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	un jardinier plantent 10 arbres		2007-09-30
		yannick pose la question : un jardinier plantent 10 arbres.il a reussi a les disposer en formant 5 ligne de 4 arbres. retrouver une disposition possible Claude Tardif lui répond.
	-1 exposant 4		2004-12-19
		Denis pose la question : ma question est : -1 exposant 4 = ? Quand nous avons une base négative sans parenthèse comme ma question Diane Hanson lui répond.
	16 golfers		2009-03-18
		Bill pose la question : We have 16 golfers. We golf for 5 days, in foursomes. It should work out that each player plays with each other player 1 time exactly. I just can't figure it out. Thank you in advance! Bill Claude Tardif and Victoria West lui répond.
	sec(pi/12)		2022-03-23
		Diana pose la question : Please help me find the exact value of the following trigonometric expression: sec(pi/12). Thanks! Harley Weston lui répond.
	UFO speed in MPH from nearest galaxy in one year		2021-05-22
		Joe pose la question : If the next closest galaxy is 15 quadrillion miles away and there are 8760 hours in one year; how fast would a UFO have to fly to travel from the next galaxy, in MPH in one year ? Google calculator gives this result: 1.7123288e+12 I don't understand what the "e+12" means. How is that pronounced, ex. trillion, quadrillion etc..? Harley lui répond.
	1 square cm is 100 square mm		2020-06-19
		macie pose la question : explain why the conversion factor for cm squared to mm squared is 100 ,and not 10 Penny Nom lui répond.
	A 50:1 ratio in a pint		2020-05-22
		Steve pose la question : How much oil do I need to put in a pint if it's 50:1 ratio Harley Weston lui répond.
	Covering 1 acre, 6" deep		2020-03-02
		Jim pose la question : How many cubic yards does it take to cover 1 acre 6" deep. Thank you Also, can you show me how you determined that answer. Penny Nom lui répond.
	Arranging 10 digits		2019-10-09
		Laxmi pose la question : 1)The integers 0 to 9 are arranged along a straight line in some order.a) find a possible arrangement in which the sum of any three adjacent numbers is less than 15.b)is there an arrangement of this kind 0 is not included in the numbers. Penny Nom lui répond.
	Can one equation with two variables be solved algebraically?		2019-08-30
		Don pose la question : Can one equation with two variables be solved algebraically? Penny Nom lui répond.
	One part in 10^x		2019-06-26
		Jim pose la question : What is the meaning of the phrase ‘one part in 10x” where the x is an exponent? I have seen these examples: “...better than one part in 10x” and “...to within one part in 10x.” Penny Nom lui répond.
	A triangle made from 12 matchsticks		2019-01-20
		Palesa pose la question : How many different types of triangles can be made with a perimeter of 12 matches? Penny Nom lui répond.
	A puzzling equation		2018-12-04
		Manny pose la question : Hello, Can you explain why this is wrong: -1 = (-1)^3 = (-1)^{6/2} = ((-1)^6)^{1/2} = (1)^{1/2} = 1 ?? Thank you Penny Nom lui répond.
	Why 1/3 in the volume of a cone?		2018-10-20
		Keith pose la question : In the formula for the volume of a pyramid, Volume = 1/3 * base * height, where does the 1/3 come from, intuitively? Penny Nom lui répond.
	Golf schedule for 12 players over 8 days		2018-09-03
		William pose la question : We have a golf trip with 12 golfers we are playing 8 rounds together......we want to mix the group up at best possible w/o too much overlap....... thoughts? the math is way over my head... even if we play the first 6 rounds with different partners, then the last 2 can be repeats ...or whatever the math works out Penny Nom lui répond.
	Graphing y = 2x - 1		2018-03-12
		Himanshu pose la question : Hi I Himanshu I having 1 doubt on 1 question this question of graph how to draw y=2x-1 Penny Nom lui répond.
	A fraction of a mile		2018-01-06
		Sierra pose la question : There are 5280 feet in a mile. what fraction of a mile is represented by 660 feet? Penny Nom lui répond.
	Four multiples of 10		2017-09-23
		Laudacir pose la question : Four multiples of 10 are added together.the total is a 3 digit number with three consecutive digits. What could the four number be? Penny Nom lui répond.
	Factorials		2017-07-27
		dinesh pose la question : Is there any shortcut formula for multiply series numbers. like 1x2x3x4x5.......x100 =? Penny Nom lui répond.
	3 consecutive multiples of 11		2017-07-22
		nisha pose la question : using the multiples formula shown at ypur site how can we solve finding 3 consecutive multiples of 11 whose sum is 363 Penny Nom lui répond.
	y = g(x + 1)		2017-06-27
		Shamsudiin pose la question : HI there i am currently doing a level maths AS I don't understand how to graph this Question y=g(x+1) i really need help please please respond to this problem Penny Nom lui répond.
	Solve the equation completely cos 2x = 1		2017-06-08
		Lava pose la question : Solve the equation completely cos 2x = 1 Penny Nom lui répond.
	A limit		2017-05-14
		Soham pose la question : Find out the value of the following: lim (x+x^2 +x^3 +.........x^n–n)/(x–1) x→1 Penny Nom lui répond.
	A function which is onto but not one-to-one		2017-04-16
		Avinash pose la question : Define a function f(x):N-->N which is onto but not one-one.Where N is set of natural numbers. Penny Nom lui répond.
	2^a, 2^b, 1^1 and 1^0		2017-03-17
		Émile pose la question : If you had 2^a = 4 and 2^b = 4 you could assume that a = b right? Yet we can observe that 1^1 and 1^0 both equal 1, yet 1 = 0 isn't true. So if given a log base 1 number 1 the would the answer be 1 AND 0? Penny Nom lui répond.
	One millionth of one percent of 90,000,000,000		2017-01-16
		Gene pose la question : What absolute number is one millionth of one percent of 90,000,000,000 Penny Nom lui répond.
	x^2 = -16		2016-12-12
		A student pose la question : x to the second power = -16 what number solves the equation? Penny Nom lui répond.
	A 1.4 acre square		2016-06-28
		Jamie pose la question : Dear Faithfullness, I was previously to be purchasing a square 1 acre plot, which I believe was to have 209feet, 4 sides perimeter. How big would a 1.4 acre site be? In sq feet length ie original 209ft + (the adeed 0.4) Penny Nom lui répond.
	tan15°		2016-04-11
		JOHN pose la question : find the exact value of tan15° in surd form. Penny Nom lui répond.
	The diagonal of a 10 acre square		2016-04-11
		Derrick pose la question : I own 100 acre square of land. I want to run from farthest corner of property to farthest corner, Diagonally. How many miles would I have traveled? Penny Nom lui répond.
	tan inverse 1/4		2016-03-14
		nazz pose la question : prove; tan inverse 1/4=1/3 cot inverse 52/47 Chris Fisher lui répond.
	Can you construct a regular 21-gon?		2016-03-08
		Peter pose la question : hi, i know that if i use a compass to draw a circle, i can use the same setting to mark 6 intervals along the circle circumference, how would i go about marking out 21 equally spaced points around the circumference? if there an online calculator i can us, or some other interesting trick? tia peter Robert Dawson lui répond.
	A 13 game bet		2016-02-28
		farah pose la question : I'm trying to calculate the odds of a 13 game bet. Each game has 2 teams with 3 possible outcomes (win,draw,lose). What are the odds. Penny Nom lui répond.
	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.
	A schedule for a league with 15 teams		2015-12-05
		Zac pose la question : Hello, I have a league schedule question. We have a league where we have say have 15 teams. Each team is to play each other twice during a 10 week session. However each team tries only to play 3 matches(teams) per night(week). How would we set up a random schedule for the 10 week session? Victoria West lui répond.
	A schedule for 12 high school golf teams		2015-11-15
		Jason pose la question : I have 12 high school golf teams (A - L). There will be 4 games each week for 4 weeks. For each game, 3 teams play at a time (A vs B vs C). I would like it where no team plays the same team twice. Week four is my issue as I seem to always have a team or two playing the same team again. Is it possible to have each team play each other only once? Victoria West lui répond.
	The derivative of x^1/3		2015-11-08
		omar pose la question : hi can help me am teacher ask me about x^1/3 Derivation definition . Penny Nom lui répond.
	A 15 team tournament		2015-10-28
		Joseph pose la question : We have a 15 team tournament. Each team plays all other teams. We need a schedule were each game has a work team. Thus at each fields we have two teams playing and one working. All teams need to play each other and also be a work team. Any help would be appreciated!! Victoria West lui répond.
	11 golfers over five rounds		2015-10-15
		Leo pose la question : 11 golfers over five rounds. Will golf as 4-4-3. How to set it up so everyone plays at least once with each player. Victoria West lui répond.
