Sujet: sign liste de sujets
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23 articles trouvés pour ce sujet.

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	Je voulais savoir d'où provient le signe # ?!		2008-01-17
		Dimitri pose la question : Je voulais savoir d'où provient le signe # ?! On l'appelle diez, sur les téléphones surtout, mais j'aimerai savoir plus précisément à quoi sert ce signe (autre que sur nos appareils) ! Et pourquoi, en anglais, s'il est placé avant un chiffre, on dit 'number' (par exemple #1, 'Number one'). Son origine m'interesse tout autant que son utilité ! Claude Tardif lui répond.
	Random assignments		2019-03-02
		Ninoshka pose la question : Liu and Michi plan to sign up for a drawing class next term. Drawing is offered during the first 4 periods of the day, and students are assigned randomly to class. What is the probability that Liu and Michi will have drawing together? Penny Nom lui répond.
	Significant digits		2017-08-06
		Pat pose la question : The directions for a problem are: "Solve the problem, expressing your answer using the correct number of significant figures." Problem 0.0043 divided by 2.04 Answer before using the correct number of significant figures is 0.002107843 Is the correct number of significant figures the number below? 2107843 Pat Penny Nom lui répond.
	The definition of percent ( % )		2015-03-07
		Kenneth pose la question : Hello: I saw this definition online from the Free Dictionary (The Free Dictionary.com) regarding the definition of percent (%): "Noun 1. a percent sign - a sign (`%') used to indicate that the number preceding it should be understood as a proportion multiplied by 100." What is this "proportion" multiplied by 100? When I think of a proportion, I think of a/b = c/d. How can a number preceding the percent sign be understood as a proportion X 100? I thank you for your reply! Chris Fisher and Claude Tardif lui répond.
	When would one flip the inequality sign?		2014-01-09
		Natasha pose la question : Would one flip the inequality symbol in this equation: (explain why) (-9a)/(-9) > 81 And please explain in what circumstances one would flip the inequality sign THANKS! Penny Nom lui répond.
	Changing the sign of an inequality		2012-09-19
		Bryauna pose la question : Why do you change the signs in inequalities?! Penny Nom lui répond.
	I have a sign size regulation I have to meet.		2010-10-26
		Scott pose la question : I have a sign size regulation I have to meet. The size is .6 meters squared. at first look this would be 2 ft x 2 ft. I believe it would be larger then that. Can you confirm what the size would be in inches please. Penny Nom lui répond.
	How many zeros?		2010-03-18
		jeff pose la question : 1 light yr is 6,500 billion miles, the galaxy "Andromeda" is 2,500,000 million light yrs, how many zeros are in this equation ? Robert Dawson lui répond.
	-5^2= -25		2009-05-06
		tracy pose la question : show how to perform this calculation and why -5^2= -25 Robert Dawson lui répond.
	Conversion factor		2009-03-23
		kab pose la question : 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? Harley Weston lui répond.
	Alpha level		2008-07-23
		anonymous pose la question : What is the advantage of using an alpha level of .01 versus a level of .05, What is the disadvantage of using a smaller alpha level? Janice Cotcher lui répond.
	The sign of the quotient of two integers		2008-02-01
		michelle pose la question : without actually dividing, how can you decide whether the quotient of two integers is A. positive B. negative C. 0? Penny Nom lui répond.
	A statistical difference		2007-07-03
		a student pose la question : I am writing a paper for a grad class in which I am comparing achievement levels of boys and girls. I have data that shows the average marks for girls and boys in each grade 12 subject for the entire province. My prof want me to show there is a statistical difference. What do I have to do to show this? I don't have access to the raw data, so don't know the SD. Is there anything I can do mathematically with the data that I have? (I can determine n for each set of data, it ranges between 2400 and about 13000 for each subject area.) Chris Fisher and Harley Weston lui répond.
	An octagonal sign		2007-05-13
		Cathy pose la question : An octagonal sign is made by cutting four identical triangles made from a rectangle calculate area of one of the discarded triangles. length of square=26cmx22cm. length of octagonal sides are 10cm x 13cm Penny Nom lui répond.
	Is -2^2 = -4 or 4?		2007-01-23
		Joan pose la question : Is -2 squared, when written without parentheses around the -2, -4 or could this correctly be solved by squaring -2 (-2 x -2) for an answer of 4? Or, to correctly get an answer of 4, would the problem have to read (-2) squared? Stephen La Rocque lui répond.
	Octagonal Stop Sign		2006-10-23
		Phil pose la question : My colleagues and I are in a discussion about how many true "sides" an octagonal stop sign has. I say that it has 10 true sides because of the front back sides of a stop sign (3D octagon). Is this correct terminology or should the front and back "sides" be referred to as faces -- equaling 2? Paul Betts, Steve La Rocque and Harley Weston lui répond.
	Frieze patterns		2004-05-19
		Christina pose la question : How can I prove that there are only seven unique geometric frieze patterns? Penny Nom lui répond.
	7,473,000,000 divided by 52000		2003-09-06
		A student pose la question : I am having trouble with a question. 7,473,000,000 divided by 52000. Our calculater gets 147311.5385. I come up with 143711.53846, and then the number starts to repeat itself Penny Nom lui répond.
	Making a blanket		2003-08-13
		Liz pose la question : Please help me figure this out. I am making a blanket the directions call for a piece of material measuring 72"X45". Instead of one piece I'd like to make a patchwork quilt but the squares need to equal 72"X45". Centered on the bottom of the longest edge is an 18" square. Harley Weston lui répond.
	Rounding 27.27		2002-11-03
		A parent pose la question : If you have a problem 27.27 and you need to round to the first 7 the answer would be 27 Would 27.0 be acceptable as well or is it completely wrong. Penny Nom lui répond.
	On which assignment did I do better		2002-05-17
		Denise pose la question : I have 2 writing assignments in class. The first assignment, which had a mean of 10 and a standard deviation of 2, I got a score of 12. The second assignment had a mean of 18 and an s.d. of 3, I got a 21. I need to know which assignment did I do better, relative to my classmates? Andrei Volodin lui répond.
	Frieze Patterns		1998-08-19
		Brian Bairstow pose la question : I am doing a research project on frieze patterns (also called band patterns or border patterns). I know that there are exactly seven different types of frieze patterns, but I have been unable to find a proof for this. If you could tell me this proof, or tell me some internet sites on which I can find material on this, I would be very grateful. Chris Fisher lui répond.
	Cos(x) Cos(2x) Cos(4x)=1/8		1997-09-24
		Tan Wang pose la question : How many distinct acute angles x are there for which cosx cos2x cos4x=1/8? Chris Fisher Harley Weston and Haragauri Gupta lui répond.

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