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	Calculer la hauteur de chute de cette pierre		2000-12-16
		Marcus pose la question : Une pierre tombe au fond d'un puit, à 5 secondes on entend un son (de la pierre). Calculer la hauteur de chute de cette pierre en tenant compte de la vitesse du son = 340m.s-1 Il faut savoir que pour la chute libre v= g.t ; h = 1/2 g.t2 ; v = 2g.h g intensité du champs de pesanteur = 10 ; h hauteur de chute. Claude tardif lui répond.
	logarithme neperien		1999-11-10
		Louise Kieffer pose la question : D'où provient la valeur e ( 2,7....) des logarithmes népériens ? Claude Tardif lui répond.
	Percentages		2019-03-30
		Mari pose la question : I am trying to find out what percentage of our worlds population does the youtuber Pewdiepie have for subscribers? So he has 91 million subscribers and there are roughly 7.53 Billion people in the world. So what percent of our worlds population does Pewdiepie have for subscribers? Am I asking this correctly? I am just curious for marketing reasons and how much of the worlds market share does Pewdiepie have for his youtube channel? I just do not know how to set up the problem to find the answer? 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.
	A pie chart		2016-12-05
		vickie pose la question : Determine the central angle needed to form a pie chart for the following housing characteristic data: 63% owner occupied, 27% renter occupied, and 10% vacant Penny Nom lui répond.
	A kinky curve		2016-10-06
		tammie pose la question : Koch’s kinky curve is created by starting with a straight segment and replacing it with four segments, each 1/3 as long as the original segment. So, at the second stage the curve has three bends. At the next stage, each segment is replaced by four segments, and so on. How many bends does the curve have at the third stage? Penny Nom lui répond.
	Two pieces of rope		2016-05-21
		Render pose la question : Fred cuts a 12- inch piece of rope. Then he cuts a second piece of rope that is 3/2 longer than the first piece. Is the second piece shorter or longer than the first piece? Explain. Penny Nom lui répond.
	15.86 acres		2016-04-21
		Ronald pose la question : If a rectangular piece of land is 1320 ft. on one side, how many feet would be required on the other side to equal 15.86 acres? Penny Nom lui répond.
	The range of a function defined piecewise		2016-01-13
		sarah pose la question : f(x)={x-2, x<-2        {x^2-4, -2_<x_<2        {x+2, x>2 find the range Penny Nom lui répond.
	A piecewise function		2015-04-25
		uday pose la question : f(x)={x^2+3x+2 / x+2, x(not equal to)=-1 {4, x=-1 how to find domain and how the graph looks like 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.
	A piecewise graph		2014-05-10
		Zoe pose la question : Lightning Energy charges residential users for each unit of electrical energy bought from them each quarter, according to the scale below: 0-500 units cost 17 cents per unit 500-1500 units cost $85 plus 10 cents for each unit in the excess of 500 1500 or more units cost $185 plus 9 cents for each unit in excess of 1500 Sketch a graph showing the charge C as a function of U for up to 2000 electricity units Penny Nom lui répond.
	The locus of a point		2014-04-04
		srishti pose la question : A point P moves such that the difference between its distance from the origin and from the axis of x is always a constant c . what is the locus of the point? Penny Nom lui répond.
	Graphing piecewise functions		2014-03-29
		Rayven pose la question : Hi! I'm in eighth grade, taking ninth grade algebra 1. I'm confused as to how to graph piecewise functions. I know that you have already answered a question similar to this (I did my research first) but it didn't completely help me on my homework. I have to graph piecewise functions for the specified domains, and create a table for the absolute values. I know that two bars around a number means absolute value (two bars around -2 makes it +2) , but how do I graph and chart the absolute value for the following: f(x)= |x+3 | for -5≤x≤3 And then graph and chart: (on a separate graph): f(x)= {x if x≤0 {x+1 if x <0 thank you! ~Rayven Penny Nom lui répond.
	A function with 3 asymptotes		2012-10-19
		rimoshika pose la question : find a function that have 3 Asymptotic : y=x/y=sinx/x=-1 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.
	A pie chart		2012-05-01
		muhammad pose la question : How can i construct a pie chart on the following of the combunation of students:- Sos 50, Crs 25, Eng 100, Iss 75, Geo 150, Hist 10 Penny Nom lui répond.
	A taxi ride		2010-09-22
		Jack pose la question : A taxi ride costs you $2 for the first km and 10 cents for each tenth of a km thereafter. Sketch a graph of the total cost $C(x) for a ride of xkm, for 0 < x < 2. Hint: The graph is not smooth. How will I start this question off? I tried the table of values method, and then graphed it, but it comes out as smooth, Stephen La Rocque lui répond.