	A schedule for 16 teams		2015-10-14
		Ellen pose la question : I will have 16 teams. I would like to figure out how I can have 4 groups of 4 teams playing in hour increments, but never meeting more than once. How do I accomplish this? Thank you so much for any help you can give to me. . Victoria West lui répond.
	18 golfers playing four rounds		2015-09-09
		Paul pose la question : I have 18 golfers playing four rounds. I want two 3 balls and three 4 balls each day. I don't want anyone to play in a 3 ball more than once and I don't want anyone to play with the same person twice. I realise everybody can't play with everybody, I just want the best you can do. Victoria West lui répond.
	Golf for 12 with a proviso		2015-07-07
		Ken pose la question : I hope you can help me. I'm trying to put together a draw for 12 players in 3 groups over 4 days. One proviso, 2 players must play together in each round because they require the use of a golf cart. We are due to play in September this year. Thanking you in advance for any assistance you can give. Victoria West lui répond.
	A fantasy football league		2015-06-11
		Jason pose la question : Hello. We have a fantasy football league with 14 teams. The season is 13 weeks long and we would like to figure out a way to have two divisions of seven teams each with each team playing their inter-division opponents twice. Is there a way to set this up? I cannot seem to find a way to do it. Thanks! Victoria West lui répond.
	Golf for 14: 2 fourballs and 2 threeballs		2015-05-20
		martin pose la question : I have to organize 14 players to play four rounds of golf. Each round comprise two fourballs and two three balls . What's the best combination to ensure that each persons plays with as many of the others as possible without playing with somebody more than twice? Victoria West lui répond.
	n^2 is a multiple of 100		2015-03-30
		Rahul pose la question : I have to prove that n^2 is a multiple of 100 is necessary or Sufficient condition (or both) for n being multiple of 10 Penny Nom lui répond.
	16 golfers for 18 weeks		2015-03-22
		Rose pose la question : We could use a schedule to include the following: 16 golfers 4 foursomes Each person plays once a week for 18 weeks. No one plays in same foursome more than 1 or 2 times, or the least amount of time. Thank you for your kindness. Victoria West lui répond.
	What is 1000 billion billion?		2015-03-10
		LeRoy pose la question : what does this mean? 1000 billion billion Penny Nom lui répond.
	Scheduling 12 for lunch		2015-01-05
		Sabrina pose la question : I have 12 staff members that need to have lunch together 1 time each week. I am trying to pair them in a way that we each have the same amount of lunches in the same amount of weeks. Please Help! Thanks! Victoria West lui répond.
	1.5% of 1 trillion		2014-12-30
		Kgosi pose la question : How much is 1.5% of 1 trillion? Penny Nom lui répond.
	How many square feet in 10 gallons of liquid at 1/4 in thick?		2014-11-14
		Rich pose la question : How many square feet in 10 gallons of liquid at 1/4 in thick Penny Nom lui répond.
	A 10-foot piece of PVC pipe		2014-10-21
		David pose la question : A plumber has a 10-foot piece of PVC pipe. How many 9/5-foot pieces can be cut from the 10-foot piece ? Penny Nom lui répond.
	211(base x)=152(base 8)		2014-09-09
		Vaidehi pose la question : Find the base value (i.e. x): 211(base x)=152(base 8) Penny Nom lui répond.
	4 rounds of golf as three foursomes		2014-08-18
		Christopher pose la question : For our golf trip, we will be playing 4 rounds of golf as three foursomes. We would like to have each person play with everyone at least once. Is this possible? Victoria West lui répond.
	1/3 of $320		2014-08-13
		Student pose la question : Grade:5 Please help I got tutor for selective and this question is really bugging me a lot what is 1/3 of $320? plez answer quick before I fail :( Tyler Wood lui répond.
	Golf for 10		2014-08-12
		Fred pose la question : We have 10 golfers playing 4 rounds: one 4-some and two 3-somes each round. Can you suggest the best distribution of players? Victoria West lui répond.
	Golf for 15		2014-08-11
		Brian pose la question : I am trying to arrange 5 rounds of golf for 15 golfers. We will play 5 in a group, 3 groups per round, 5 rounds. I would like everyone to play with everyone else. Secondary objective would be for no one to play with anyone else more than 2 times. Thank you. Victoria West lui répond.
	16 golfers over 15 weeks		2014-07-11
		Steve pose la question : I need a schedule for 16 golfers over 15 weeks, where each golfer is paired with a different golfer each week and plays 4 matches per week against 4 different pairs (each pair does not have to play each week) Penny Nom lui répond.
	A 14 team golf league		2014-07-11
		Pat pose la question : We have a 14 team golf league that plays a 16 week schedule. Playing once per week, I need a schedule where each team plays every other team at least one time. Victoria West lui répond.
	A rotation schedule for 14 teams		2014-07-08
		Daniel pose la question : I am organizing team activities for a summer camp. We have 14 teams and 7 rotations and 7 different games. every team will play a different game each rotation. Where I am having trouble is I would like each team to play a different team each rotation without a repeat. Is that possible? if so what is the formula? Victoria West lui répond.
	14 golfers, 7 men and 7 women		2014-07-06
		John pose la question : I have to schedule 14 golfers, 7 men and 7 women, into 4 teams each day, playing for 3 days. So each player plays with as many different players as possible for 3 games. Victoria West lui répond.
	12 golfers		2014-06-23
		Derek pose la question : I have a golf group that is set up as follows.12 players broken into 2 teams of 6.We play as a 4 ball ie 2 from each group.I am looking for a formular to have the 2 players from each group not play with each other again & also both of the 2 in each group not play with others in the other group more than once.I don't believe it is possible,so will accept as little duplication as possible-many thanks-Derek Victoria West lui répond.
	The ratio of 1:1:2		2014-06-20
		FREDERICK pose la question : 3 girls shared some hair ribbons in the ratio of 1:1:2 what is the total number of hair ribbons if the third girl got 14 ribbons. prnny lui répond.
	10 golfers, playing 7 rounds in 2 x 3balls and 1 x 4ball		2014-06-04
		adrian pose la question : Hi, We are off to Scotland on our yearly golfing trip soon. Question is we have 10 golfers, playing 7 rounds in 2 x 3balls and 1 x 4ball. I would like to ensure that each golfer plays with the other guys an equal amount of times, guess 3ish? and we share the amount of times each player plays in the 4ball. Hope you can help? Victoria West lui répond.
	14 golfers for 13 weeks		2014-05-17
		Judi pose la question : I want to schedule each of my 14 golfers to play each of the other girls one time during a 13 week period. We would golf in foursomes , threesomes or twosomes to make this happen. Can you send me a grid that would do this scheduling? I'm at a loss as to how to do it!! Victoria West lui répond.
	Golf for 14 players over 12 weeks		2014-05-16
		Judi pose la question : How would I develop a playing schedule using foursomes and one twosome for 14 players who will play 12 weeks and each person would play all but one of the others? Victoria West lui répond.
	18 golfers for 5 rounds with a teaching Pro		2014-05-14
		Maree pose la question : We are taking 18 golfers on Tour with a teaching Pro. There are 5 rounds of golf and we want everyone to play with the Pro once, but everyone else to play with as many different people as possible Victoria West lui répond.
	Eleven guys on a fishing trip		2014-05-13
		Mark pose la question : Eleven guys are going on a fishing trip and want to rotate so everyone fishes with the other guys with the fewest number of repeats. They want to fish in groups of two with one fishing alone for three and a half days so will rotate seven times. Is there a combination that works and what is it? Victoria West lui répond.
	A schedule for 2 teams of 10		2014-05-07
		John pose la question : How can I set up a schedule for 2 teams of 10 on a team to play each individually against each other over a 10 day span at 10 different course with 10 different start times each day. I was looking to not repeat any competition. As an example, Team A would consist of players 1-10, Team B would consist of players 11-20. I would want to have 10 start times a day for 10 days where a member of team A plays a member of team B each day without repeating any matches and any of the same courses and not repeating any of the same start times. Any help in this would be GREATLY appreciated!!!! Victoria West lui répond.
	Golf :15 players over 4 days		2014-05-02
		michael pose la question : We are playing with 15 players over 4 days. We plan to have 3 people in each group. A total of 5 groups with 3 players each. Can I arrange for each player to play with other players only 1 time? Victoria West lui répond.
	11 golfers going on a golf trip for 4 rounds		2014-05-01
		David pose la question : I have 11 golfers going on a golf trip for 4 rounds of golf. I want to make sure that everyone gets a chance to play with everyone at least once but not more than twice. Also, as we are n = 11, we will be composed of 3-4-4 everyday. I am trying to ensure that as few as people as possible play in the group of 3 (golf seems to be more enjoyable for whatever reason in foursomes). i have tried 3 differemt times and can seem to figure it out. Can you assist? Victoria West lui répond.
