Sujet: let liste de sujets
nouvelle recherche

56 articles trouvés pour ce sujet.

		Page 1/1

	Marie achète un croissant et une tartelette		2004-02-01
		M. et Mme Simoneton pose la question : Marie achète un croissant et une tartelette. Elle paie 1,64 € Isabelle achète un croissant et un pain au chocolat. Elle paie 1,51 € Marc achète un poain au chocolat et une tartelette. Elle paie 1,77 € Trouver le prix d'un croissant, d'une tartelette et d'un pain au chocolat. Claude Tardif lui répond.
	Minesweeper		2001-10-24
		Un eleve pose la question : J'espere que vous pourrez m'aider. Est ce que vous connaissez un algorithme ou une strategie de resoulutiom pour le jeu du demineur (8x8 avec 10 mines)(Minesweeper). Claude Tardif lui répond.
	Sens d'un mot		2000-06-01
		Edward Brisse pose la question : Serait-il possible de connaître le sens précis du mot "PORISME". Exemple : "le porisme de Poncelet". Claude Tradif lui répond.
	Strings of letters		2022-04-25
		Javar pose la question : How many different combinations can I make with A 12 selection list but only using A&B Example: A,B,A,B,A,B,A,B,A,B,A,B A,B,B,A,A,B,B,A,A,B,B,A B,B,A,A,B,A,B,A,B,A,A,B penny Nom lui répond.
	Beginning algebra		2019-11-19
		Maya pose la question : Two numbers have a sum of 57. Three times the first number is 13 less than the second number. Find the numbers. Use let statements to help you solve. (Grade 9 math) -Maya (help would be appreciated) Penny Nom lui répond.
	Retiring athletes numbers		2017-12-18
		Robin pose la question : I am wondering if you can explain in layman terms how to figure out how many different ways the numbers 00-99 can be arranged? The discussion that sparked this question revolved around the practice of retiring athletes numbers and how many actual number combinations there are. So if I were to use 00, 01, 02 03, 04, 05, 06, 07, 08, 09, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ....99. I say there are only 109 different numbers. I'm being told I'm wrong that there are way more than that. Please help. Thank you, Robin Penny Nom lui répond.
	Doubling the area of a pamphlet		2015-10-31
		Mariam pose la question : A pamphlet has the following dimensions: 4 cm by 6 cm If the area of the pamphlet is doubled, what will be the length of each side if sides can be integer values only? Penny Nom lui répond.
	The center and radius of a circle		2015-02-06
		ariana pose la question : I need to find the center and the radius of this circle. I don't know how to put 9/2 than square it into a fraction. x^2 + 2x + y^2 +9y=5 Penny Nom lui répond.
	Arrangements of ten letters		2011-04-15
		Mustafa pose la question : In how many ways can the ten letters of the word GELATINOUS be arranged in a line so that the vowels are in alphabetical order (not necessarily together) when read from left to right? Penny Nom lui répond.
	Six-letter words		2009-11-24
		christine pose la question : How many six-letter words (not necessarily an English words) are there in which exactly three of the letters are z's? Claude Tardif lui répond.
	A sequence of letters and numbers		2009-11-10
		Maria pose la question : What is the last ten letters and numbers in the following series and how do I work it out so I can explain it to an eleven year old. J1F8M1A0M1J0J1 Robert Dawson, Claude Tardif and Harley Weston lui répond.
	Completing the square		2009-10-02
		christopher pose la question : how do i find the factors of x^2+3x+2 by completing the square ? Robert Dawson lui répond.
	The inverse of F(x)=x^2-6x+13, for x>3		2009-07-26
		Juan pose la question : The function F is given by F(x)=x^2-6x+13, for x>3. A. Write F(x) in the form (x-a)^2+b B.Find the inverse function F^-1 C.State the domain of F^-1 Penny Nom lui répond.
	Completing the square		2009-06-16
		rebecca pose la question : Find the roots of the equation by Completing the square. Express your answer in exact form and in decimal form to 2 decimal places. a) x(squared)+10x+23 b)3y(squared)+12y+3 Stephen La Rocque lui répond.
	Completing the square		2009-04-27
		Daniel pose la question : I tried following an example of yours but I still couldn't figure it out. Here is my question, 2x^2 - 6x + 1 = 0. Any help would be greatly appreciated. Stephen La Rocque lui répond.
	Some 9 letter permutations		2009-02-24
		Cecilia pose la question : If the letters G, H, S are used exactly 3 times how many 9 letter combinations can be generated? Penny Nom lui répond.