	An equation for a line with a changing slope		2009-03-21
		Ben pose la question : Is there anyway to write an equation for a line with a changing slope. e.g. A cell [hone company has a initial fee of 50$ paying for the first 100 minutes, the rate then increases to 10 cents per minute, then at 500 minutes the rate is 5 cents per minute. If so please tell how. Thanks Penny Nom lui répond.
	y = p q^t		2009-02-12
		Conor pose la question : y= p x (q (to the power t) ) ; y= 100 when t = 2 and y= 4 when t= 0 a) find p and q b) hence find y when t=4 Stephen La Rocque lui répond.
	A piecewise function for monthly salary		2009-02-03
		Josh pose la question : A sales rep for a drug company is paid on the following scale. His base salary is $1600 per month. He is also paid a commission of 2% of sales over $20,000. When his gross sales reach $30,000 he is then paid 4% on the amount above that until his sales reach $50,000 after which point his commission becomes 6%. His commission reaches 8% when his sales total goes over $100,000 for the month. Set up a piecewise function for the information above. Harley Weston lui répond.
	Graphing a piecewise function		2008-08-12
		Shanti pose la question : how do you graph a step function or piecewise function such as u^2 if u is greater than or equal to -2 and less than 1 2- u if u is greater than or equal to 1 and less than 4 Penny Nom lui répond.
	A piecewise equation		2008-06-16
		John pose la question : AT&T charges $39.99 for 450 minutes per month. It charges 45 cents per minute over the 450 minutes. How can I make a piecewise equation of this problem? Penny Nom lui répond.
	The wedges in a circle graph		2008-05-18
		Libby pose la question : I don't understand how to do this word problem: The cafeteria workers distributed a survey to the student body asking students to pick 1 from a list of 5 choices for their favorite lunch. The circle graph below gives the results of the survey for the students who responded. What is the measure, in degrees, of the central angle for each choice? And there is a pie chart that has food choices with these percentages: 25%, 20%, 15%, 10%, and 30% Leeanne Boehm and Penny Nom lui répond.
	Belled-out pier		2008-01-28
		Gina pose la question : I need to know how to find the total yards needed to fill a concrete pier that is 54"/ 108" and 26' deep. That is...54" @ the top of the pier belled to 108" @ the bottom...26' deep. Stephen La Rocque lui répond.
	Pie graphs		2008-01-15
		amarilis pose la question : explain why circle graphs are called pie graph or pie charts Stephen La Rocque lui répond.
	Piecewise Functions		2007-02-09
		Steph pose la question : h(x)={-2 if x<0 {x+1 if 0< x <10 {-1/2x+16 if x>10 PLEASE HELP Penny Nom lui répond.
	Piecewise functions		2006-11-08
		Kait pose la question : We discussed how to graph piecewise functions today and I'm very lost!! I'm sitting here staring at this problem that says: f(x){2x+1, if x <1 f(x){-x+4, if x is greater than or equal to 1. Penny Nom lui répond.
	Piecewise functions		2006-09-24
		Claudia pose la question : hi! i was just looking at a question by someone else about piecewise functions, but i still don't get it. my problem is g(x){x+2 if x <-2} g(x){2x - 1 if x> or = -2} Penny Nom lui répond.
	Piecewise functions		2006-03-21
		Kris pose la question : First Problem: Southeast Electric charges .09 cents per kilowatt-hour for the first 200 kWh.The company charges .11 cents per kilowatt-hour for all electrical usage in excess of 200 kWh. How many kilowatt-hours were used if a monthly electric bill was $57.06? The answer I came up with is 360, is that right? and also how do I set it up in an equation form? Second Problem: A construction worker earned $17 per hour for the first 40 hr of work and $25.50 per hour for work in excess of 40 hr. One week she earned $896.75. How much overtime did she work? I came up with 8.5 hrs over-time worked. Again I don't know how to set up the equation to come up with the answer. I need some pointers on how to figure out story problems! If you have any suggestions that would help me out I would be very grateful. Penny Nom lui répond.
	The square footage of an area in my backyard		2006-03-17
		Kim pose la question : I need to find out how to calculate the square footage of an area in my backyard that is in the shape of a "slice of pie". There are two sides that are straight lines that come together at the top to form a point, and then at the bottom is a curved line that joins the two other lines together. I need to figure out how to calculate the square footage that is inside the area. Penny Nom lui répond.
	A 3-dimensional pie shape		2005-09-17
		Bill pose la question : Your site appeared in my search for the name of a 3-dimensional pie shape. 2-d would be a sector of a circle. As it it curved, I don't believe it is in a the polyhedra family. Can you help me find the mathematical term for it? Chris Fisher lui répond.
	A piecewise function		2005-09-15
		Duncan pose la question : A child is assigned to your care and she has a headache. The parent has authorized the administration of Children's Tylenol. Read a box of Children's Tylenol (or any other similar drug) and find the directions for administration. Note the child's weight and the corresponding dosage. (Be sure the drug you choose has a minimum of 4 weight intervals.) Penny Nom lui répond.