	2 teams of six playing each other 4 times		2014-05-01
		Steve pose la question : I have 2 teams of six (Team A & B)- playing each other 4 times. Is it possible to have a player from Team A play with a different partner from Team A for each of the 4 rounds, and likewise for Team B. Whilst no player from either team plays an opponent more than twice during the 4 rounds? Victoria West lui répond.
	Golf League Schedule for 15 weeks and three flights		2014-04-21
		bigdog pose la question : I need help setting up a 12 team (3 flights with 3 teams in each flight) 15 week league play schedule. Each team must play teams in there perspective flight twice during the 15 week season. Victoria West lui répond.
	A golf league consisting of 14 two man teams		2014-04-10
		Kevin pose la question : Hello, I need to make a schedule for a golf league consisting of 14 two man teams playing over the course of 20 weeks. I understand that each team will play at least once and I believe 7 teams will play each other twice over the course of the season. How would I generate this schedule. Thank you, Kevin Perry Victoria West lui répond.
	12 golfers, 6 rounds		2014-03-27
		Bill pose la question : I have a group of 12 golfers playing 6 rounds of golf. I am looking for a pairings schedule that allows each golfer to play at least one round in a foursome with each of the other eleven players. Can you provide me with a solution? Victoria West lui répond.
	12 golfers, 24 weeks		2014-03-27
		George pose la question : I have 12 golfers and want to set up a season schedule that will avoid duplication of playing partners as much as possible. The saeson is 24 weeks long. Do you have a formula? Victoria West lui répond.
	13 golfers in groupings of 4, 3, 3 and 3		2014-03-26
		Lennart pose la question : How can I organise 13 players playing in groupings of 4,3,3,3 for 3 rounds of golf in a way that all play with all others but a minimum of times with the same players(?)If possible, nobody should play in the 4 ball more than once. I would be grateful for an answer/proposal! Thank you, LR Victoria West lui répond.
	14 teams divided into two equal divisions		2014-03-18
		C pose la question : We have 14 teams divided into two equal divisions. We want each team to play each team in their division one time and four teams from the other division one time. What is the schedule Victoria West lui répond.
	A schedule for 6 teams over 12 weeks		2014-03-09
		Paul pose la question : So I have a question. I noticed you came up with ways to create schedules and we are having a really hard time making our lineup correctly. Basically we have 6 teams that will play over a 12 week period every Monday night. The time slots are 1 hr each playing at 6, 7 and 8. We would like each team to play 3 games at each time slot over the 12 weeks. Is this something that can actually be accomplished? Thanks so much for your help! Eric Venables lui répond.
	Eleven golfers		2014-03-08
		Leon pose la question : I have a group of 11 golfers wanting to play 10 rounds of golf in grouping of 4,4,3 .What is the best solution so that everyone plays each other as many times as possible Victoria West lui répond.
	A box-and-whisker plot with one whisker		2014-01-09
		Susan pose la question : Question from Susan, a teacher: I read your answer to the question about could a box & whisker have NO whiskers. It made sense to me. However I am preparing for my advanced class and I have a sample graph comparing box plots of data. Several of the box have only 1 whisker. There is no explanation for this. Can you help me out. I cannot think of a data set that would produce this. Thanks! Penny Nom lui répond.
	Scheduling 10 people for 5 rounds		2013-11-20
		Keith pose la question : Using golf as an example, I would like to schedule 10 people for 5 rounds with 2 groups of 4 and 1 twosome each round. I would like to minimze the number of times any one player plays with another. Can you provide an optimal schedule? Thank you for your help. Victoria West lui répond.
	A Hole-in-one on all four par 3's		2013-09-04
		Robert pose la question : There are four (4) par 3's at a specific 18 hole course. One member has the honor of making a Hole-in-one on all four par 3's. It has taken him 8 years to do it! How does one go about computing the odds of this TREMENDOUS accomplishment? Respectfully, Robert laffal Victoria West lui répond.
	14 golfers in two person teams		2013-09-04
		Stewart pose la question : How to rotate 14 golfers in two person teams without duplication until all have been paired at least once. Play is once per week. Victoria West lui répond.
	The perimeter of a 1.4 acre square		2013-08-29
		Destini pose la question : I cannot figure out what the perimeter for 1.4 acres of land in the shape of a square. I have tried and tried and eventually tried to use a calculator and I still can't figure it out. Can you help me? Thanks! Destini Penny Nom lui répond.
	A schedule for 18 golfers		2013-08-29
		Brian pose la question : After searching the data base which helped me solve at least 3 other issues I have one more un answered question. I have 18 golfers split into 6 threesomes for 4 days of golf. What is my best option for a schedule mixing them all up as much as possible over the course of the 4 days Victoria West lui répond.
	More on the scheduling of 16 golfers in 4 rounds		2013-08-26
		Peter pose la question : I see your formula for 16 players 4 rounds. Is it possible to get the players into different groups each day. E.G Player 1 in group 1 the first day, Group 2 the second day, Group 3 the third day, Group 4 the fourth day. Then so on through the players. Victoria West lui répond.
	Golf for 11		2013-08-14
		Don pose la question : 2 foursomes and 1 threesome for 6 rounds of golf Victoria West and Harley Weston lui répond.
	A golf tournament for 12 people		2013-08-01
		Brad pose la question : I've looked all over the web for a solution to this (including searching the archives here) to no avail. We're doing a golf tournament with twelve people. Each person has a "handicap" that demonstrates their skill level. We have these numbers for each of the 12 players. We are trying to figure out how to schedule two rounds of golf with the most balance possible. - We are playing two "real" rounds of golf (18 holes). There are four people per group. - We want to split each round into two 9 hole games, which gives us a total of 4 games - Halfway through (after 9 holes), you switch partners within the foursome that you're playing in. - We want everyone to play with 4 unique different teammates So say you start the first 18 hole round as a group of Players 1, 2, 3, and 4. Players 1 and 2 are a team, and players 3 and 4 are a team. After 9 holes, Player 1 would either be paired up with Player 3 or 4, and the other two players would pair up as well. Then the next day we will mix up the foursomes and do the same thing. In terms of just pure scheduling this is simple. But I'm trying to figure out how to best balance the handicaps (simple average of each team's two handicaps works here). Assuming I'll need some sort of program or spreadsheet. Any help or even a push in the right direction would be a tremendous help. Thanks in advance to anyone who wants to give this a shot. Victoria West lui répond.
	Golf for 16		2013-07-31
		Graylin pose la question : I am going on a golf trip and we have 16 players and need to know a formula that will allow us to all play together at some point in the 4 rounds we are playing. If not possible please provide best case. Thanks. Victoria West lui répond.
	16 golfers		2013-07-31
		Pat pose la question : 16 golfers...3 nine hole rounds a day...for 4 days. what are the best pairings for the fewest repeats of partners? Victoria West lui répond.
	10 guys playing 8-9 hole rounds		2013-07-19
		Jason pose la question : I have 10 guys playing 8 9 hole match-play rounds. I need to have everybody play the other 9 men, but need to limit them to only a 9 hole match between them. If we need to go 3-3-4 or 2-4-4 for a better solution, that may be possible. Victoria West lui répond.
	13 golfers playing 5 rounds		2013-07-03
		Alan pose la question : i have 13 golfers playing 5 rounds. want everyone to play together at least once. Victoria West lui répond.
	13 golfers		2013-07-02
		James pose la question : 13 golfers playing in 4 groups [4,3,3,3 per group] for four rounds. Can it be scheduled so that no two people play together more than twice? Victoria West lui répond.
	16 golfers in 2 groups of 8		2013-06-15
		Derek pose la question : we are 16 golfers.2 groups of 8."A" group & "B" group.We are playing 4 rounds,4 players at a time,2 from each group.We don't want to play with or against the same person twice.IE we want to play with 7 different people each day.Is it possible ?-thanks-Derek Victoria West lui répond.
	21 golfers		2013-05-27
		Linda pose la question : A database search for a question on how to schedule 20 golfers in groups of 4 was very helpful ( Mona's answer referred to by C. Fisher 9-3-2008) I'm very glad I found this sight. Our problem is we will have 21 golfers in the second half of the season. Is it possible to figure out that schedule? I assume we will have to include byes, but I'm not sure how to go about doing that. Thank you. Victoria West lui répond.
	How can we draw the equation "x+y=1" in 3d?		2013-05-03
		shimaa pose la question : how can we draw the equation "x+y=1" in 3d Robert Dawson lui répond.
	10 golfers playing four rounds		2013-04-09
		Terry pose la question : I've searched "golf" and "golf 10" but don't see 10 golfers playing four rounds (each round having one foursome plus two threesomes, and no "flights" as in one earlier answer); each player playing at least once with a maximum number of the other nine over the four rounds? Victoria West lui répond.
