







Strings of letters 
20220425 

Javar pose la question : How many different combinations can I make with A 12 selection list but only
using A&B
Example:
A,B,A,B,A,B,A,B,A,B,A,B
A,B,B,A,A,B,B,A,A,B,B,A
B,B,A,A,B,A,B,A,B,A,A,B penny Nom lui répond. 





Bearing and distance 
20210222 

bahlqees pose la question : A girl starts from a point X and walks 220m on a bearing 063°.she then walks to a
point Y on a bearing 156°.if Y is due east of X,calculateXY solve and
draw the diagram please Harley Weston lui répond. 





Factoring an interest formula 
20200929 

Kenneth pose la question : Hello
P + Pr has a common factor of P so it can be expressed as P(1 + r) after the P is factored out..
How does the "P" get in front of (1 + r)?
P/P + Pr/P = 1 + r What step is used to show that P is added in front of (1 + r)?
I thank you for your reply. Harley Weston lui répond. 





Bearings 
20200830 

Tom pose la question : A boy walks 5km due North and then 4km due East
I. Find the bearing of his current position from his starting point
II. How far is the boy now from the starting point Penny Nom lui répond. 





4 digits to unlock a padlock 
20200828 

Sophie pose la question : I have forgotten the order in what the numbers go for my padlock! The numbers are, 0125, they don't have any repeats like, 0001, 0002. What are all possible the combinations? Help! Penny Nom lui répond. 





Some strings of 4 digits 
20200626 

Judy pose la question : I wrote previously and need more help. I need to generate a list of 4 digit. Numbers using 09 with no repetitions
I know that there is a 6 followed by a 2. Order does matter
Thank you in advance for your help. Penny Nom lui répond. 





Strings made from three characters 
20191210 

Kelley pose la question : Hi,
I vaguely remember some formula for determining all the possible combinations of a set of numbers (or whatever).
If I have 3 numbers (0  2), then I have 0, 1, 2, 00, 01, 02, 10, 11, 12, 20, 21, 22, 000, 001, 002, 010, 011, 012, 020, 021, 022, 100, 101, 102 and so on.
What is the formula for determining all potential results?
Thank you!!
Kelley Penny Nom lui répond. 





Bearings 
20191105 

Deborah pose la question : three ships p q and r are at sea. the bearing of q from p is 30° and the bearing of p from r is 300°. if PQ=5km andPR=8km
I.illustrate the information in a diagram
II. calculate correct to 3sf the I. distance between Q and R. II. bearing of R from Q Penny Nom lui répond. 





Bearings 
20190922 

Jean pose la question : X is due north of Y and 2km distant. Z is due east of Y and has a bearing of S35°12'E from X. How far, to the nearest metre, is Z from X? Will you help me solve this problem? Harley Weston lui répond. 





The bearing from C to A 
20190315 

Emma pose la question : A is 6km due north of turbine B,
C is 4.5km due west of turbine B
Calculate the distance AC
Then calculate the bearing of C from A
Give your answer correct to the nearest degree Penny Nom lui répond. 





Factoring n^2+3n270 
20190211 

Ashley pose la question : n^2+3n270 Penny Nom lui répond. 





Numbering pages 
20190120 

chungus pose la question : It takes 852 digits to number the pages of a book consecutively. How many pages are there? Penny Nom lui répond. 





Ordering fractions 
20181125 

Mae pose la question : order these from least to greatest:
19/6, 3 5/14, 83/21 Penny Nom lui répond. 





Taking 6 pills 
20180529 

Dave pose la question : My motives are simple, I want to get revenge on my brother who, unbeknown to me,
repeatedly cheated when we played online Scrabble! Can you help?  he has posed this
question knowing that I'll struggle to get the solution.
Question: He is taking 6 pills a day, if he takes the pills in a different order each day,
how long will it be before he takes the pills in the same order on the same date again?
I think leap years might come in to it!
Will I confess to using you guys?  I'll think about that one. Penny Nom lui répond. 





Write these fractions from greatest to the least 
20180518 

angela pose la question : math fraction greater to the least
1\5 ,1\2 or 1\4 Penny Nom lui répond. 





Factoring a quadratic 
20180402 

Billy pose la question : I need help factoring the following question:
4x(squared) 10x +16. Penny Nom lui répond. 





Which movie lasts longer? 
20180314 

YKJAJA pose la question : Which movie lasts longer than the other?
A) “space adventure” lasts for 1 2/3 hour
B) “animal world” lasts for 15/12 hour Penny Nom lui répond. 





How many guests were present? 
20170917 

SM pose la question : How many guests were present at an Italian dinner if every 2 guests shared a bowl of salad, every 3 guests shared a bowl of pasta, and every four guests shared a bowl of meatballs, and there were 65 bowls used altogether? Penny Nom lui répond. 





Ordering fractions 
20170525 

Esmeralda pose la question : How May i order this 30%,3/100,7/20 and 0.33 from least to greatest Penny Nom lui répond. 





Solve 3x^219x14=0 for x 
20170315 

nick pose la question : I'm an 8th grader and am quite confused with this equation:
3x^219x14=0
The answer is:
2/3 , 7
But I'm not sure how to solve for it. Penny Nom lui répond. 





Covering the ceiling of a garage 
20170220 

DeAnna pose la question : I am trying to drape a 15 x 30 garage with yards of fabric. If the yard of fabric is 60 inches wide, would 10 1/4 yards be enough for my space? Penny Nom lui répond. 





Write these numbers from greatest to least 
20161222 

lsaiah pose la question : write the following numbers from greatest to least
3 1/2, 7/3, 80%, 2.5, 0.94 Penny Nom lui répond. 





Covering a floor with plank flooring 
20161204 

sandra pose la question : my bathroom is 5'x6'.2"
i want to purchase plank flooring which covers 19.8 sq ft per box.
how many boxes would i need. Penny Nom lui répond. 





A ship and a light 
20160811 

Kirby pose la question : A ship is sailing due west when a light is observed with heading 297°50' from the ship. After the ship has travelled 2250 feet, the light heads 311°55' from the ship. If the course is continued, how close will the ship approach the light? Penny Nom lui répond. 





Covering a site with 6 inches of rock 
20160426 

Carla pose la question : if a pump house that measures 20'x16' sits in the middle of a site that is 50'x60' and you apply crushed rock to the site at depth of 6", how many yards will you need to haul? Penny Nom lui répond. 





Strings of characters 
20151228 

Ali pose la question : If I have an app and offer a two, three and four digits name and it can be only number, letters or both?
I want to know how many options will I have for each?
For example
the two digits: aa, 11, a1 or 1a
the three digits: 111, a2a, 222
the four digits: 1111, 2ge3 or 1234
So if I used all the letters and all the numbers but nothing starts with a zero
How can I calculate them separately? Or what's the result for each?
Thank you
Ali Penny Nom lui répond. 