	A wine decanter		2008-12-10
		Suzanne pose la question : I am trying to buy a wine decanter for my dad for Christmas. One big problem I am having shopping online is finding the right size. Wine is sold by metric ml, with a standard bottle holding 750ml of wine. Decanters are measured by oz, and the sizes are all over the place, with one site alone having sizes 25oz, 26 1/2oz, 50oz, 59 1/8oz, and 68oz. Can you help me with metric conversions so I can figure out how much wine these decanters hold? Like everybody else, I need this as soon as possible so I can get it shipped in time for Christmas. (I'm disabled & don't drive, so online shopping is my only way to get gifts.) Thanks for your help! Suzanne Chris Fisher and Robert Dawson lui répond.
	Factor 9x^2 + 6x + 4		2008-11-21
		Jonah pose la question : how can i solve this by factoring: 9x^2 + 6x + 4 Harley Weston lui répond.
	Three letter combinations		2008-08-15
		Shelbie pose la question : How many 3 letter combinations are possible, if you can repeat each letter? I learned an easy way to do this in school, but fail to remeber what that was... Penny Nom lui répond.
	A rectangle word problem		2008-04-10
		Nick pose la question : A rectangle is twice as long as it is wide. If the length and width are both increased by 5cm, the resulting rectangle has an area of 50cm^2. Find the dimensions of the original. Penny Nom lui répond.
	A chain letter		2008-04-10
		Lesley pose la question : In the mail you receive a chain letter with a list of ten names on it. The instructions tell you to send $2 to the person named on the top of the list, cross his name out, and place your name on the bottom. YOu then have to send ten copies of this letter to friends with the same instructions. If no one breaks the chain how much money should you receive? Stephen La Rocque and Harley Weston lui répond.
	Complete the square		2008-04-09
		jessica pose la question : can you check my answer please thanks f(x)=2x^2-4x+5 I got 2(x+2)^2-3 for when it asked to simplfy it to standard form of a quadratic equation Stephen La Rocque lui répond.
	Complete the square		2008-04-09
		jessica pose la question : Use the technique of completing the square to put f(x)= 2x^2-4x+5 in the form f F(x)= a(x-h)^2+k were h,k=vertex of the parabola. identify the coordinate (h,k)of the maximum or minimum point of the associated parabola Penny Nom lui répond.
	Completing the square		2008-03-11
		Ryan pose la question : solve for x by completing the squares, x^2+4x-8=0 Stephen La Rocque lui répond.
	Permuting the letters in ELEVEN		2008-01-23
		Beth pose la question : (i) Find the number of distinct permutations that can be formed from all of the letters of the word ELEVEN. (ii) How many of them begin and end with E? (iii) How many of them have the 3 E's together? (iv) How many begin with E and end with N? Stephen La Rocque lui répond.
	Find the lengths, and explain in a 'let statement'		2007-12-20
		Cordilla pose la question : the length of the sides of a triangle are 3 consecutive whole numbers. The perimeter of the triangle is 102 meters. Find the lengths, and explain in a' let statement'. Stephen La Rocque and Harley Weston lui répond.
	More on completing the square		2007-11-29
		June pose la question : x^2 - 6x = 16 I found you already had this question but the answer you gave did not help me to explain how to answer the problem for my daughter. I do not understand how to complete the square for this paticular question and the example you showed did not help. I would appreciate any further help you could give me. Penny Nom lui répond.
	Completing the square		2007-11-26
		Julie pose la question : x^2 - 6x = 16 Please, Help I am stuck on this math problem. I need to solve by completing the square. I need the steps of solving the problem and the answer, Please. Penny Nom lui répond.
	Completing the square		2007-11-01
		Mark pose la question : An architect is designing a museum entranceway in the shape of a parabolic arch represented by the equation y = -x2 + 20x, where 0 x 20 and all dimensions are expressed in feet. Determine the maximum height, in feet, of the arch. Stephen La Rocque lui répond.
	What fraction of the letters of the alphabet is each word?		2007-08-02
		Clayton pose la question : How do I figure this out, the math question has the answers but I have no idea how to get it. my Mom can't figure it out either. What fraction of the letters of the alphabet are each word Man = 3/26 Glasses = 7/26 Integrity = 1/4 computer = 2/9 Paul Betts and Harley Weston lui répond.
