny Nom lui répond.
	Two increases of 20%		2016-01-27
		Z pose la question : How do I find how many books are in a library given a problem like this... The number of books increase after buying 20% more in May. The number increased again by 20% after they were given 300 books. How many books did it start with?. Penny Nom lui répond.
	Exponential form		2016-01-26
		Jufe pose la question : What is the exponential form of ³√11x² Penny Nom lui répond.
	A chord of a circle, the central angle and the radius		2016-01-26
		Nishan pose la question : If chord length is given along with angle then how to calculate the radius. Penny Nom lui répond.
	Exponential growth		2016-01-26
		Paul pose la question : The value of a stamp was 0.03 in 1851. The value in 2011 is $50,000. If the value increased exponentially, what is the annual growth rate? Penny Nom lui répond.
	I was paid 67% of the total owed		2016-01-25
		Julie pose la question : I was paid $27000. This is 67% of the Total Owed. The Total Owed is unknown. How do I calculate the amount of the Total Owed? Penny Nom lui répond.
	The range of a function with a finite domain		2016-01-25
		Hannah pose la question : Solve y=(1⁄4)x-1 if the domain is (-4,-2,0,2,4). I don't get how to do this. Can anyone help? Penny Nom lui répond.
	A system of linear equations		2016-01-24
		kareem pose la question : my name is kareem and i am a student i have a math puzzle and i tried to solved it but it always have same mistake x-y=9 x+z=12 z-n=14 y+n=2 Penny Nom lui répond.
	The diameter of the top of a truncated cone		2016-01-24
		Peter pose la question : I am trying to calculate the diameter of a truncated cone given one diameter the height of the cone and a 10% taper from one end to the other. For example a butter churn is 18" tall and 9" in diameter at the base. the sides need to slope inward at 10% What is the diameter at 9" and 18" Penny Nom lui répond.

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