Is 22/7 bigger or smaller than 3.14? 
20151106 

Natalie pose la question : Is 22/7 bigger or smaller than 3.14? Harley Weston lui répond. 





Factoring a trinomial 
20151102 

Eric pose la question : 2v(squared) +11v +5 Penny Nom lui répond. 





Ordering fractions 
20150327 

latoya pose la question : Put the following amounts in order from greatest to least 60%,2/3,0.599 explain answer Penny Nom lui répond. 





Bearings and a rectangular plot 
20150214 

Mubashir pose la question : A,B,C,D are the four corners of a rectangular plot marked on level ground. Given that the bearing of B from A is 040 degrees and that the bearing of C from A is 090 degrees. Calculate the bearing of
(a)B from C
(b)A from C
(c) D from C Penny Nom lui répond. 





The product of a 2digit number and a 3digit number 
20150206 

Nathaniel pose la question : The product of a 2digit number and a 3digit number is about 50 000 what are the products Penny Nom lui répond. 





2x^22x+1=4x+1 
20150206 

Caitlyn pose la question : 2x^22x+1=4x+1 Penny Nom lui répond. 





Comparing fractions 
20150202 

shealla pose la question : Please help me with my assignment please I'm having trouble answering this one..
Write the larger fraction in each pair..
A. 2/3, 4/7 B. 1/3, 2/5 C. 5/8, 3/5 Penny Nom lui répond. 





Factorise 15x + 15y 
20141120 

Jordan pose la question : hi i saw a question in class today that i didn't understand and i didn't really understand what my teacher was going on about so how do you factorise 15x + 15y Robert Dawson and Penny Nom lui répond. 





Two ships 
20141118 

Laura pose la question : 7. A ship leaves its home port and sails on a bearing of N28.17°E. Another ship leaves the same port at the same time and sails on a bearing of S61.83E. If the first ship sails at 24 mph and the second at 28 mph find the distance between the two ships after 4 hours. Robert Dawson lui répond. 





A factoring problem 
20141005 

Gina pose la question : 3x^2+6x+3 Penny Nom lui répond. 





Sharing in the ratio of of 2:3:5 
20140711 

Muzdalfah pose la question : Amount of Tsh 12,000 is to be shared among John,Hidaya and sabrina in the ratio of
of 2:3:5 respectivly.How will each get? Penny Nom lui répond. 





Covering a 12 inch by 12 inch square hole 
20140702 

Patricia pose la question : I am putting in a new bathroom fan. I am wondering if a new light with a 15 inch diameter will cover the existing square hole which is 12 by 12 inches? If the existing hole is 11 1/2 by 11 1/2 inches?
Also, if the 15 inch diameter does not cover the 12 by 12 hole, what size diameter would?
Thank you. Penny Nom lui répond. 





A triangle on the surface of the Earth 
20140626 

Christine pose la question : A, B and C are three towns, the bearing of B and C from A being 310 degrees and 220 degrees, and their distances from A are 510km and 700km respectively. Find the bearing of B from C to the nearest minute. Robert Dawson lui répond. 





6 character strings using 1, 5 and 9 
20140615 

Kevin pose la question : How many 6 digit combinations (i.e., 159159) can be made from 3 different numbers (i.e., 1,5, and 9)? The numbers will obviously have to repeat. A link to a calculator that could list all the combinations would be helpful. I've come across these sites: http://textmechanic.com/PermutationGenerator.html, and http://textmechanic.com/CombinationGenerator.html , but am not sure how to use them for my specific case. Thanks. Penny Nom lui répond. 





Golf for 8 playing 7 rounds 
20140403 

Evan pose la question : We are going on a golf trip to Scotland and are trying to work out the pairings. There are 8 of us playing 7 rounds. We would like to be partnered up in 2's with everyone once and have evenly split up foursomes. Thanks for the help Victoria West lui répond. 





12 golfers, 6 rounds 
20140327 

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. 





A cable around the Earth 
20140313 

fikile pose la question : By how much must an equatorial cable be extended in order that it runs 1meter above the ground? Penny Nom lui répond. 





Radio direction finders 
20140109 

Nathan pose la question : Radio direction finders set up two points A and B, which are 2.5 miles
apart on an eastwest line. From A, it is found that the bearing of a
signal from a radio transmitter is N36.33 degress E, while from B the
bearing of the same signal is N53.67 degrees W. Find the distance of
the transmitter from B. Penny Nom lui répond. 





Can 100r^281z^2 be factored? 
20131208 

Rosa pose la question : Can 100r^281z^2 be factored? Penny Nom lui répond. 





Factor 
20131201 

Rosa pose la question : How do you factor 9x^2  12y^2? Penny Nom lui répond. 





A string wrapped around three circles 
20131019 

Jim pose la question : A recent puzzle ' find the length of a string around 3 touching
1 meter diameter circles ' gave this answer : the string
touches 120° (or pi/3 meters) of each circle. Then
3(1+pi/3) = 3+pi meters is the required length. I do not see how
it was determined that the string touches 120° or pi/3 meters?
Please explain . Thankyou , Jim Penny Nom lui répond. 





Factor strings 
20131014 

Jane pose la question : What's a factor string? I'm confusey in the head. Penny Nom lui répond. 





If the earth was made of a ball of string 
20130918 

Tammy pose la question : My 9 year old son asked me a question and I have no idea how to work it out! Please can you help?
If the earth was made of a ball of string and you unravelled the string how long would it be? Assuming the string is 5mm thick. Penny Nom lui répond. 





Covering a styrofoam ball with fabric 
20130911 

Alice pose la question : I am trying to create a pattern in order to cover a styrofoam ball with fabric. The pattern needs to be done in such a way as to have only a center seam, rather than several vertical lines as in slicing a melon. Chris Fisher lui répond. 





The square footage of a 17 inch by 17 inch tile 
20130518 

Leroy pose la question : How do I calculate the square footage of a 17inch by 17 inch tile Penny Nom lui répond. 





The rings of a bull's eye 
20130428 

Math pose la question : The bull’s eye of a target is a circle 20 cm in diameter. It is surrounded by four rings, each 15 cm wide. Find the area of each ring. Penny Nom lui répond. 





Sharing in a car rental 
20130409 

Marilyn pose la question : 8 persons are planning to share equally the cost of a rental car.
If 1 person withdraws from the arrangement and the others share
equally the entire cost of the car, then the share of each of the
remaining persons is increased by? Penny Nom lui répond. 





Four digit "combinations" using 0124 
20130227 

Ayana pose la question : What are all the possible four digit combinations using 0124. Please list them for me. Thank you. Penny Nom lui répond. 





A boy walks 3km due east and 4km due north 
20130201 

Kayode pose la question : Question from Kayode
A boy walks 3km due east and 4km due north. Find the bearing of the final point and the distance of the final position from the starting point. Harley Weston lui répond. 





Factor x^6  64 
20130125 

Taylor pose la question : Hi, I am having trouble factoring x^664. Could you help me? Penny Nom lui répond. 