	1 pied linéaire		2005-02-18
		Christiane pose la question : Pouvez-vous m'indiquer 1 pied linéaire égale quoi? 3 pied....? Claude Tardif lui répond.
	f(x) = x-4 if x<2		2004-09-21
		Dani pose la question : Hi, my name is Dani. I'm in tenth grade Algebra 2, and I'm learning about a lot of different kinds of functions, and I can't quite seem to understand how every part of the piecewise function works. I understand most of it, I think, but I've been looking at an example in my math book, and I'm not sure how they got the answer they did. The part I don't understand reads: "Graph f(x) = x-4 if x<2" and "Identify the domain and range." The picture in the book shows an open circle at (2,-2), with an arrow going down and to the left with the slope being one. How did they get the open circle to be at (2,-2), and why does the arrow point where it does? Penny Nom lui répond.
	Three dice		2004-05-10
		A student pose la question : If one has 3, 6 sided dice what is the probability of the numbers that are rolled to total 4 through 10 inclusively? Subsequent to this, what is the probability to do this consecutively...say 3 times? Peny Nom lui répond.
	Logarithms		2004-02-01
		A student pose la question : Where did the word logarithmic come from? Where/whom did it originate? Harley Weston lui répond.
	Graphing a piecewise function		2003-08-24
		Amber pose la question : How do i begin to graph a piecewise function, absolute function or step function? Penny Nom lui répond.
	Divide a circle in 8 equal pieces		2003-04-04
		Naomi pose la question : I have to divide a circle in 8 equal pieces but can only cut 3 times can you please help me Penny Nom lui répond.
	Friends and enemies		2003-03-24
		Becky pose la question : Consider a room that contains six people. Any two people are either friends of each other, or they are enemies. A. Argue why there are three people, all who are friends, or there are at least three people, all who are enemies B. Rephrase the situation using graph terminology, using all of these terms correctly: vertex, edge, graph, complement, clique, independent set, and bipartite. Penny Nom lui répond.
	What really is pi?		2002-09-05
		Rachel pose la question : what really is pi? 3.1444 Penny Nom lui répond.
	Nickles, dimes, quarters and fifty cent pieces		2002-01-08
		A parent pose la question : The total for all coins counted is $4,564.50 The last coin added to the pile is a 50 cent piece There are 8 times as many 50 cent pieces as there are quarters There are 6 times as many dimes as nickles How many of each are there? Penny Nom lui répond.
	2/3 vs 3/4		2002-01-02
		Julia pose la question : So, here's my question. Some of the problems they've had to do starts off with two fractions, and they have to tell whether the two fractions are: The first one is greater than the second one The first one is less than the second one, or They are equal. One day my son had the problem of 2/3 vs 3/4. Without drawing out a pie chart, how in the world can a child "eyeball" a problem like this and tell what the correct answer is? I've also tried to teach about making common denominators, but that's going over his head at this point. Denis Hanson and Harley Weston lui répond.
	Sharing a donut		2001-09-06
		Amanda pose la question : You have invited 11 people over to your house one day, and your friends are hungry. You go into the kitchen and find out you only have 1 donut (with a hole in the middle). In order to feed 12 people (including you), you must cut the donut into 12 pieces with only using a straight knife and cutting 3 times. This is NOT a trick question. Claude Tardif lui répond.
	A piecewise linear equation		2000-11-24
		Jacky pose la question : There is a light bulb and it is given that the light bulb cost $0.75 and the cost of operating it is $0.0081 per hour. From the information give, I came up with the linear equation: Let c be total cost and Let h be hours used. Therefore: c = 0.0081h + 0.75 represents the total cost of the light bulb and the electricity. However, the second part of the question added the fact that the light bulb will only last for 800 hours. If the light bulb is replaced as soon as it burns out exactly after every 800 hours, how can I write an equation that represents that? Is it possible? What would it look like on the graph. Harley Weston lui répond.
	Two calculus problems		2000-05-01
		Kaushal Shah pose la question : How Do WE Integrate the following Functions, Integral xtanx dx How was natural base "e" discovered and why e=2.7....... Claude Tardif lui répond.
	Counting guppies		2000-01-26
		Sarah Albaugh pose la question : Out of 200 fish, 99% are guppies. How many guppies must be removed to have 98% of the remaining fish to be guppies? Penny Nom lui répond.
	Cutting a board into 8 equal pieces		1999-10-21
		Brittany pose la question : Jamie wanted a board cut into 8 equal pieces. The Lucas Lumber Co. charges 60 cents for cutting a board into 4 equal pieces. How much will it charge for cutting Jamie's board? Claude Tardif lui répond.
	Piecewise functions.		1999-10-20
		Jenny pose la question : How do you figure out a piecewise function by hand? e.x. ( 2x (if x is not equal to 0) f(x)=< ( 0 (if x is not equal to 0) Harley Weston lui répond.
	John Napier and e		1999-02-06
		Shimin pose la question : I would like to ask about the exact definition of e, its history (like how John Napier came about discovering it) and its applications in problems and real life situations. Thank you! Chris Fisher lui répond.
	Logs		1998-10-21
		Benny pose la question : What does log means? How come we have to use log Chris Fisher lui répond.

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