	An athletic track		2007-07-30
		tammy pose la question : The inner boundary ABCDEF of an athletic track cinsists of two straight parts each 90m long and two semi circular ends as shown in the diagram.If the perimeter of the inner boundary is 400m, calculate the diameter AE of the inner semi circle. Part 2. If the track is 3.5m wide an athlete starts the 400m run at X and remains in the outer lane . He finishes at Y(1) Calculate the outer diameter YZ (2)The distance XY (take pie as 22/7) Penny Nom lui répond.
	Using Heron's Formula to help maximize the area of a triangle		2007-06-27
		Claire pose la question : Given one side of a triangle is 4 cm and the ratio 1:3 for the other 2 sides. What is the largest area of the triangle? Stephen La Rocque and Harley Weston lui répond.
	Finding the center of an ellipse		2007-06-20
		Sima pose la question : find the center of the ellipse with the equation 3x^2 +4y^2+18x-32y-5=0 Penny Nom lui répond.
	Factor Completely		2007-05-29
		Ema pose la question : Question 1: Factor completely. 3x(x – 4) + 5(x – 4) Question 2: Factor completely. x^2 + 2x + 3 Penny Nom lui répond.
	mls and grams		2007-01-19
		JJ pose la question : If I have a 2000litre pool and need to put 2mg of chlorine per litre, how many mls do I need to add? Penny Nom lui répond.
	I have to design a lettering on corrugated plate		2006-11-29
		Tim pose la question : For a client of mine I have to design a lettering on corrugated plate. The lettering has to appear "normal" when viewed from the front (100%) I am so far now to consider the shape of the plate to be two halves of an oval/ellipse. What I would like to know is a way to calculate the percentage in which I have to "stretch" my design in order to let it appear "normal". Stephen La Rocque and Penny Nom lui répond.
	Sally plays roulette		2006-11-21
		Sherry pose la question : Sally plans to bet 100 bets of $1.00 each on red roulette. the probability of the ball landing on red is 18/38 what is the probability that Sally will win at least half the time Penny Nom lui répond.
	How much did I have in my wallet when I lost it?		2006-06-15
		Marangeo pose la question : I recently lost my wallet and when it came to completing the police report I couldn't remember how much money I had in there. I do remember thinking that the first time I bought something that it cost me 10 per cent of what I had. Then I noticed that the second purchase had also cost me exactly 10 per cents of what I had left. My receipts totalled $19. How much did I have in my wallet when I lost it? Stephen La Rocque lui répond.
	How many arrangements are there?		2006-04-16
		Jim pose la question : Can you tell me how many different combinations there are using 3 letters and 4 numbers. Letters first then numbers, example -aaa0001, aaa0002, aaa0003,-----------baa0001, baa0002, ------zzz9999. Stephen La Rocque lui répond.
	Seven consecutive reds in roulette		2005-09-04
		Joe pose la question : I know that the odds are a little less than 50% for either black or red comming up on a spin of the roullette wheel. My question is what are the odds of red or black comming up 7 times in a row? Penny Nom lui répond.
	Aunt Lucy's letter		2004-06-27
		Olivia pose la question : "Dear bob, now that i am getting on (70 today). i want to give you some of my money, i shall give you a sum each year, starting now. you can choose which of the following schemes you would like me to use. a) £100 now, £90 next year,£80 the yaer after and so on. b) £10 now, £20 next year, £ 30 the next year and so on. c) £10 now, 1.5 times as much next year, 1.5 times as much the year after that and so on. d)£1 now, £2 next year, £ 4 the year after, £8 the year after and so on. of course these schemes will only operate while i am alive. i look forward to hearing which scheme you choose and why! Best wishes, Aunt Lucy." Penny Nom and Claude Tardif lui répond.
	The quadratic formula		2003-08-31
		Alex pose la question : I am using Houghton Mifflin's Precalculus with Limits book, 2nd edition. However, the first chapter encompasses Algebra review, and I am stuck on a problem. All that's required is to solve the following and verify using a calculator: 3y2+6y+2=0 I have solved the problem using the quadratic formula, but from what I remember, the quadratic formula is used in the case of equations following the AX2+BX+C=0 pattern. As the problem I am attempting uses a y-variable, can I still use the quadratic formula? Since I am not sure what route to take in solving this problem, I am hoping you can assist me. Harley Weston lui répond.
	Percentage change in completion rate		2003-02-21
		Remo pose la question : In the year 2000 300 out of a possible 600 completed a phone survey for a total of 50% completion rate. In the year 2001 20 out of 100 possible people completed the survey when it was re-done. This is a completion rate of 20% To figure out the percentage change between the years can just use the difference between the percentage figures I already have? Or can I calculate it the same as you would for non-percentage numbers. For example you gave an example here of a salary increase from $20 to $95 being an increase of 375%. Would I solve my problem the same way expect substituting my percentages (.5 and .2) in place of $20 and $95? Penny Nom lui répond.