Mod versus Rem in Turing 
20130101 

Eric pose la question : I am a teacher teaching computer science using Turing. I am having
difficulty understanding why one would use the mod operator versus the rem
remainder operator.
Mod seems to make the resulting sign depend on the sign of the divisor,
whereas rem makes the resulting sign depend on the dividend.
Examples:
11 mod 5 = 1 and 11 rem 5 =1
11 mod 5 = 4 and 11 rem 5 = 1
11 mod 5 = 4 and 11 rem 5 =1
11 mod 5 = 1 and 11 rem 5 = 1
What I can't understand is why this would matter. For example, 11 / 5 =
2.2 and 11 / 5 = 2.2 get the same result.
So how is a remainder dependent on the sign of one of the parts?
What benefit would using one over the other have?
Any insight would be most helpful!
Eric Harley Weston lui répond. 





Factor (6a^25a+1)(8a^26a+1)(12a^27a+1) 
20121116 

bailey pose la question : Factorise f(a)=(6a^25a+1)(8a^26a+1)(12a^27a+1)
thus find [f(a)]^1/2 Penny Nom lui répond. 





My compass was off by 8 degrees 
20121030 

Oscar pose la question : If I walked 620' and my compass was off by 8 degrees how many feet from my heading was I?
Thank You Penny Nom lui répond. 





Factoring 
20120910 

saravanan pose la question : Dear Sir ,
I felt difficulty solving the following problem . So please help me .
a+b+c=7
ab+bc+cd= 20
what is a^2+b^2+c^2 ? Lorraine Dame and Robert Dawson lui répond. 





Ordering fractions 
20120822 

Imani pose la question : I am a 6 th grader and on my homework it asks to order the fractions from least to greatest 11/12, 9/10, 10,/11, 15/16. Please help with solving this question. Penny Nom lui répond. 





Bearings 
20120719 

olawale pose la question : an airplne flew from a city X on a bearing of 225deg. to another city of Y a distance 200km away. it then flew from city Y on a bearing of 30deg.w to city Z a distance of 250km. calculate the distance from X to Z correct to the nearest whole number. and also calculate the bearing of city X from Z. Penny Nom lui répond. 





Probability and curling rings 
20120716 

Fatima pose la question : In the olympic event of curling, the scoring area consists of four concentric circles on the ice with radii of 6 inches,
3 feet, 4 feet, and 6 feet
If a team member lands a (43 pound) stone randomly within the scoring area, find the probability that it ends up centred on
a.red b.white c.blue
I am explaining the figure also in words
The smallest Circle is of White color then a blue colour circle then again a White colour circle then the last big circle of red color
The answer for a bit is 5/9
I tried it with many ways but I am not getting the answer
Please clearly tell me what is n(S)and what is n(E). Penny Nom lui répond. 





Factoring 
20120426 

Amanda pose la question : y=x^29x Penny Nom lui répond. 





Factoring a quadratic 
20120313 

Makell pose la question : X^2 + 32x + 220 = 0 Penny Nom lui répond. 





Wallpapering a room 
20120208 

jimmy pose la question : Ms. Frank is going to
wallpaper a living room with dimensions
24 feet long, 18 feet wide, and 8 feet
high. What surface area does Ms. Frank
plan to wallpaper? Penny Nom lui répond. 





Ordering Fractions 
20111116 

Chloe pose la question : hey okay im having trouble with a math question. how do you put these fractions in number order
8/14 11/28 3/7 Jaymi Schmidt lui répond. 





Ordering fractions 
20111116 

Laya pose la question : Order from least to greatest
2/3, 1/2, 5/12 Jaymi Schmidt lui répond. 





Expanding the size of a table 
20111016 

Ericka pose la question : You are working as a carpenter in an industrial Shop. A customer came to you and inquired about the size of the table which would be fitted in her room. She informed you that she had already a 1.5 x 1m table in her room but she wanted to maximize the space by adding the same amount to is length and width. She is planning to occupy a 3 square meter place on her room for her to work comfortably. She is requesting you a written recommendation before she asked to make a table. What amount should be added to both sides to maximize a 3 square meter area? Penny Nom lui répond. 





Ordering fractions 
20110817 

Myon pose la question : My problem is putting fractions from least to greatest and they are 1/4 2/5 1/3 4/6 1/2 8/9 3/4 1/1 2/6 1/10 thanks Penny Nom lui répond. 





Ordering fractions 
20110320 

Yasmine pose la question : what's the answer, greatest to least
3/8 1/4 2/3 Penny Nom lui répond. 





Factor 10x^2+17x6 
20110303 

Jeff pose la question : Factor 10x^2+17x6 with steps and explanation. Penny Nom lui répond. 





Ordering fractions 
20110301 

amanda pose la question : I am utterly confused my son needs to order 3 different fractions from least to greatest such as 3/6, 5/6 & 4/6 I read your explanation on how to do it but I was still confused is there a more simpler method? Robert Dawson lui répond. 





Factoring with fractions 
20110215 

Megan pose la question : Hi there,
I'm working on factoring polynomials but this question has me quite puzzled.. im a college student in my first year.
(x^2a^2/xy)(xy/x+a) Penny Nom lui répond. 





Ordering fractions 
20101214 

serita pose la question : 1/2,2/4,4/8 how do you do least to greatest Penny Nom lui répond. 





Ordering mixed numbers 
20101123 

kate pose la question : what are the mixed numbers 5 7/9, 5 1/2, 5 11/18. put least to greatest? Penny Nom lui répond. 





Ordering fractions 
20101114 

Alexia pose la question : I am having real trouble with how to order 18/11 , 2/5 ,6/15 from least to greatest can you give me a step by step real easy way to do it? Penny Nom lui répond. 





Factoring cubics and quartics 
20100929 

Tori pose la question : How do you factor these types of questions:
* x^3  4x^2  x + 4
*2x^3  3x^2  4x  6
*x^4  15x^2  16 Robert Dawson lui répond. 





COMPASS BEARING 
20100922 

Vivinne pose la question : Three boys, Isaac, Alex and Ken are standing in different parts of a football
field.Isaac is standing 100m North of Alex. Ken is 120m East of Alex. Find
the compass bearing of Ken from Isaac. Stephen La Rocque lui répond. 





Ordering fractions 
20100824 

COCO pose la question : Hello. I am having lots of trouble with these types of problems. Here is one of them:1/2 1/18 3/6. And I need to order them from greatest to least. Please also explain how to do it. Robert Dawson lui répond. 





Comparing percentages 
20100614 

Anouska pose la question : In category A, Annie gave 5 out of 6 responses. I make this 83%
I the same category, Adam gave 4 out of 10 responses. I make this 40%
Does this mean that Annie gave 43% more responses in this category than Adam? Robert Dawson lui répond. 





A quartic equation 
20100518 

Austin pose la question : Z^410z^2=9 Penny Nom lui répond. 