	16 golfers over 15 days		2013-04-02
		Mark pose la question : 16 golfers, each plays the other 15 golfers once each over 15 days. played in four foursomes each day. What is schedule that allows each golfer to play with other golfers an equal number of times? Victoria West lui répond.
	100 animals		2013-02-25
		Jessica pose la question : You have exactly $100.00 to spend. You must get 100 animals. The chicks cost $0.10 each. The pigs cost $2.00 each. The sheep cost $5.00 each. You must get some of each animal. How many of each animal can you get? Penny Nom lui répond.
	We have 10 golfers and four rounds of golf in two days		2013-02-05
		Steve pose la question : We are having a golf tournament. We have 10 golfers and four rounds of golf in two days. We are going to break the group of 10 into two flights. Flight A and Flight B. We would like all members in Flight A to play one nine hole match against each other. All players in Flight B to play one nine hole match against each other. Could we play in groups of 4,3 and 3? What is the best way to make the pairings work? Robert Dawson lui répond.
	Golf for 17		2013-01-23
		Richard pose la question : I have looked through the examples on your site but can't find one that suits. I am fiddling with one to see if I can get a result; but not confident. I have 17 players playing 6 rounds in 3 groups of 4 and 1 group of 5. Two players will not be included in any 5 ball group. Can you help me please. Victoria West lui répond.
	Golf for 18 for 18 weeks		2013-01-22
		Al pose la question : We have 18 two man golf teams and we play once a week for 18 weeks. We need a formula to schedule these teams so that they play each other one time only. Victoria West lui répond.
	Composition of functions and one to one		2012-10-17
		Ariana pose la question : If f o g are one to one function,does it follow that g is one to one? Give reasons for your answers Penny Nom lui répond.
	Functions		2012-09-18
		nayeem pose la question : I tried with many functions but I am not getting the exact values please help me A give an example of a function whose domain equals the set of real numbers and whose range equals the set the set {-1,0,1}? B Give an example of a function whose domain equals (0,1)and whose range equals [0,1] C.Give n example of a function whose is the set of positive integers and whose range is the set of positive even integers D. Give an example of a function whose domain is the set of positive even integers and whose range is the set of positive odd integers E give an example of function whose domain is the set of integers and whose range is the set of positive integers. F. Give an example of function whose domain is the set of positive integers and whose range is the set of integers. please show me the work Please give me the trick of finding such functions Robert Dawson and Harley Weston lui répond.
	Functions		2012-09-18
		nayeem pose la question : I tried with many functions but I am not getting the exact values please help me A give an example of a function whose domain equals the set of real numbers and whose range equals the set the set {-1,0,1}? B Give an example of a function whose domain equals (0,1)and whose range equals [0,1] C.Give n example of a function whose is the set of positive integers and whose range is the set of positive even integers D. Give an example of a function whose domain is the set of positive even integers and whose range is the set of positive odd integers E give an example of function whose domain is the set of integers and whose range is the set of positive integers. F. Give an example of function whose domain is the set of positive integers and whose range is the set of integers. please show me the work Please give me the trick of finding such functions Robert Dawson and Harley Weston lui répond.
	Golf for 12		2012-09-10
		John pose la question : To have 12 players in groups of 4 playing in 4 games with different people each day Victoria West lui répond.
	12 golfers, 4 rounds		2012-08-29
		Paul pose la question : We have 12 golfers who will play four rounds of golf - how can we organize the foursomes so that each player has the most exposure to the other 11 players? Victoria West lui répond.
	A schedule for 6 teams and 37 games		2012-08-29
		Giovanni pose la question : Hello, i try to prepare a schedules for 6 teams, and every teams will play 37 games before the playoff. How to make a schedules? thanks Victoria West lui répond.
	Golf for 16 in 7 rounds		2012-08-16
		Elizabeth pose la question : Hello, I am trying to sort out golfing for 16 guys for 7 rounds. However the twist is that the teams are broken down into 8 old boys vs. 8 young boys. Ideally, each of the players would only play each other once within their own team and then twice within all of the matches. Is that possible? Thanks for your help, my brain is hurting! Victoria West lui répond.
	The range of h(x) = 1/x		2012-08-11
		Lucy pose la question : What is the range of the function: h(x)=1/x (and can you please explain why)? Penny Nom lui répond.
	A sand box with 14 sides		2012-07-10
		Tom pose la question : Want to build a sand box for a pool that is fourteen foot round wanted to make it in fourteen pieces of wood what angle would each piece be and how long would each piece be Harley Weston lui répond.
	Expanded exponential form?		2012-06-12
		Ramon pose la question : express the numbers 990 614 000 005 in expanded exponential form. Harley Weston lui répond.
	16 golfers, 4 rounds		2012-06-04
		Gerry pose la question : 16 golfers, 4 rounds - best pairings so that everyone plays with each other at least once. Harley Weston lui répond.
	Golf 16		2012-05-29
		marknp pose la question : 16 players only want tp play with one player each one time Victoria West lui répond.
	Division in base eleven		2012-05-27
		Zoe pose la question : How do you divide numbers that are in base 11? For example; 9A7A6A divided by A Penny Nom lui répond.
	16 golfers		2012-05-17
		Nohemi pose la question : Can 16 golfers each play in foursomes for 6 days? I found the answer for 5 days, but is it possible to do it for 6. Robert Dawson lui répond.
	Golf for 12		2012-04-20
		glenn pose la question : need to schedule 12 players for a 20 week season Victoria West lui répond.
	Golf for 12		2012-04-20
		Bram pose la question : We are heading on a golf trip with 12 guys, playing 6 rounds. Can you please provide the formula whcih which have the least duplication. Thanks in advance, Bram Victoria West lui répond.
	16 golfers		2012-04-20
		steve pose la question : i have 16 golfers, 4 in "A" flight , 4 in "B" flight , 4 in "C" and 4 in "D" We are playing 4 rounds (4 teams of 4) and every group must have a player from the A B C an D flight, and in no round may 2 people have already played together! Victoria West lui répond.
	Golf for 12		2012-04-18
		Brent pose la question : I have a golf group that is set up as follows: 12 players, broken into 2 teams of 6. I am looking for a formula to have one player from team A play against one player for team B each round, not repeat the match, and ride with as little duplication as possible. I know that it is not statistically possible with these numbers and will have at least one round that has duplication. Robert Dawson lui répond.
	Golf for 10		2012-04-18
		Bob pose la question : Question from Bob: Hi, I am trying to set up pairings for 4 rounds of golf with only 10 golfers (2 foursomes and 1 twosome) and trying to minimize duplications. Any formulas or help? Victoria West and Harley Weston lui répond.
	A 14 man golf league		2012-04-12
		Paul pose la question : 14 man golf league. Need to have alternating 2 man teams for 18 weeks. Need to rotate foursomes so no one is stuck in twosome more than once. Can you help? Robert Dawson and Victoria West lui répond.
	Golf for 17		2012-03-29
		Richard pose la question : Hi Guys, I have a scheduling problem which I don't think you have covered before. Apologies if you have! I have 17 golfers due to play 4 rounds of golf. Each round will consist of 3 threeballs and 2 fourballs (ie. 17 golfers in 5 groups)! Is it possible to come up with a schedule where each golfer plays with different partners in each round? Robert Dawson lui répond.
	Converting from base 4 to base 10		2011-11-29
		anjg pose la question : How to convert base 4 number 2^11 to base 10 number? Penny Nom lui répond.
	1 divided by 0 and infinity		2011-10-24
		ritika pose la question : we say that one divided by zero gives us infinity, then why zero multiplied by infinity does not gives us one????????????? Robert Dawson lui répond.
	Expanded form		2011-10-12
		Chris pose la question : Write this number in expanded form 4 326 180 501 Thanks!!! Penny Nom lui répond.
	Golf for 14		2011-07-11
		Doug pose la question : We have 14 players playing over 4 days. can we play with different players every day and keep the 3 x foursomes and 1 x pair format Victoria West lui répond.
	Golf for 12		2011-07-07
		Jim pose la question : I have a golf trip scheduled with a total of 12 guys. We are playing three rounds of golf. For round 1 Players A B C D must play together. Is there a formula that would allow me to set up the other 8 foursomes with no repeats or minimal repeats? Thanks. Victoria West lui répond.
	A line tangent to f(x)=1/x		2011-06-05
		Michael pose la question : A line tangent to f(x)=1/x in the first quadrant creates a right triangle with legs the x-axis and the y-axis. Prove that this triangle is always 2 square units regardless of where the point of tangency is. Penny Nom lui répond.
	16 golfers and 8 rounds		2011-05-26
		Gerry pose la question : 16 golfers and 8 rounds. To have each player play with as many others as possible. Victoria West 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.
	sin x = -0.25		2011-03-29
		Wayne pose la question : How do you solve for x in the equation sin x = -0.25 the answer is 3.394 and 6.030 but I don't know the steps they used to calculate this Penny Nom lui répond.
