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

		Page 811/886

	Repeating decimal notation		2000-12-31
		Clarende Duby pose la question : I have seen single repeating decimals for ex. 1/3 = 0.3 with the dot above the 3 to represent the repeating decimal. Then, there is the more common form of the bar over the top of the repeating number or group of numbers (called the period?). Which notation is correct? Penny Nom lui répond.
	Bush fractals		2000-12-30
		Anita Wisecup pose la question : My son has a report due on fractals. He needs information on bush fractals, but we cannot seem to find anything out about them. Penny Nom lui répond.
	Solving x - sin(x) = constant		2000-12-29
		Keith Roble pose la question : If x is in radians, how do you solve for x, where: x-sin(x) = constant? Harley Weston lui répond.
	Solving an equation		2000-12-29
		Bob pose la question : Would you be able to help me solve this math equation.. Solve for b, 2 [b - (q + s)] / q = s Penny Nom lui répond.
	A pair of numbers whose GCF is 28		2000-12-27
		John pose la question : Name 2 different pairs of numbers whose GCF is 28. Penny Nom lui répond.
	Some prime conjectures		2000-12-24
		Tarrasita pose la question : I was given some homework to investigate the following conjectures on prime numbers 1) There is at least one prime between consecutive square numbers. 2) Every prime except 2 and 3 is of the form 6n+1 where n is a natural number. 3) Any odd prime which is of the form 4n+1 is equal to the sum of two perfect squares. Harley Weston lui répond.
	A lampost and its shadow		2000-12-24
		Laura pose la question : A lamppost line EC casts a shadow line AC. A 30 cm ruler line DB has been moved from A so that it's shadow falls just within the shadow of the lamppost. Suppose the length of the ruler's shadow is 42 cm. What is the slope of the imaginary line AE? Suppose the lamppost's shadow is 15 m. long. How tall is the lamppost? Penny Nom lui répond.
	Cats and dogs		2000-12-24
		A student pose la question : Brian has fourteen pets. All of his pets are cats and dogs. Brian has four more cats than dogs. How many dogs does he have? Penny Nom lui répond.
	Calculating the tax		2000-12-22
		A grocer pose la question : I have a small grocery store. I have a bag of money containing $325. This represents the mornings receipts and a tax of 5.75% is included in the total. How can I separate the gross take from the tax take so that I'll know how much is mine and how much is the state's? Penny Nom lui répond.
	How do you integrate secant(theta)?		2000-12-22
		Robert Williamson pose la question : How do you integrate secant(theta)? I know the answer is ln [sec(theta) + tan(theta)] but how do you get there? Claude tardif lui répond.
	An infinite series		2000-12-16
		John pose la question : summation(n=1 to infinity)[n sin(1/(2n))]n Harley Weston lui répond.
	Calculer la hauteur de chute de cette pierre		2000-12-16
		Marcus pose la question : Une pierre tombe au fond d'un puit, à 5 secondes on entend un son (de la pierre). Calculer la hauteur de chute de cette pierre en tenant compte de la vitesse du son = 340m.s-1 Il faut savoir que pour la chute libre v= g.t ; h = 1/2 g.t2 ; v = 2g.h g intensité du champs de pesanteur = 10 ; h hauteur de chute. Claude tardif lui répond.
	A Trapezium problem		2000-12-15
		Ben pose la question : A trapezium has a perimeter of 22cm. The 2 parallel sides are such that the length of one is three times the length of the other. The non-parallel sides are equal. If the distance between the parallel sides is 4cm, find the lengths of the 4 sides. Claude Tardif lui répond.
	Factoring (u-v)3+v-u		2000-12-15
		A parent pose la question : I am a middle school teacher and a parent. I am snowed in and trying to help my 9th grader get ready for 9 weeks exams. I have tried to factor this problem to no avail. (u-v)^3+v-u. I have the answer but I need to know how it is done. Penny Nom lui répond.
	When did the man go out?		2000-12-14
		Rajesh pose la question : A man goes out in time between 5 and 6 and when he comes back he observes that two hands have interchanged position. Find when the man did go out? Penny Nom lui répond.

		Page 811/886