	Jack and Jill wrote letters		2002-06-19
		Angel pose la question : jack and jill each bought a stationary # of sheets of paper in each box were the same # of envelopes were the same jill wrote letters consisting of 3 pages jack wrote letters consisting of 1 page when they wrote all letters jill had 50 envelopes left and jack had 50 sheets of paper left how many pieces of paper and how many envelopes? Leeanne Boehm lui répond.
	Factor 12x^2 - 20x - 8		2002-04-30
		Crystal pose la question : Factor Completely: 12x2 - 20x - 8 Penny Nom lui répond.
	Solving x^2-3x+5=0		2001-11-30
		Katy pose la question : How do you find the solution to x2-3x+5=0? Penny Nom lui répond.
	Four sequences		2001-09-24
		Nicole pose la question : I have a few questions I couldn't figure it out. So any help will be great to find the next three numbers or letters. Here's the patters... DEGHNORY, EHILMU, HIILMTU, BEILLMRUY,... 50, 33, 25, 20, 16, 14, 12,... 1777, 1795, 1818, 1819, 1820, 1822, 1836, 1837.. A,H,I,M,O,T,... Chris Fisher and Penny Nom lui répond.
	Fourier transform		2001-08-07
		Adbul pose la question : Sir, we have the Dirichlet's condition for the Fourier transform : " The function should be integral over the real line " But why we are we neglecting this for example when we take the Fourier transform of an impulse train? Suppose we want to travel from one corner of a square of side 'a' to the diagonally opposite corner. We can travel along the sides which gives a pah length of '2a'. We can also do it in steps as shown below: _ | |_PATH | |_ |_____| Suppose The step size =DELTA x Then the path length will be again '2a'. Now in the limit DELTA x -->0 again we get '2a' But when we take the limit we get the straight line diagonal whose length is 'SQRT(2)X a' Where did I go wrong? Chris Fisher lui répond.
	Election in Angletown		2001-06-07
		Zoe pose la question : At the last school election in Angletown 4620 votes were cast. Candidate Acute received 236 more votes than Candidate Obtuse. Candidate Right received 698 votes more than Candidate Acute. Candidate Straight received 256 votes less than Candidate Right. How many votes did each receive? Penny Nom lui répond.
	Spins of a roulette wheel		2001-03-02
		Bob pose la question : Here's a problem I'm working on myself.....If you look at six consecutive spins of a roulette wheel, how many combinations of red and black are possible? I.E. BRRBRB, BBBBBR, BBRRRB......ETC..... Claude Tardif lui répond.
	Completing the square		2001-01-12
		Jacky Lam pose la question : A friend told me that completing square not only can find the vertex but also the roots of a quadratic equation. Is it possible? How? Can you show me how to find the roots of the following equation using completing the square? 8x2 + 8x + 4 Penny Nom lui répond.
	Completing a square		2000-07-10
		Lexa Michaels pose la question : How do you complete a square? the textbook question is: x 4 + 64 Penny Nom lui répond.
	Six letter words		2000-05-15
		Karl Freitag pose la question : An anthroplogist discovers an isolated tribe whose written alphabet contains only six letters (call the letters A,B,C,D,E, and F). The tribe has a taboo against using the same letter twice in the same word. It is never done. If each different sequence of letters constitutes a different word in the language, what is the maximum number of six-letter words that the language can employ? Penny Nom lui répond.
	Completing the square		2000-03-11
		Sandra pose la question : How do i complete the square and leave in simple radical form? x squared + 18x - 17=0 Penny Nom lui répond.
	The Quadratic Formula		1999-01-22
		Eric Morgan pose la question : Hi my name is Eric Morgan and I m in 8th Grade honors math (middle) and I'd like to know how to prove the quadratic formula -b±sqrt of b(a)(c)over 2(a) Penny Nom lui répond.
	A Puzzle		1998-10-27
		Bruce Bragnu pose la question : We are trying to solve what SHOULD BE a simple 7th grade problem and have run into a wall. It is: ABCD ABCD ABCD ABCD ------- EBEA It is an addition problem. Each particular letter represents the same digit. We are looking for what number "B" represents. We have tried a multitude of solutions and have come up empty. Penny Nom lui répond.

		Page 1/1