	The number of points on a line is equivalent to that of a surface		2011-03-24
		Gary pose la question : I I was reading about how the number of points on a line is equivalent to that of a surface. This was done by taking any point on a line then taking alternating digits and making them as points on an x and y axis therefore points on a surface.The problem is as i see it if you just take a line then hold it over a surface you have just put the points on the line in a one to one correspondence with the points directly under it on the surface.Now you have all the rest of the surface which cannot be mapped onto the line since it is already used up.What am i missing? Penny Nom lui répond.
	1/0 and 2/0		2011-02-11
		Dixit pose la question : How are the infinite number obtained by dividing 1 / 0 and 2 / 0 are different? Penny Nom lui répond.
	16 golfers		2011-01-22
		Jack pose la question : I am responsible for setting up groups for 16 golfers for 7 days, is there a formula to calculate playing partners so that everyone gets to play with each person? Victoria West lui répond.
	16 golfers		2011-01-16
		Kenneth pose la question : Our group will play 12 rounds. We are 16 golfers. How can I schedule 12 days of differing foursomes limiting repeats in the foursomes Victoria West lui répond.
	10 golfer playing 5 rounds		2011-01-09
		Jeff pose la question : need pairing for 10 golfer playing 5 rounds of golf. Victoria West lui répond.
	Golf pairings		2010-12-17
		AL pose la question : I have a golf tourney where we have fourteen players and are playing five times/rounds of golf. I am trying to pair up two threesomes and two foursomes so we don't play with the same person twice or the least amount of times. Victoria West lui répond.
	Draw a figure with 16 triangles using only 6 line segements		2010-12-16
		Jill pose la question : How can you draw a figure with 16 triangles using only 6 line segements? Stephen La Rocque lui répond.
	Can a function be both even and one to one?		2010-10-09
		Tracy pose la question : Can a function be both even and one to one? Harley Weston lui répond.
	12 coins		2010-07-07
		Eden pose la question : We have 12 coins same in size and shape and also weight. But among these, one coin which has same size and shape, but not in weight and we can't know that this coin was lighter or heavier. We must decide which coin was lighter or heavier among these 12 coins in 4 times of weighting with scale. Stephen La Rocque and Tyler Wood lui répond.
	More on carbon 14 dating		2010-05-26
		Malachi pose la question : I am doing carbon 14 dating and i figured out the rule for taking the percent of the original C-14 to figure out how old it is. how do I work the equation the other way around to find the percent remaining, from how long ago the objects organic mater died Harley Weston lui répond.
	The value of 1 acre		2010-05-13
		Rebecca pose la question : If 38,121 sq feet equals $19,846.58 at 75% of its current value, what would the value of 1 acre be at 100% of value? Penny Nom lui répond.
	A 14 side well house cover		2010-03-12
		Kenneth pose la question : I am 35 yr I am wanting to build a well house cover. I'm trying to figure out how long the pieces need to be and what angle they need to be for a 4 ft dia with 14 side well house. I would love an answer but would also like to know how to figure it in the future. Thanks Kd Harley Weston lui répond.
	The difference of the two numbers		2010-02-15
		Steve pose la question : The difference of the two numbers 'abcdef ' and ' fdebca ' is divisible by 271. prove that b = d and c = e. Claude Tardif lui répond.
	1^3 + 2^3 + 3^3 +4^3 ... n^3 = ?		2010-01-29
		ireimaima pose la question : Hi.. Can u please help me with this question.. I find that when i test eg: n=2 for n (n+1) /4, it seems that it does not giving me the right answer of 1^3 + 2^3 = 9 but 3/2... i'm confuse..can u please help me..thanks so much Prove that: 1^3 + 2^3 + 3^3 +4^3………………………………..n^3 = n (n+1) /4 Penny Nom lui répond.
	15 golfers 3 rounds fivesomes		2009-12-23
		Dewey pose la question : I have 15 golfers playing 3 rounds of golf. We will be playing in fivesomes. Any formula that has everyone playing with a different person each round? Thank you. Dewey Robert Dawson lui répond.
	Bases larger than ten		2009-12-14
		Nick pose la question : For numbers in bases larger than ten, what are the digits by mathematicians' conventions? I assume the first 10 are always 0-9. I know two computer science conventions (for hexadecimal (A-F case-insensitively) and for base 85 (case-sensitivity plus 23 other characters)) and as a school student I learned that base 12 uses either T and E (which confused me when I thought they stood for Eleven and Twelve) or A and B, the latter as capitals only. Clearly, these conventions are in conflict. I saw your reply in http://mathcentral.uregina.ca/QQ/database/QQ.09.99/magin1.html as accessed a few minutes ago but hope that in the 10 years since then mathematicians have arrived at a convention. Have they? Thank you. -- Nick Claude Tardif lui répond.
	Ascribing a value to 1/infinity		2009-11-19
		Jack pose la question : Hello, and, in advance, thanks for answering. I came across the problem of ascribing a value to 1/∞ (one divided by infinity) recently, I heard many things: that it is infinitesimally small (i.e. .0000000000...1 the most intuitive), that it is 0 (the most ludicrous of them all in my mind), and that it is not definable (which makes the most sense, although is a bit of a let down). I know that lim (x->∞) 1/x = 0 and this is often used as an argument for all three possibilities. So what's the ruling on this? And, I know this question has already been answered, but for a little modification; is there any way to prove the answer that seems to be the most prevalently used (not definable as ∞ is a concept) with mathematical logic? Or is it just because of the definition of ∞? Robert Dawson lui répond.
	One-eighth of one million dollars		2009-11-16
		Jarrett pose la question : what is 1/8 equal to out of a million dollars. Penny Nom lui répond.
	A 15 acre lot		2009-09-26
		Ronald pose la question : The front and back are equal and the two sides are equal what would what would be the dimensions of a 15 acre lot? Harley Weston lui répond.
	Dart teams		2009-09-18
		Sally pose la question : I have 14 dart teams. Each team has a home bar.Usually it is one week home, the next week away. I have 3 locations that have one board only, yet have 2 teams at each location. I have one location that has 2 dart boards, and 3 teams. The last location have 3 dart boards and 4 teams.Can you make me a schedule that will be home and away, and every teams plays each other twice. In case you are wondering, the bars sponsor the teams.Thank you. Sally Robert Dawson lui répond.
	10 golfers		2009-09-06
		Bill pose la question : We have 10 golfers scheduled to play over five days on vacation in November. Each day we will play in three groups of three and one foursome. Is there an optimum solution that would assure that every golfer plays with every other golfer at least once while no golfer plays an inordinate number of times with any other golfer or too often in a foursome? Victoria West lui répond.
	x^x = 1		2009-08-28
		Waleed pose la question : x^x=1 Robert Dawson lui répond.
	Golf for 15		2009-08-18
		Judy pose la question : We have a group of 15 golfers that play a scramble with groups of 3. The problem is we play for 14 weeks. We want every player to play at least once with everyone and no more that 3 times. I am working on this and have just about accomplished the schedule, but with a few playing more than 3 times. I'm sure there must be some mathematical calculation to do this but I have yet to figure it out. Victoria West lui répond.
	A golf league with 12 players		2009-07-17
		Jane pose la question : My weekly golf league has 12 players in 4 threesomes. How many weeks would it take to play everyone once and not have too many duplications? What would be the schedule each week? Thanks Victoria West lui répond.
	Twelve golfers		2009-06-26
		Fred pose la question : Hello- There are twelve golfers in 3 foursomes for three days. Is there a combination of four man foursomes that allow for no duplicates? In other words, is there a formula to insure the greatest amount of variety in the foursomes. Looking at it math like you have 1,2,3,4,5,6,7,8,9,10,11,12 grouped into four numbers each for three days. So if your have the first day 1,2,3,4 in one group, 5,6,7,8 in the second and 9,10,11,12 in the third what can you do for the next two days to have the fewest duplicates or have the greatest variety in the foursomes? Thanks Karen Meagher and Victoria West lui répond.
	11 golfers playing 4 rounds		2009-06-14
		Brian pose la question : I have 11 golfers playing 4 rounds of golf. It would be great if we could play at least once with everybody. I realize we will have 2 foursomes and 1 threesome each round...can you help? Victoria West lui répond.
	Omega 1		2009-06-03
		Justin pose la question : Hello there, I was just wondering if the infinity in the extended real number system is the same as w1 (or Omega 1, the order structure of the real numbers) in the transfinite ordinals? Thanks so much for your help with this question, I really appreciate it! Sincerely, Justin Robert Dawson and Harley Weston lui répond.
	The sum of the angles of a triangle		2009-05-18
		mary pose la question : prove that the sum of the three angles inside any triangle always add up to 180 degrees? Harley Weston lui répond.