How many 20"X20" tiles do I need to cover 90 sq. ft? 
20100323 

Karen pose la question : How many 20"X20" tiles do I need to cover 90 sq. ft. Penny Nom lui répond. 





Ordering fractions 
20100226 

jessie pose la question : I'm having alot of trouble with orderig fractions from least to greatest! I'm in 5th grade....and my problem is, 5/8,1/2, and 3/4
I need to know HOW to order them.........can anyone give me a simple explanation? Penny Nom lui répond. 





Ordering fractions 
20100226 

Brianna pose la question : I'm a seventh grader and we're learning about fractions. How would you list the numbers in order from least to greatest?
The options:
A. 9/14 , 17/28 , 11/21
B. 17/28 , 9/14 , 11/21
C. 9/14 , 11/21 , 17/28
D. 11/21 , 17/28 , 9/14 Penny Nom lui répond. 





Factoring 
20100108 

jim pose la question : i am having trouble with grade 12 factoring in general, i just do not understand it, please help! here is and example of a question:
12ac+28bc3ad7bd and it gets tougher from there like 7a(squared)14ab+7b(squared) any help is greatly appreciated Stephen La Rocque lui répond. 





Factoring 
20091119 

danyelle pose la question : 81x^2+36x+4
factoring i dont understand it at all Robert Dawson lui répond. 





4 squared and (4) squared 
20090929 

Andrea pose la question : Is 4 squared the same as (4) squared? I am thinking the first is 16 and the second is +16. I am trying to clarify for my students. Penny Nom lui répond. 





Comparing fractions 
20090928 

TeeTee pose la question : I am in 6th grade. I have to order these fractions from least to greatest: 3/4, 2/5,
5/8, 1/2.....How do I order them if I dont know where to start, and how would I
find these answers...Please Help! :) Penny Nom lui répond. 





Ordering numbers 
20090919 

tattiana pose la question : how do you order these numbers from greatest to least .625,.75,.20, and .5 Penny Nom lui répond. 





Factoring 
20090823 

Bj pose la question : Solve for x: 5x^2  35x = 0 Stephen La Rocque lui répond. 





Factoring a quadratic 
20090616 

Rebecca pose la question : solve the quadratic equation by factoring.
a) x(squared)+7x+10=0 Stephen La Rocque lui répond. 





how do I factor 45  5x^2 
20090531 

tracey pose la question : how do I factor 45  5x^2 Penny Nom lui répond. 





Comparing positive and negative fractions 
20090324 

Christyrose pose la question : Hello. I am a sixth grade math student and i need help on how to compare negative and positive fractions.
Here is is:
3/4 2/3 7/10 5/6
I'm not sure how to do the negative parts because i was absent for a couple days. Thank you!
Christyrose Penny Nom lui répond. 





How many ball bearings can you make from a cone? 
20090314 

Vatsal pose la question : there is a sum in my maths book which states the following:
how many ball bearings of diameter 2.5 cm. can you get by
melting a solid metalic cone of radi. 20cm and a Hight of 5 meters?
how do i do this please tell me even the minute things like cancellatoins and where to
use = , ; or any such thing because Im a bit weak in maths Harley Weston lui répond. 





The area of a 5sided lot 
20090302 

Linda pose la question : I have a problem I'm hoping you can provide some help with. When I check the property information for our home on our District of North Vancouver website, it shows that our property is supposed to be 1146.99 Square Metres. Yet another property which has identical measurements is listed as having 1173.7 Square Metres. I would like to figure out who is correct. Harley Weston lui répond. 





Find the resultant of this displacement pair 
20090222 

katydidit pose la question : Find the resultant of this displacement pair:
500 miles at 75 degrees east of north and
1500 miles at 20 degrees west of south.
How do I graph this and how do I solve this problem? Penny Nom lui répond. 





7 golfers playing 4 days of golf 
20090130 

Trish pose la question : I have 7 golfers and we are playing 4 days of golf. I would like to do pairings so that everyone gets to play with each other at least one time. Can you help with this? Not a math whiz here and looking for help. Thank you. Victoria West lui répond. 





A cake must be divided evenly 
20090120 

kelen pose la question : a 10 inch by 10 inch square cake must be divided evenly among 5 people. the top
and all four sides of the cake are frosted. each person must receive the same
amount of cake and the same amount of frosting. there must be no cake left over.
how can this be done? Robert Dawson lui répond. 





Ordering fractions 
20090114 

Shea pose la question : I am a special education teacher, who is trying to to show my students how to order fractions. I found your response to this questions while looking for information. I need a visual to explain to my students and myself on how and why you multiply the fractions together. Harley Weston lui répond. 





Pouring angles for a crucible 
20081220 

Richard pose la question : I am trying to work at pouring angles and volume left in during pouring a crucible, The crucible is cylindrical and flat bottomed.
I know the diameter, radius and volume of the crucibles. and the volume of liquid going into it.
So lets say the crucible is only half full firstly I need to work out the angle just before its going to pour. ( I can work this out as long as there is a certain volume of liquid if its not enough I cant do it)
Now the problem I also need to work out how much I should tilt the crucible to allow a certain amount out and be able to do this untill the volume reaches 0 at 90' turn. This is where I am stuck.
The reason for needing to be able to work this out is so i can develop a constant flow for example 10Kg of metal per second.
Thank you very much for you time Harley Weston lui répond. 





Three circular rings 
20081218 

seema pose la question : three circular rings of equal radii of 1cm each are touching each other.
a string runs all around the set of rings very tightly. what is the minimum length
of string required to bind all the three rings ? Robert Dawson lui répond. 





Wall covering 
20081210 

Jeanie pose la question : I need to convert 14 LY of wallcovering (54" wide) to square feet. Can you please help me? Penny Nom lui répond. 





Six golfers 
20081125 

Joe pose la question : I have a group of 6 golfers wanting to play 3 or 4 rounds but with different players each day if possible. We know we cannot make it happen without some playing with the same person. Can you provide some pairings for this? Victoria West lui répond. 





Factor 9x^2 + 6x + 4 
20081121 

Jonah pose la question : how can i solve this by factoring: 9x^2 + 6x + 4 Harley Weston lui répond. 





How do I compare fractions and decimals? 
20081118 

Alexis pose la question : How do I compare fractions and decimals ? Penny Nom lui répond. 





Real and imaginary zeros 
20081112 

David pose la question : Find all the real and imaginary zeros for each polynomial. Factor each polynomial. Leave factors with imaginary zeros in quadratic form.
h(x)= x^5 +2x^4  10x^3 20x^2 +9x + 18 Harley Weston lui répond. 





Order the #s from least to greatest 
20081024 

morgan pose la question : order the #s from least to greatest
18 7/12, 18 2/3,
183/4, 18 1/3
Please help
Morgan Stephen La Rocque lui répond. 





Factor completely 
20081022 

Monica pose la question : I have to factor the following two items completely, but I am lost. I've tried factoring by substitution and grouping but they don't seem to work:
1. 5(w3z) 10(w3z)=
2. ab21+a3b7= Penny Nom lui répond. 





