Voici les articles les plus récents de notre base de données:
nouvelle recherche

		Page 686/886

	A square footage problem		2004-10-19
		Jerome pose la question : I have a peice of property that is almost a triangle but not exactly about 280 frontage with the side lines at 228 and 237 I was told I had about one acre plus a little, a developer says I have 33,000 sq ft. and I would like to know what the real result is Penny Nom lui répond.
	Manipulating exponents		2004-10-17
		A student pose la question : I was wondering if you can describe the steps in getting the solution to the problem below. I have the solution of 5/3 in the back of a book, but I have no idea how that answer was reached. 2raised to the 100th power + 2raised to the 98th power divided by 2raised to the 100th power - 2raised to the 98th power Penny Nom lui répond.
	The third derivative		2004-10-15
		Holly pose la question : Why would you ever take the third derivative? Harley Weston lui répond.
	A rate of change problem		2004-10-15
		Frank pose la question : Find the rate of change of the distance between the origin and a moving point on the graph of y = x(squared) + 1 if dx/dt = 2 centimeters per second. Penny Nom lui répond.
	Two gears		2004-10-14
		Lindsay pose la question : "There are two gears, a small one on the left and a larger one on the right. The gear on the right makes 1 revolution. The gear on the left makes two revolutions. Suppose the gear on the right is turned through an obtuse angle. Will the gear on the left make a full turn?" Penny Nom lui répond.
	Divisibility by 7 and 11		2004-10-13
		Tammy pose la question : I'm stuck in class in Yr 7 And I'm finding it hard on our new topic Divisibility! When I try to find out what this means on Internet sites i can not understand the used symbols like algebra and so on. I'm stuck on the divisibility rules for the number 11! Penny lui répond.
	$25,000 at 11% per year		2004-10-13
		A student pose la question : suppose u have $25,000 to invest and the interest rate at your bank is 11%. 1) how much money would you have at the end of EACH of the first four years? 1) i already kno that the first year w/ interest is $27,750 but how do i get the 2nd? 3rd? 4th? years? Penny lui répond.
	Pythagoras in everyday life		2004-10-13
		Tiffany pose la question : I was wondering if you have any real-life uses of the pythagorean theorem that you use in your everyday life. Penny Nom lui répond.
	Cycling in the wind		2004-10-11
		A student pose la question : A cyclist is travelling in the direction of 12i+5j at a speed of 39 km/h where i is a unit vector due east and j is a unit vector due north. The wind appears to the cyclist to be blowing with a velocity of (-4i+j) km/h. Find, correct to 1 d.p (a) the true speed of the wind and (b) the bearing from which the wind is blowing Penny Nom lui répond.
	An Octagon		2004-10-10
		A parent pose la question : I am trying to determine what the size of each triangle is of a 12 foot circle consisting of 8 triangles would be. I've gotten as far as the radius being 6 feet, but cannot figure the distance. Penny Nom lui répond.
	A five digit number		2004-10-06
		A parent pose la question : What is the 5 digit number in which the first 2 digits are the square of the 3rd digit and the last 2 digits are the square of the digit that is one less than the third digit? The sum of all the digits is 22. Penny Nom lui répond.
	A common tangent line		2004-10-05
		Shanup pose la question : The x-axis is a common tangent of y = x^2 and y = x^3. Find the equation of another common tangent. Penny Nom lui répond.
	Direct and inverse variation		2004-10-05
		Abraham pose la question : Given that y varies inversely as x and x varies directly as z.If z is doubled then y is halved.Why is that true.Please explain.I'm having trouble understanding the different types of variation Penny Nom lui répond.
	Accelerating to the speed of light		2004-09-30
		Lars pose la question : How long time would it take to accelerate up to the speed of light with an acceleration speed similar to 0-100 seconds in 5 seconds? Penny Nom lui répond.
	A mixture problem		2004-09-30
		Abraham pose la question : A chemist has one solution that is 35% pure acid and another solution that is 75% pure acid. How many cubic centimeters of each solution must be used to produce 80 cubic centimeters of solution that is 50% acid? Penny Nom lui répond.

		Page 686/886