	16 teams, 15 weeks, would like to pair up with no repeats.		2009-05-12
		Kimberly pose la question : 16 teams, 15 weeks, would like to pair up with no repeats. Thank you so very much. Robert Dawson lui répond.
	A golf schedule for 18 teams		2009-04-21
		laura pose la question : Could you help me form a golf schedule for 18 teams, playing a total of 8 weeks. Rotating the schedule each week so every team plays with a different team each week? I am using a shotgun format with 9 holes every week. Thank you for your input. Victoria West lui répond.
	The graph of y = 4x^-4		2009-04-07
		lyric pose la question : tell whether the graph opens up or down.write an equation of the axis of symmetry y=4x^-4 Penny Nom lui répond.
	More on the square root of 0.75		2009-03-30
		Blaine pose la question : I read your response to How is the square root of 3/4 is greater than 3/4? What I'm hoping for is a way for my students to use their own experience and number intuition to be able to make sense of the issue. As soon as my kids see "if y is this and x is this then..." their little eyes glaze over. Unfortunately, I can't come up with a way myself. Thank you for your help. Penny Nom and stephen La Rocque lui répond.
	0123456789		2009-03-25
		Dr. pose la question : Many years ago I discovered that there are 33 numbers which, when multiplied by 0123456789, simply rearrange the digits. Surprisingly (to me at least) is the fact that the digits of all of those 33 numbers add up to one of the 6 "cardinal" numbers 1, 2, 4, 5, 7, and 8. For example 6 + 2 = 8 and 62 X 0123456789 = 7654320918 etc. Another interesting (to me) fact is that only the cardinal numbers 1, 2, 4, 5, 7, and 8 rearrange the digits in the number 9876543210. My question is: "Is this known to anyone but me and the people I have told?" Robert Dawson lui répond.
	A 14 team league that is divided into 2 divisions		2009-03-07
		Ronnie pose la question : I have a 14 team league that is divided into 2 divisions. We have a total of 18 weeks to play. I would like for each team to play the team in their division twice. The remaining 6 weeks would be played with the other division. Any help would be appreciated. Chris Fisher and Victoria West lui répond.
	A shape with 10 sides		2009-03-03
		Sandra pose la question : One of my son's math questions is as follows: Suppose I have a shape with 10 sides. I choose a vertex then draw lines to the other vertices that dont share sides with the first vertex. How many vertices will that be and why? Penny Nom lui répond.
	16 golfers playing one round of golf on each of four days		2009-02-22
		Jim pose la question : I have seen solutions for other combinations of setting up a golf trip but I haven't seen one for my group. We have 16 golfers playing one round of golf on each of four days. Is there a way for all of them to play in foursomes so that everyone gets to play with everyone else? Thanks for your consideration. Chris Fisher lui répond.
	Cantor's cardinality		2009-02-16
		Justin pose la question : Hello, I was just wondering why the infinity from real numbers is smaller than Beth Two in the context of Cantor's cardinality set theory? Justin Robert Dawson lui répond.
	0/0 and 1/0		2009-02-16
		Justin pose la question : I was just wondering which is bigger 0/0 or 1/0? Justin Robert Dawson and Harley Weston lui répond.
	12 golfers		2009-02-04
		david pose la question : 12 golfers playing in 3 four balls over five rounds. can everyone play with everyone else at least once. Victoria West lui répond.
	A 28 week golf schedule		2009-01-17
		Don pose la question : You have a 12 man golf schedule playing 8 weeks. Can you go further and make it a 28 week schedule. 3 foursomes. any help would be greatly appreciated. Victoria West lui répond.
	16 golfers		2009-01-11
		Bill pose la question : I have read many of your answers to similar questions but still need your assistance. We have 16 golfers that will be playing in 4 groups of 4 each day on an upcoming golf vacation. Can you suggest the best way to scheudle the individuals assigned to each daily foursome so that we have the most diversity in foursomes throughout the vacation. I am trying to have evryone play with as many members of the group over the week with the least amount of repetition. If you would please provide it for both 6 and 7 days, since we are not sure yet how many days we will be playing. 16 golfers-playing in groups of 4 each day-6 days 16 golfers-playing in groups of 4 each day-7 days Victoria West lui répond.
	18 golfers and 5 rounds		2009-01-10
		steve pose la question : We have 18 golfers 5 rounds . Would like 3 foursomes and 2threesomes each day Different groups each day. Victoria West lui répond.
	What is one trillion divided by 10?		2008-12-09
		mark pose la question : can you please tell me what one trillion divided by 10 is Robert Dawson and Penny Nom lui répond.
	Aboriginal number groupings		2008-09-04
		Barbara pose la question : Our current place value system is based on the notion of 10s. Did Aborginal people use a similar system or did they group numbers differently? Harley Weston lui répond.
	Divisibility by 11		2008-07-04
		Peter pose la question : For what single digit value of n is the number n53nn672 divisible by 11? Leeanne Boehm lui répond.
	A golf tournament		2008-06-24
		Roland pose la question : We have a golf tournament, 12 players, three rounds. We want to pair so that we have pairings with as few duplications as possible. Janice Cotcher lui répond.
	A 10 acre square		2008-05-12
		RICHARD pose la question : I AM GETTING A 10 ACRE TRACT OF LAND OUT OF A 50 ACRE TRACT. ITS GOING TO BE PERFECTLY SQUARE.I NEED TO KNOW WHAT EACH PROPERTY LINE LENGTH WILL BE?ON ALL FOUR SIDES.AND THE TOTAL SQUARE FEET WILL BE IN THIS 10 ACRE TRACT? Penny Nom lui répond.
	Division by zero		2008-05-01
		Bill pose la question : Why does multiplication have a favored status so as to make division by zero undefined? Harley Weston lui répond.
	WHY 144 where does this figure come from		2008-04-19
		Sean pose la question : Why do you use the number 144 to divide EG. length of timber 2 inches x 8 inches x 14 foot = 1.5 cubic feet Calculation is 2x8x14 =224 divide by 144 = 1.5 WHY 144 where does this figure come from Leeanne Boehm lui répond.
	A 100 acre square pasture		2008-04-03
		Richard pose la question : I need to know how many lineal feet there is around a 100 acre pasture that is square in shape. I am no longer able to get out and measure it myself, and cannot remember the math to compute it. Penny Nom lui répond.
	The product of two numbers is 1,000,000,000		2008-03-14
		Henry pose la question : What two numbers that don't in zero when multiplied equals 1,000,000,000 and same with 1,000,000,000,000,000,000. Penny Nom lui répond.
	Why is the number 1 neither prime nor composite?		2008-02-07
		ronni pose la question : why is the number 1 neither prime nor composite? Harley Weston lui répond.
	Multiplying decimal numbers		2008-02-05
		alwyn pose la question : Why should when you Multiplying Decimal numbers is value becoming less and less? don't you think even decimal number is a quantity and in no chance when it multiplies its should become less or nil !!! In fact all Multiplying and or adding the value will go up and only when you subtract and divide it should become less !! Stephen La Rocque and Penny Nom lui répond.
	Multiplying numbers in bases other than 10		2008-01-08
		Imaiya pose la question : In class we've been learning about numbers with a base other than ten. For example, base 7, base 5, and base 6. What's really stumping me is how to multiply these numbers, when they aren't a base of 10. I've had it explained to me once, but don't seem to understand it. Here are the equations, and I've listed the first few numbers for that particular base. Base 5: 0,1,2,3,4,10,11,12,13,14,20 etc... The Equation: 34 x 42 Base 9: 1,2,3,4,5,6,7,8,10,11,12,13,14, etc... The Equation: 56 x 78 If you could explain to me how to multiply numbers with any type of base, I'd really appreaciate it. Also if you could show me how to do one of the questions that I listed, that would really help me =) Thanks so much, and once again, thank you for your great site! Stephen La Rocque lui répond.
	Base 10 to base 5		2007-10-09
		Angela pose la question : I've been searching online for the past week and I cannot find an Algorithm to convert from base 10 to base 5. Can anyone give me a step-by-step instruction on how to do this? Stephen La Rocque lui répond.
	Differentiate x^(1/3) using first principles		2007-09-14
		Sheila pose la question : our teacher gave us this question as a challenge and even he couldnt figure it out: Differentiate x^(1/3) [aka the cube root of x] using first principles. i know the answer is 1/(3.x^2/3), but how is it possible using first principles? Harley Weston lui répond.
	If A is 1 and Z is 26		2007-06-29
		Sue pose la question : If A is 1 and Z is 26 is there a word that when you multiply all the numbers instead of letters adds up to a million? Chris Fisher and Harley Weston lui répond.
	An odd number with 12 factors		2007-06-27
		Wilson pose la question : Do you know of any odd number that has 12 factors? Reply back today. Because I have hand in a project tomorrow. Stephen La Rocque and Harley Weston lui répond.