Putting fractions in order 
20080911 

kaby pose la question : whats the answer for this? put it from least to greatest: 1/4, 1/9, 1/8 Penny Nom lui répond. 





How far was the ship from the tower at 1:30 p.m? 
20080907 

sam pose la question : A passenger on a ship sailing north at 5.0 mph noticed that at noon a radio tower on land was due east of the ship. At 1:30 p.m., the bearing of the tower from the ship was S35degreesE. How far was the ship from the tower at 1:30 p.m. Stephen La Rocque lui répond. 





What is the bearing to the ship from port? 
20080906 

Rita pose la question : A ship leaves the port of Miami with a bearing of S80degreesE and a speed of 15 knots. After 1 hour, the ship turns 90 degrees toward the south. After 2 hours, maintaining the same speed, what is the bearing to the ship from port? Penny Nom lui répond. 





Ordering fractions 
20080825 

Ghita pose la question : Order these distances from least to greatest
1/2 , 5/8 , 3/4
What is a quotient?
Ghita Penny Nom lui répond. 





Simplifying Algebraic Expressions 
20080822 

Jacky pose la question : x^2y^2+4x+4y Penny Nom lui répond. 





Factoring x^2 + 729 
20080819 

peter pose la question : hello I,am having trouble factorising a polynomial into polynomial factors
with real coefficients please can you help the polynomial is x^2+729 Harley Weston lui répond. 





A string around the world 
20080818 

Terry pose la question : I heard this on T.V. and was wondering if it was true. Place a string around
the world, you would need 25,000 miles of string. If you raised the string
off of the ground by 1 foot all the way around. How much more string
would you need? Penny Nom lui répond. 





(9x^24)/(3x^25x+2) * (9x^4  6x^3 +4x^2)/(27x^4+8x) 
20080429 

Jonathon pose la question : I don't remember how to solve an equation in the form of the following:
(9x^24)/(3x^25x+2) * (9x^4  6x^3 +4x^2)/(27x^4+8x) = Stephen La Rocque lui répond. 





Factor x^65x^3+25 
20080311 

jacob pose la question : how do you factor equations for algebra 2
x^65x^3+25 Harley Weston lui répond. 





The dimensions of a rectangle 
20080306 

Julie pose la question : Find the dimensions of a rectangle with an area of 400. Width x ft.
Length (2x7)ft. Stephen La Rocque and Penny Nom lui répond. 





A dog and a fire hydrant 
20080306 

Brittany pose la question : A bulldog is walking east along Main St. at a speed of 4 miles per hour. He wants to get to a fire hydrant on a parallel street. Initially, the bearing to the hydrant is south 62 degrees east. After 20 minutes, the bearing is south 41 degrees east. If the bulldog continues his walk, what is the closest he will be to the hydrant? Stephen La Rocque lui répond. 





5x^2  45 
20080211 

Tiana pose la question : factor:
5x^2  45 Stephen La Rocque lui répond. 





Factoring x^2 + 25 
20080104 

Geri pose la question : what does x squared plus twenty five factor out to? Penny Nom lui répond. 





Ball bearings in an oil can 
20071203 

Lisa pose la question : One hundred ball bearings with radius 5 mm are dropped into a cylindrical can, which is half full of oil.
The height of the cylinder is 20 cm and the radius is 8 cm.
By how much does the level of the oil rise? Stephen La Rocque lui répond. 





Ordering fractions 
20071123 

Joy pose la question : what are the orders of these fractions?
2/3, 1/2, 1/4, 2/10, 3/4, 1/3, 9/10, 2/2. Penny Nom lui répond. 





Three colouring the USA map 
20071115 

Hammed pose la question : Prove that if each of the 50 states in the USA is assigned one of the colors red, white, or blue, then some pair of adjacent states must have the same color. (If you think that Arizona and Colorado are adjacent, then you may not consider New Mexico and Utah to be adjacent, too. You can't have it both ways!) Victoria West lui répond. 





8^2+64^2 
20071112 

Daniel pose la question : I am having trouble factoring equations like 8^2+64^2, I just don't know
the correct steps to get the answer. Penny Nom lui répond. 





I need to order 3/11, 1/8, 2/9 from least to greatest 
20071019 

Andrew pose la question : I need to order 3/11, 1/8, 2/9 in least to greatest. Penny Nom lui répond. 





Factoring quadratics 
20071009 

Abbie pose la question : I have two problems same topic. I belive they cannot be factored but i want to make sure.
x^{2}+6x40
x^{2}20x+99 Penny Nom lui répond. 





Can you solve this by factoring? 10r^2  35r = 10 
20070812 

Aranxa pose la question : how do u solve this equation by factoring:
10r^2  35r = 10 Stephen La Rocque lui répond. 





The bearings of a ship's journey 
20070720 

sugar pose la question : A ship starts from point osail eastward for 6 hours. Then changes its course to N50E for 8 hours and then N62W for 10 hours until it reaches the point c. If the speed of the ship was imi/h, what is the bearing of the side oc? Harley Weston lui répond. 





What is the bearing from the port to the ship? 
20070718 

fhay pose la question : A ship leaves a port and sails for 4 hours on a course of 78 degrees at 18 knots. Then the ship changes its course to 168 degrees and sails for 6 hours at 16 knots. After 10 hours(a) what is the distance of the ship from a port and (b) what is the bearing from the port to the ship? Harley Weston lui répond. 





Simplifying a quartic rational expression using long division 
20070614 

Megan pose la question : x+2/12x^4+17x^3+0x^2+8x40= Stephen La Rocque and Penny Nom lui répond. 





Using FOIL for (2x  6)^2 
20070518 

TONI pose la question : I am having a problem finding examples of how to solve (2x6)^2. Stephen La Rocque lui répond. 





Ordering fractions 
20070508 

Mary pose la question : Can you place these in order? 1/8, 15/64, 15/16, 7/32 Stephen La Rocque lui répond. 





Edging surrounding a round pool 
20070503 

Carol pose la question : Hello,
I am new at this and very rusty on my math. I am getting a 24 Ft. round pool and would like to put 2ft width stone (small) edging around it. How much would I need to buy. I have to buy it by the yard (cubic yard) I am not looking for an exact, just an approx. even would be great.
Thanks
Carol Stephen La Rocque lui répond. 





Factoring by grouping 
20070413 

vincent pose la question : How would you factor
the number in ( ) are exponents
2b(3)+3a(3)+3ab(2)+2a(2)b =
and
4b4b(3)+a(2)b  4a  ab(4) = Haley Ess lui répond. 





How far from the port is the point where the ship turned? 
20070219 

Chris pose la question : I was confused on this problem. If a ship leaves port and travel due east. At a certain point it turns 65 degrees south of east and travels b=322 nautical miles to a point 461 nautical miles on a direct line from port. How far from the port is the point where the ship turned? Stephen La Rocque lui répond. 