	Where will volume 13 go?		2007-04-12
		Shawn pose la question : A novice librarian shelved a twelve-volume set of encyclopedias in the following order from left to right. Volumes 8, 11, 5, 4, 9, 1, 7, 6, 10, 3, 12, and 2. Using her system, where will volume 13 go? Stephen La Rocque and Penny Nom lui répond.
	Golf schedule		2007-03-30
		Jim pose la question : I am organising a golf break for 12 golfers playing in 3 fourballs over 5 days. I would like to maximise the number of different golfers each player can play with. Any help would br greatly appreciated. Penny Nom lui répond.
	14 golfers--6 days		2007-02-02
		tom pose la question : 14 of us are going golfing-- over the course of 6 days is there a formula that would allow us to have the chance to play with as many different partners as possible--2 foursome, and two threesomes Chris Fisher lui répond.
	A dinner group of 16 couples		2006-11-02
		Nancy pose la question : This is a real-world problem. I should know the answer but I don't. A friend is starting a dinner group of 16 couples, to be distributed across 4 houses. Each month she wants to have a different set of host houses (no problem) AND she doesn't want repeats among pairs. That is, if the Smiths and Joneses are together one month, they should not be together another month until all the combinations have been exhausted. How many valid combinations are there? Is there a formula that I can convert into a computer program? I will have to get the names from my friend and give her back the combinations as she would not be able to deal with the math formulation. Denis Hanson lui répond.
	Golfing with 8 or 12		2006-02-13
		Carolyn pose la question : I have a couple of questions that my dad asked me and I do not think it can be done in the manner he wants it to come out to. He is going on a golf trip in June. There are going to be either 8 or 12 players playing 4 rounds of golf. The questions that he says will not work and I do not know how to figure it out either is 4 Rounds of golf is for sure. 18 hole Rounds each 4 Players to a group Either 8 or 12 players can every player play with every player in a group at least once during those 4 rounds. If this can be done can you give me the combinations for both 8 and 12 , so I can help out my dad. Along with how you you figure this out. Penny Nom lui répond.
	A golf outing for 16 golfers		2005-08-05
		Bob pose la question : I have a golf outing fast approaching and I’m having a problem matching the golfers so that everyone plays a round of golf with every other golfer in the group. My problem is this: I have 16 golfers playing 5 rounds of golf. I would like a different foursome for every round of golf, that is each round (5 total) an individual is playing with 3 other players he hasn’t played with as of yet. Can you crunch the numbers and get back to me? The way I see it, we have 20 combinations (5 rounds x 4 golfers) with numbers 1 thru 16. Chris Fisher lui répond.
	Divisibility by 15		2004-12-19
		Lisa pose la question : My son was asked to find divisiblity rules for 15. We have been unable to find the answer. Does it exist? Leeanne Boehm and Denis Hanson 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.
	Golfing with Norm		2004-08-19
		Norm pose la question : I am organizing a golf tournament with 6 American and 6 Canadian players. We play 3 rounds of golf. Is there any way to arrange that everyone plays without playing with the same person twice. Each foursome must consist of 2 Americans and 2 Canadians with one of each in a cart. Your help would be much appreciated. Claude Tardif lui répond.
	The "22" puzzle and the "1089" puzzle		2004-04-22
		Marcelle pose la question : 1. Choose 3 digits from 1-9 2. Make all the 2 digit numbers you can from these (6) 3. Add the 3 original digits and divide them into the sum from step 2. The answer is always '22'. I just can't understand why. Can you please help. Another one related to this is it: 1. Choose a three digit number ensuring the first and third digit are differnt by at least two. 2. Make the reverse three digit number and subtract the smaller one from the larger of these. 3. Take this answer and reverse it and add these two 3 digit numbers . eg: 643 - 346 = 297 297 + 792 = 1089 it doesn't matter what numbers are used, the results are alwasy the same. eg 22 or 1089 Paul Betts lui répond.
	Equivalent sets		2004-03-06
		A student pose la question : If A=(1,2,3,4,...) and B=(5,10,15,20,...), is A equivalent to B. Why or Why not ? Penny Nom lui répond.
	A fifteen sided polygon		2004-03-05
		Joann pose la question : WHAT IS THE NAME OF A FIFTEEN SIDED SHAPE? Penny Nom lui répond.
	Digits in the decimal expansion		2004-02-11
		Leslie pose la question : In the decimal expansion of 1/17 what digit is in the 1997th place? Penny Nom lui répond.
	1/0 = ??		2003-12-09
		Lisa pose la question : One of my students asked me a fractions question. She knows that 0/1 equals 0 but does 1/0 also equal 0? Walter Whiteley and Penny Nom lui répond.
	A riddle		2003-11-19
		Sarah pose la question : Ok, our teacher gave us this riddle, and I cannot for the life of me figure it out. He said that there are three problems with the following proof: Penny Nom lui répond.
	10,000		2003-10-08
		Nathan pose la question : what two numbers make the product of 10,000. Neither number can end in a zero Penny Nom lui répond.
	Converting from base 10 to base 5		2003-09-10
		Susy pose la question : My son, who is 9 in grade 5 has been asked to convert base 10 numerals into base 5. His first question of: 24(10) he has calculated to be 4x5 + 4x1 = 44 (5) The next question however is the tricky one.Ý We know the answer is supposed to be 100 but we find it difficult to get this in the way he understands it. 25 (10) = _________________ 100 (5) Can you help us figure out how we reach the answer. Claude Tardif and Penny Nom lui répond.
	Converting to base 10		2003-08-28
		Karen pose la question : My son is in 5th grade.Ý He is learning how to convert numbers from base 2 to base 10, and base 5 to base 10.Ý Can you explain it to me in the simplest terms? Penny Nom lui répond.
	A golf tournament		2003-08-23
		Dale pose la question : I am running a golf tournament with twelve golfers. We will be playing four rounds of golf. I don't want to schedule the same two players together more than twice (if possible). How would I make a schedule that each player would play at least once with every other player? I would appreciate any help that you can give me. Denis Hanson lui répond.
	39 consecutive natural numbers		2003-08-19
		A student pose la question : Prove that among any 39 consecutive natural numbers it is always possible to find one whose sum of digits is divisible by 11. Penny Nom lui répond.
	A function that is onto but not one-to-one where f:N-->N		2002-12-06
		Lisa pose la question : A function that is onto but not one-to-one where f:N-->N Penny Nom lui répond.
	8 squares from 12 sticks		2002-10-08
		A student pose la question : If you have 12 sticks the same size, how do you make them into 8 squares? Claude Tardif lui répond.
	11........1		2002-05-29
		Un eleve pose la question : Démontrer que tout nombre impair non multiple de 5 admet un multiple de la forme:11........1 Claude Tardif lui répond.
	100 from four 9's		2002-03-27
		A student pose la question : My teacher gave us a math problem to try and figure out and I am stumped. The problem was this.... by only using four nines, how can you get an answer of 100? You can add, subtract, multiply or divide...anything you need to do ,but you can only use four nines. Leeanne Boehm lui répond.
	When will the calendar be the same as 2002?		2002-02-20
		John pose la question : When will the calendar be the same as 2002? I know the answer is 2013, but I don't know how to answer this mathematically, or if it is possible to do so. This is a ninth grade level algebra question my daughter received from her teacher. Any ideas? Chris Fisher, Patrick Maidorn and Penny Nom lui répond.
	What is 20 to the thousandth power?		2002-02-12
		Kristi pose la question : What is 20 to the thousandth power? Paul Betts lui répond.
	Column doesn't add up to 100%		2001-10-17
		A student pose la question : why don't some tables I'm studying in a column add up to 100%? Example: N=338, but responses to questions asked in survey I'm studying equal of 24.3, 9.8, 43.8, DON'T add up to 100%. I'm assuming that some people surveyed out of the 338 didn't bother responding, but is there another problem related to proportion or ratio being used, but improperly labeled on graph?. Note at bottom of table says: "number in parenthesis are numbers of cases" and 338 was in parentheses. I'm lost. Penny Nom lui répond.
	Dividing a circle		2001-10-17
		Ahmeen pose la question : I am having a hard time figuring out how a circle can be divided into 11 equal parts with only 4 cut allowed? My teacher gave this to us and I still can't cut my pie into eleven equal parts with only four cuts. Walter Whiteley lui répond.
	The 100 chart		2001-09-28
		Nich pose la question : Am I suppose to use the 100 chart for these questions. Question One: I am a 2 digit number my tens digit is 2 more than my one digit my 1 digit is between 4 & 6. What # am I ? Question Two: I am a 2 digit # I am greater than 40 but less than 60 my tens and ones digits are the same I am a odd number what am I ? Penny Nom lui répond.
	1:5		2001-09-27
		Sandy pose la question : A colleague and I have a disagreement about dilutions. I seem to remember that I was taught (although it was a long time ago) that a RATIO was written thusly: 1:5 , and read " one part to five parts", for a total of 6 parts. On the other hand, a fraction is written: 1/5 and is read" one part in five" for a total of 5 parts. My colleague says that the ratio reads "one part in five" and is essentially the same as a fraction. Which is right? Have I been doing dilutions wrong all this time? I teach Animal Nursing and need to know where I can find a consise answer to such questions for making up medicated fluids, etc. Penny Nom lui répond.
	A 91-gon		2001-09-10
		Ashley pose la question : Hi! My name is Ashley and I am an 8th grader and I couldn't find the name of a polygon with 91 sides. i was a question from my math teacher. Penny Nom lui répond.
	1996^1999 and 1999^1996		2001-07-29
		Rajesh pose la question : what is greater 19991997 or 19971999? Chris Fisher lui répond.
	Where is the other $1?		2001-06-05
		Samantha pose la question : 3 people go to a motel. The room is $30. They split it $10 each. While in the room the Mgr. tells the clerk the room was only $25, so he gives her $5 to take back to the 3 people. On the way she cant decide how to split the $5 between the three people so she puts $2 in her pocket and gives them $1 each.....Therefore, the room now only cost the three people $9 each, which is $27 plus the $2 the clerk pocketed,making a total of $29.....Where is the other $1? Leeanne Boehm lui répond.
	1 = 0.999...		2001-04-13
		Joan pose la question : I have a middle grade math question for you. I would like to know why .9999... = 1 ? I can not use algebra to show this or the following: We agree that 2 = 2 and that 2-2 = 0, so 1.00000...... -0.99999..... ---------------- 0.000000...... and 0.000... = 0 therefore 0.9 = 1 ----------OR--------------- 1/3 = 0.333333 and 3 X 1/3 = 1, so if 3 X 0.333... = 0.999... then 0.999... = 1 My teacher says that I can not use the above example to show why this is true, and that I must use a couple different examples. He says that there are several other ways. Do you know any? I could really use the help because I can't think of any other ways to show this is true. Thanks for any help you can give. Penny Nom lui répond.
	4160		2001-03-07
		Jessica pose la question : The product of two consecutive page numbers in this book is 4160. What are the page numbers? Penny Nom lui répond.
	Divisibility by 16		2000-12-12
		Shiling pose la question : A number can be divided by 16 if and only if its 1st four digits can be divided by 16. How can you prove that? Penny Nom lui répond.
	Scheduling a golf vacation		2000-12-05
		Michael pose la question : I'm having a problem scheduling matches for a golf vacation. We have 12 people playing 7 rounds of golf in 7 days. We play 2 man teams vs. 2 man teams everyday.Is there a formula so that you play WITH a different partner everyday and AGAINST as many different people as possible? Thank You for any help you may be. Penny Nom lui répond.
	Hendecagon		2000-10-09
		Jillian pose la question : I need an example of a object that is in the shape of a hendecagon. I know what the shape is but I cannot come up with a real life example of an object that is this shape. Chris Fisher lui répond.
	1234567890		2000-09-14
		Bradley Kloetzly pose la question : Can you find two whole numbers, with the smallest possible difference between them, which when multipled together equal: 1234567890? Harley Weston lui répond.
	Using the inverse sine function		2000-05-31
		Nelson Rothermel pose la question : This has me completely baffled. I have to use the laws of sine or cosine to find the angles of a triangle when I have 3 sides, so I can't go 180-x-y when I have 2 angles. Now, I have a triangle with values of 3, 7, and 9. Here are the steps I used (A,B,C are angles; a,b,c are opposite sides): angle A (16.1951 degrees): cos-1*((b2+c2-a2)/(2*b*c)) angle B (40.6011 degrees): sin-1*(b*sin(A)/a) angle C (56.7962 degrees): sin-1*(c*sin(A)/a) If you notice, A+B+C does not equal 180. According to the book, A and B are correct, but C is supposed to be 123.2038 degrees. Why doesn't it work??? Harley Weston lui répond.
	A 100-gon		2000-05-24
		Chris Mohr pose la question : What is a 100-gon called? Harley Weston lui répond.
	The square root of -1		2000-05-19
		Gary pose la question : i am not a student i am just some one that heard something and i can't be sure on the answer...my ? is what is the square root of -1? i think it is -1 but not sure can you let me know please thank you Harley Weston lui répond.
	2^32 + 1		2000-04-08
		Un Etudiant pose la question : 232 +1 can be divided by 641 , why? Claude Tradif lui répond.
	1000 percent		2000-03-17
		Matt Stevenson pose la question : If one invests $4000.00 and makes 1000% on the investment would he/she have $40,000.00? Could one figure this by: $4000.00 * 10.0 = $40,000.00? So is 10 times a number the same as 1000%? Would 100 times a number be the same as 10,000%? Penny Nom lui répond.
	More on googols		2000-02-23
		Kevin Brennan pose la question : Could you please give me a couple of examples of when you MATH guys would use a google. Do youu measure, like, galaxies with it ? Or was it created to keep track of Mr Gate's bank account. Penny Nom lui répond.
	Bases other than 10		1999-12-06
		Garret Magin pose la question : We are doing a lesson on numbers of other bases than 10. We are working with binary, octal, and Hexadecimal. I was wondering what is used to represent number of different bases other then 16? Does it just continue on with the alphabet and if so what happens when you get to Z. It would be a help if you could answer this because it is really bugging me. And none of the math teachers at my school could let me know. Claude Tardif and Patrick Maidorn lui répond.
	Nines and ones		1999-11-05
		Greg Miller pose la question : Using the numbers 1, 1, 9, 9, only once each, how can I create an expression that equals 10 using only the basic functions of addition, subtraction, multiplication, division, and/or parentheses? Claude Tardif lui répond.
	A googol		1999-10-06
		Kevin Brennan pose la question : describe to me a guegoll is that how u spell it? it sounds like that Penny Nom lui répond.
	111...1222...2		1999-08-11
		Brad Goorman pose la question : Let N = 111...1222...2, where there are 1999 digits of 1 followed by 1999 digits of 2. Express N as the product of four integers, each of them greater than 1. Penny Nom lui répond.
	Base 2 to Base 10, conversion, convert		1999-05-08
		Larry Bader pose la question : 101000112 is the same as what number in Base ten? a. 83 b. 128 c. 93 d. 326 e. 163 Penny Nom lui répond.
	Large Numbers		1999-04-05
		CK pose la question : Hello. I need a lesson plan for grades 4 to 7 dealing with the concept of large numbers. Specifically, how to teach scientific notation. The lesson plan has to deal with the following: the size of the universe is so huge that is is almost beyond the ability of the mind to comprehend. One way is to measure... Chris Fisher lui répond.
	Root 17 is Irrational		1999-01-21
		John Murdock pose la question : If you could help me out with this I would appreciate it. Prove that the square root of 17 is irrational. Harley Weston lui répond.
	Place Value		1999-01-05
		Reg pose la question : I work in a Section 27 classroom with various grades. I am looking for assistance on how to deliver a lesson on place value:decimal numbers keeping in mind that they need to see it (visual) to comprehend. I am looking for grade 4-6 level. Jack LeSage lui répond.
	Golf Problem - The Sequel		1998-11-13
		Bob pose la question : Sixteen golfers, seven rounds. What are optimum combinations for each golfer to play with as many different golfers as possible? Many thanks, Bob Payson Denis Hanson lui répond.
	Divisibility by 11		1998-10-28
		Pat Duggleby pose la question : I am an upgrading instructor at a drop-in program in Regina. One of my students is taking General Math 30 through correspondence, and we have run into some confusing instructions. The section is about divisibility rules, and we did just fine up until the rule for Divisibility by 11. The statement is as follows: If the difference between the sum of the odd-numbered digits and the sum of the even-numbered digits, counted from right to left, is divisible by 11, then the number is divisible by 11. . . . Penny Nom lui répond.
	3 to the power of 1994		1998-09-05
		Kim Tangney pose la question : What are the last two digits of: 3 to the power of 1994 7 to the power of 1994 3 to the power of 1994 + 7 to the power of 1994 7 to the power of 1994 - 3 to the power of 1994 Penny Nom lui répond.
	Golf problem		1998-08-25
		Bob pose la question : Twelve golfers plan to play seven rounds of golf. Each would like to play as many rounds with different golfers as possible. What are the optimum combinations to accomplish that goal? Denis Hanson lui répond.
	The sum of the angles of a triangle is 180 degrees		1998-02-19
		Quin Liu pose la question : How do you prove that the sum of the angles of a triangle is 180 degrees? Is there a proof? what is it? Chris Fisher lui répond.

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