Factoring polynomials 
20070214 

Joe pose la question : I am in the eighth grade, and we are learning the equivalent of Algebra 2. I have no ides how to factor (x2)(x^21)6x6 You help is most aprreciated. Thank you! Joe Stephen La Rocque lui répond. 





Comparing two fractions 
20070118 

Kayla pose la question : Why does eight over twelve compared to one half work when you use cross multiplication. Penny Nom lui répond. 





Probability and Lisa's rings 
20070115 

Spencer pose la question : lisa has 9 rings in her jewelry box. five are gold and 4 are silver. if she randomly select 3 rings to wear to a party, find each probability p(2 silver or 2 gold) Stephen La Rocque lui répond. 





Ordering farctions 
20070105 

Samantha pose la question : I am having trouble ordering these fractions: 2/15, 1/5, 3/5
And also would like to know what is $6.67 divided by 8 rounded to the hundredths place Penny Nom lui répond. 





Order the fractions from least to greatest 
20070104 

Justin pose la question : I am a sixth grader, and I am having trouble with the last question in my homework assisgnment. 1/6, 2/5, 3/7, 3/5! Stephen La Rocque and Penny Nom lui répond. 





Factoring m^49^n 
20061207 

Josh pose la question : I can not figure out how to completely factor m^49^n. Penny Nom lui répond. 





I have to design a lettering on corrugated plate 
20061129 

Tim pose la question : For a client of mine I have to design a lettering on corrugated plate. The lettering has to appear "normal" when viewed from the front (100%) I am so far now to consider the shape of the plate to be two halves of an oval/ellipse. What I would like to know is a way to calculate the percentage in which I have to "stretch" my design in order to let it appear "normal". Stephen La Rocque and Penny Nom lui répond. 





Bearings 
20061122 

Suzy pose la question : Mr. John wants to fly her airplane from point A to B, a distance of 450 miles. If B has a heading of 60 degrees from A, and there is a constant wind from the southeast blowing at 60 mph, find the speed and heading she should maintain in order to land at B in 90 minutes. Stephen La Rocque lui répond. 





How do I factor 10x^2 + 17x + 6? 
20061121 

Sheldon pose la question : How do I factor 10x^2 + 17x + 6? Penny Nom lui répond. 





Squaring numbers 
20061008 

Timothy pose la question : did anyone ever try to teach that the easiest way to find the next square in a group of numbers is to add the next odd number in the sequence. for example: 1 squared is 1, 2 squared is 4,difference of 3.the next odd number is 5 so the next square would be 4 +5 or 9 Paul Betts and Penny Nom lui répond. 





How do i factor x^3  6x^2 + 8x 
20060910 

Lauren pose la question :
how do i factor
x^{3}  6x^{2} + 8x
Stephen La Rocque lui répond. 





An aircraft going from city A to city B 
20060510 

Preston pose la question : An aircraft going from city A to city B on a bearing of S69 degrees East is traveling at a speed of 430 mph. The wind is blowing out of the north to south at a speed of 25 mph. Find the ground speed and the plane's true bearing. Stephen La Rocque lui répond. 





Comparing Fractions 
20060324 

J. pose la question : how can you compare fractions with like numerators and UNlike denominators, like 2/3 and 2/5, without renaming or using fraction strips? Stephen La Rocque and Penny Nom lui répond. 





Factor 
20060308 

Brad pose la question : Factor:
x^{3} + 64m^{3} and 125p^{3}  q^{6} Penny Nom lui répond. 





Find the ground speed and the planes true heading. 
20060205 

Jimmie pose la question : An aircraft going from city A to city B on a bearing of S69E (degrees) is traveling at a speed of 430 mph. The wind is blowing out of the north to south at a speed of 25 mph. Find the ground speed and the planes true heading. Penny Nom lui répond. 





5x^2  27x  18 
20060113 

Katy pose la question : How would you factor 5x^{2}  27x  18? Penny Nom lui répond. 





3x^4  81 
20060102 

Julio pose la question : How can I factor the following?:
3x^{4}  81 Penny Nom lui répond. 





Factoring quartics 
20051113 

Kyle pose la question : How do I factor y^{4} + y^{2} +1?? I think the answer is (y^{2} + y + 1)(y^{2}  y + 1), but I'm not sure how to get that... Chris Fisher lui répond. 





Factoring 
20051030 

A student pose la question : Factor 18x^{3} y^{3} + 12xy^{2} Penny Nom lui répond. 





A quadratic 
20050906 

Ginger pose la question : I took a pre alg test today. There was a question on it that I am not sure and is bothering me. Can you tell me the answer?
x square + 13 + 14
Factor this Penny Nom lui répond. 





Which number is greater? 
20050818 

Dante pose la question : Which number is greater: 888....88 X 333...33 or 444.......44 x 666........67 (each of the numbers has 1989 digits)? Claude Tardif lui répond. 





Factoring 
20050520 

Abraham pose la question : Can you please explain to me how to factor completely the following problem:
(sqrt(x+1))((x^{2}+2x+1)^{( 7/4)}). Penny Nom lui répond. 





16x^2+20x12x15 
20050503 

Tanya pose la question : how they got (4x+5)(4x5) from
16x^{2}+20x12x15=4x(4x+5)3(4x+5)=(4x+5)(4x5) Penny Nom lui répond. 





"a" cubed minus "b" cubed 
20041202 

Denise pose la question : "a"cubed minus "b"cubed equal (ab) times
("a"squared plus "ab" plus "b"squared)?
I know this is a formula, but why is it true? Penny lui répond. 





Solving quadratics 
20041120 

Aaron pose la question : Can you solve the following equation (quote the value of x,y and t to 3 sig figs)
((i have changed figures so that i can work through my own example))
x^{2} + x  6 = 0
5y^{2} +19y = 3
10cos2 t + 3cos t = 4 Penny Nom lui répond. 





Factoring 
20041109 

Rise pose la question : Q1: a^{2} + 5a + 6
I didn't really understand the purpose of the teacher's steps, but was able to get my daughter to find factors of 6 and then add them together to find which resulted in the sum of 5.
Unfortunately, this problemsolving technique did not help us to solve for the more complex problems as follows:
Q2: 9a^{3}  24a^{2} + 12a Penny Nom lui répond. 





Multiplying two algebraic fractions 
20041031 

A parent pose la question : Multiply:
x+2 x²4
 x 
x2 x²+x2 Harley Weston lui répond. 





X is due north of Y ... 
20040811 

A student pose la question : X is due north of Y and 2km distant. Z is due east of Y and has a bearing of S35°12'E from X. How far, to the nearest metre, is Z from X? Penny Nom lui répond. 





sin^2x5sinx3=0 
20040802 

Kerri pose la question : hey my name is kerri i'm a college students and i was wondering if you could help in with this problems
sin^2x5sinx3=0 Penny Nom lui répond. 





Factoring 
20040728 

Nicole pose la question : Can 4x2 + 19x + 12 be factored? i have tried but i cannot figure it out. Is there a way to find out if it cannot be factored before i try to work out the problem? Penny Nom lui répond. 





Factoring 
20040719 

A student pose la question : Factor completely:
3x3  24y3
54x6 + 16y3
16xy  4x  4y  1
0.09x2  0.16y2 Penny Nom lui répond. 





Solving some quadratic equations 
20040715 

A student pose la question : Could you please solve the following for x
x^{2}+6=5x
x^{2}+16=8x
2x+21=3x^{2} Penny Nom lui répond. 





Factoring integers 
20040702 

A student pose la question : After looking at all the info I could get about NFS, I still have some questions that are unsolved:
First of all: If someone found an algorithm that has a worst case running time of N*Log(N) to factor an integer n into his divisors, would it be quicker or slower then the number field sieve algorithm?
secondly, what exactly is the time complexity of the Number Field Sieve algorithm, if I would factor an integer n? Claude Tardif lui répond. 





Finding bearings 
20040524 

James pose la question : This question is about finding bearings. A boat race starts from point A, goes North to Point B, a distance of 1000 meters. The course is triangular. The bearing from point B to point C is South 70degrees West. The distance from Point B to point C is 1500 meters. Find the course bearing from C to A.
Penny Nom lui répond. 





Factoring 
20040427 

Bipin pose la question : FACTORISE:
a to the power of 6 + b to the power of 6 Penny Nom lui répond. 





Some factoring problems 
20040415 

KJ pose la question : Factor these:
x^{3}+125 > (x+5)^{3}
8x^{3}27 > (?)
x^{2}+36 > (x+6)^{2}
x^{4}5x^{2}+4 > (?) Penny Nom lui répond. 





Factoring x^2 + 5x + 4 
20040314 

Keenan pose la question : how do I factor x^+5X+4? Penny Nom lui répond. 





Pairing boys and girls 
20040201 

Terri pose la question : Suppose 7 boys and 7 girls are assigned to work in pairs of one boy and one girl. Explain what equation can be used and how you would use a simpler problem to solve these types of questions. Penny Nom lui répond. 





A game with some strings 
20040122 

Trudy pose la question : A boy holds 6 pieces of strings in his hands with the ends protruding above and below. The top ends are tied together in pairs and then the lower ends are tied together in pairs. What is the probabilty that the pieces of string are all joined in one loop?
What is the probability of obtaining two loops?
Can you generalise this to solve the problem for 2n blades of grass? Andrei Volodin and Penny Nom lui répond. 





Factoring expressions 
20040103 

A student pose la question :
I'm having trouble factoring expressions that aren't monic. I can do things like
x29x+8, but problems like 12x2+5x3 have me stumped.
I also have a question about factoring out common factors. In a problem like
x218x+81, wouldn't you divide by 9? But what happens to the x2, is it x2/9? Penny Nom lui répond. 





Factoring in 
20031216 

Priscilla pose la question : How can you use solving by factoring in real life applications? Harley Weston lui répond. 





A rock on a string 
20031026 

A student pose la question : a rock on a 4' string is rotated at 80 rpm. what is the linear speed in feet per second? in miles per hour? Penny Nom lui répond. 





Two trig problems 
20030610 

Bett pose la question :
I have this ongoing trouble with trig and solving triangles with laws of cosines and sines!! For example if it asks to solve triangle FGH, given angle G=102.7 , side f=14.2, and h=18.6. Now do I use law of cosines because I don't have the measure of an angle and length of the opposite side??I don't know where to go from here,I am totally confused!!! I also have a problem with this word problem I have been doing. It asks: An airplane flies 847.5 km at a bearing of 237.3 degrees. How far south and west fo its original position is it? Huh? Please help! Penny Nom lui répond. 





Factoring 
20030204 

Marcin pose la question : I am having a really hard time with the factor theorem. Can you please help me with the following? (a'3 means a to the exponent 3)
a)8a'3+64b'3c'6 b)8x'412x'344x'2+24x c)x'421x'2100
Penny Nom lui répond. 





Factoring a trinomial 
20030126 

A student pose la question : how do you factor: Xsquared + 8x + 12 Penny Nom lui répond. 





Factoring 
20021211 

Larry pose la question : Question:
how do u factor trinonmials
EX: X^{ 3} + Y^{ 3}
X^{ 3}  8Y^{ 3}
8X^{ 2}  72
64A^{ 3}  125B^{ 6} Penny Nom lui répond. 





Factoring a cubic 
20021205 

Dorota pose la question : I got a problem with factorise the expression 2x^{3}+11x^{2}5x50. Penny Nom lui répond. 





A schedule for a fantasy football league 
20020901 

Steve pose la question : i am in a ten(10) team league, split evenly into two five team divisions. we play a thirteen(13) game schedule and would like to play each team in your own division twice, and each team in the other division once. according to my rudimentary mathematics that equals 13 games. a good schedule should look somthing like this: team 15 = division 1 team 610 = division 2 team 1 should play teams 25 twice and teams 610 once. Claude Tardif lui répond. 





A popular television game show 
20020519 

Amrita pose la question : On a popular television game show, contestant must first answer a question by placing 4 given events in ascending or desending order in the quickest time. (a) if a contestant does not know how any of the events should be arranged, how many different ways could the question be answered?
Answer: 4!= 24 (b)a contestant has to arrange the events that correspond to A, B, C, and D. one contestant is positive that event D follows directly after avent B, but does not know about the other s. how many different ways could this contestant arrange the letters A, B, C, and D, list the possibility
Answer: which I didn't get Penny Nom lui répond. 





Ratios 
20020417 

A student pose la question :
 Medication is givin at 1cc. per 20 pounds of body weight. A dog weighs 16 pounds how many ccs. of medication does the dog get?
 Dr. Lee wants you to prepare 1000 ml. of a 10% dextrose solution in lactaed ringers for diuresis or a patient you have a 1 L bag of lactated ringers and 500 ml of 50% dextrose for injection. How would you prpare the solution?
Penny Nom lui répond. 





24x^4 + 3x 
20020318 

gary pose la question : 24x^{ 4} + 3x Penny Nom lui répond. 





2/3 vs 3/4 
20020102 

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. 





Numbering pages 
20011115 

Lucy pose la question : A printer uses 1008 digits to number the pages of a book. How many pages are there in the book? Penny Nom lui répond. 





(a+b) squared and a squared plus b squared 
20011114 

Kristen pose la question :
(a+b)^{2} = a^{2} + b^{2} Is this true for all whole numbers, and why? Penny Nom lui répond. 





Squaring the circle 
20011023 

Margaret pose la question : I have the following question that I cannot answer on my own (I don't know where to begin): Is it possible construct a square whose area will equal the area of a given circle? Please Explain why or why not. Penny Nom lui répond. 





4x(2x1)+(2x1)^{2} 
20010917 

Nick pose la question : how do u solve 4x(2x1)+(2x1)^{2} Penny Nom lui répond. 





Comparing means and standard deviations 
20010711 

Shelly pose la question : Is there a way to compare means and standard deviations that come from different size samples? Is there an equation that can normalize sample size? Andrei Volodin lui répond. 





A factoring problem 
20010614 

A student pose la question : What is the factoring of x squared 7+6 equal Penny Nom lui répond. 





Securing a plank in four dimensions 
20010606 

Becca pose la question : If it takes two nails to secure a plank from rotating on a wall in the third spatial dimension, how many nails would it take if you were attempting to secure the board from rotating in the fourth spatial dimension? Walter Whiteley lui répond. 





25 y^2 + 20 y z  4 z^2 
20010515 

Kimmy pose la question : i don't know how to factor the trinomial 25y^{2} + 20yz  4z^{2}. I can get it, but i get messed up on getting the minus 4 at the end. all i get is a plus 4. Can it even be factored. Penny Nom lui répond. 





Factoring 
20010322 

Kaleena pose la question : Factor this equation: 5x^{7}10x^{5}+4x^{3}8x Harley Weston lui répond. 





Difference of squares 
20010220 

Janna pose la question : Hi! I was just wondering how you would factor x^{2}  9y^{2}. Harley Weston lui répond. 





Factoring 
20010124 

Danielle pose la question : 4(x+1)^{2}+y(x+1) Penny Nom lui répond. 





Factoring a trinomial 
20010124 

Kyle pose la question : I am an eighth grade student.I can not figure out the following problem. 4x^{2} + 2x  20 Leeanne Boehm lui répond. 





Factoring (uv)^{3}+vu 
20001215 

A parent pose la question : I am a middle school teacher and a parent. I am snowed in and trying to help my 9th grader get ready for 9 weeks exams. I have tried to factor this problem to no avail. (uv)^3+vu. I have the answer but I need to know how it is done. Penny Nom lui répond. 





Vector Problem 
20001127 

Ben pose la question : An aircraft can fly 260km/h in still air and the wind is blowing at 70km/h towards the West. In what direction should the aircraft head so that its actual velocity is on a bearing of 030 degrees? Harley Weston lui répond. 





Factoring a cubic 
20001031 

A student pose la question : Factor Completely 18p^{3}  51p^{2}  135p Paul Betts and Penny Nom lui répond. 





Factoring 
20000912 

Melissa pose la question : I would like you to help me factor (x^{ 6}y^{ 6}) & (a+b)^{2}+3(a+b)4 Penny Nom lui répond. 





Roots of x^2 + 22 x + 112 
20000907 

Brian R. pose la question : I need to find the root of the quadratic equation of a square. The problem is x^{2} + 22x + 112 = 0. Penny Nom lui répond. 





Covering 1, 1/2, 1/3,... 
20000822 

Wallace pose la question : Consider the points 1, 1/2, 1/3, ... on the real number line. You are given five small bars, all of length p, which are to be placed on the number line such that all points will be covered. What is the minimum value of p that will allow you to do this? Penny Nom lui répond. 





Factoring trinomials that are squared 
20000417 

A student pose la question : I have a question that I really need an answer to. I need help with factoring trinomials that are squared. Penny Nom lui répond. 





Factoring, primes, GCF and LCM 
20000227 

Ruth Kroek pose la question : My son is in grade seven, he has to do a Factoring Booklet the areas covered are:  Prime #'s
 Composite #'s
 Rainbow Factoring
 Finding Multiples (consecutive multiples)
 Finding GCF of 23 numbers uning Rainbow factoring
 Finding LCM of 2 numbers using consecutive multiples
 prime factor trees
 prime factor ladders
 finding GCF of 2 numbers using Prime number Method
Although his text 'Math Power' gives some information, we are at a loss .. Penny Nom lui répond. 





Factoring by graphing 
20000111 

Dylan Kirkwood pose la question : How can you factor a quadratic equation by graphing it? Penny Nom lui répond. 





Ordering fractions 
20000105 

A seventh grader pose la question : I am a middle school student (7th grade) and I was wondering if you could help me with ordering fractions from least to greatest the fractions are 31/12, 2 5/6 and 2 3/4. Walter Whiteley lui répond. 





Factoring ^6 
20000103 

Athena pose la question :
my name is Athena and I have a question on factoring: how would you figure this out: (x^{6}y^{6}) and (x^{6}+y^{6}) Penny Nom lui répond. 





Common factors 
19991006 

Tommygirl98 pose la question : Ok I have a question about common factoring I'm not to sure if you could help me but it's worth a try here it goes. Ok I have a test on Friday and i'm having trouble understanding how to do it here's an example, Factor, 10 + 2b how do you do it and what do they mean by factor? Penny Nom lui répond. 





Repeating decimals 
19990918 

Kavoos Bybordi pose la question : I dont know how to change a reccuring decimal to a fraction please could you tell me the method. Penny Nom lui répond. 





Using Factoring in Problem Solving 
19990909 

Lori pose la question : I have a problem with a problem. The Problem is....The sum of the squares of two consecutive positive even integers is 340. Find the integers. Penny Nom lui répond. 





A difference of squares problem. 
19990724 

Michael and Stephanie Bixler pose la question : If you have the equation x= n^{2}  m^{2} (ie 40= 7^{2}3^{2}= 499) x must = a positive number 1) which squared numbers work as n and m 2) how does it work 3) if my teacher gave me the number for x; how could I figure out this problem Harley Weston lui répond. 





Factoring 
19990330 

Maggie Stephens pose la question : I don't know anything about factoring would you plese help me. 3x^{4}  48 54x^{6} + 16y^{3} 1258x^{3} 12x^{2}  36x + 27 9  81x^{2} a^{3} + b^{3}c^{3} I would greatly appreciate any help you can give me thanks. Jack LeSage lui répond. 





Factoring polynomials 
19990329 

Karen pose la question : I have been unable to factorise a polynomial equation and was wondering if you could please help. It is level (1012) maths. The polynomial is x^{3} + x^{2}  24x + 36 I have tried a few factorisation methods such as foctorisation by grouping but it won't work this polynomial. Please help. Jeff Walters and Jack LeSage lui répond. 





Factoring 
19990308 

L. Sivad pose la question : Question: m^{2}+6m+9n^{2} Penny Nom lui répond. 





Difference of squares 
19980623 

Kristen Smelsky pose la question : Solve the following using a difference of squares: 4x(squared) minus 4xy plus y(squared) minus m(squared) plus 2m minus 1 Penny Nom lui répond. 





The twodigit numbers from 1099 
19980121 

Alexis Riddle pose la question : My name is Alexis. I'm a student in 8th grade and I'm taking Algebra I Honors. My question is: In a string of numbers, two adjacent digits are considered as a twodigit number. For instance, the string 11012 contains the numbers 10, 11, and 12. What is the number of digits in the smallest string that contains all of the twodigit numbers from 1099? Please help and thank you for any assistance you can give me. Penny Nom lui répond. 

