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Strings of letters 2022-04-25
Javar pose la question :
How many different combinations can I make with A 12 selection list but only using A&B

Example:

A,B,A,B,A,B,A,B,A,B,A,B
A,B,B,A,A,B,B,A,A,B,B,A
B,B,A,A,B,A,B,A,B,A,A,B

penny Nom lui répond.
Bearing and distance 2021-02-22
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,calculate|XY| solve and draw the diagram please
Harley Weston lui répond.
Factoring an interest formula 2020-09-29
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 2020-08-30
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 2020-08-28
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 2020-06-26
Judy pose la question :
I wrote previously and need more help. I need to generate a list of 4 digit. Numbers using 0-9 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 2019-12-10
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 2019-11-05
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 and|PR|=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 2019-09-22
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 2019-03-15
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+3n-270 2019-02-11
Ashley pose la question :
n^2+3n-270
Penny Nom lui répond.
Numbering pages 2019-01-20
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 2018-11-25
Mae pose la question :
order these from least to greatest:

19/6, 3 5/14, 83/21

Penny Nom lui répond.
Taking 6 pills 2018-05-29
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 on-line 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 2018-05-18
angela pose la question :
math fraction greater to the least

1\5 ,1\2 or 1\4

Penny Nom lui répond.
Factoring a quadratic 2018-04-02
Billy pose la question :
I need help factoring the following question: 4x(squared) -10x +16.
Penny Nom lui répond.
Which movie lasts longer? 2018-03-14
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? 2017-09-17
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 2017-05-25
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^2-19x-14=0 for x 2017-03-15
nick pose la question :
I'm an 8th grader and am quite confused with this equation: 3x^2-19x-14=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 2017-02-20
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 2016-12-22
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 2016-12-04
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 2016-08-11
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 2016-04-26
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 2015-12-28
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? 2015-11-06
Natalie pose la question :
Is 22/7 bigger or smaller than 3.14?
Harley Weston lui répond.
Factoring a trinomial 2015-11-02
Eric pose la question :
2v(squared) +11v +5
Penny Nom lui répond.
Ordering fractions 2015-03-27
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 2015-02-14
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 2-digit number and a 3-digit number 2015-02-06
Nathaniel pose la question :
The product of a 2-digit number and a 3-digit number is about 50 000 what are the products
Penny Nom lui répond.
2x^2-2x+1=4x+1 2015-02-06
Caitlyn pose la question :
2x^2-2x+1=4x+1
Penny Nom lui répond.
Comparing fractions 2015-02-02
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 2014-11-20
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 2014-11-18
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 2014-10-05
Gina pose la question :
3x^2+6x+3
Penny Nom lui répond.
Sharing in the ratio of of 2:3:5 2014-07-11
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 2014-07-02
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 2014-06-26
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 2014-06-15
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/Permutation-Generator.html, and http://textmechanic.com/Combination-Generator.html , but am not sure how to use them for my specific case. Thanks.
Penny Nom lui répond.
Golf for 8 playing 7 rounds 2014-04-03
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 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.
A cable around the Earth 2014-03-13
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 2014-01-09
Nathan pose la question :
Radio direction finders set up two points A and B, which are 2.5 miles apart on an east-west 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^2-81z^2 be factored? 2013-12-08
Rosa pose la question :
Can 100r^2-81z^2 be factored?
Penny Nom lui répond.
Factor 2013-12-01
Rosa pose la question :
How do you factor 9x^2 - 12y^2?
Penny Nom lui répond.
A string wrapped around three circles 2013-10-19
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 . Thank-you , Jim

Penny Nom lui répond.
Factor strings 2013-10-14
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 2013-09-18
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 2013-09-11
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 2013-05-18
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 2013-04-28
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 2013-04-09
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 2013-02-27
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 2013-02-01
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 2013-01-25
Taylor pose la question :
Hi, I am having trouble factoring x^6-64. Could you help me?
Penny Nom lui répond.
Mod versus Rem in Turing 2013-01-01
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^2-5a+1)(8a^2-6a+1)(12a^2-7a+1) 2012-11-16
bailey pose la question :
Factorise f(a)=(6a^2-5a+1)(8a^2-6a+1)(12a^2-7a+1) thus find [f(a)]^1/2
Penny Nom lui répond.
My compass was off by 8 degrees 2012-10-30
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 2012-09-10
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 2012-08-22
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 2012-07-19
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 2012-07-16
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 2012-04-26
Amanda pose la question :
y=x^2-9x
Penny Nom lui répond.
Factoring a quadratic 2012-03-13
Makell pose la question :
X^2 + 32x + 220 = 0
Penny Nom lui répond.
Wallpapering a room 2012-02-08
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 2011-11-16
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 2011-11-16
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 2011-10-16
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 2011-08-17
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 2011-03-20
Yasmine pose la question :
what's the answer, greatest to least

3/8 1/4 2/3

Penny Nom lui répond.
Factor 10x^2+17x-6 2011-03-03
Jeff pose la question :
Factor 10x^2+17x-6 with steps and explanation.
Penny Nom lui répond.
Ordering fractions 2011-03-01
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 2011-02-15
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^2-a^2/xy)(xy/x+a)

Penny Nom lui répond.
Ordering fractions 2010-12-14
serita pose la question :
1/2,2/4,4/8 how do you do least to greatest
Penny Nom lui répond.
Ordering mixed numbers 2010-11-23
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 2010-11-14
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 2010-09-29
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 2010-09-22
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 2010-08-24
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 2010-06-14
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 2010-05-18
Austin pose la question :
Z^4-10z^2=-9
Penny Nom lui répond.
How many 20"X20" tiles do I need to cover 90 sq. ft? 2010-03-23
Karen pose la question :
How many 20"X20" tiles do I need to cover 90 sq. ft.
Penny Nom lui répond.
Ordering fractions 2010-02-26
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 2010-02-26
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 2010-01-08
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+28bc-3ad-7bd and it gets tougher from there like 7a(squared)-14ab+7b(squared) any help is greatly appreciated

Stephen La Rocque lui répond.
Factoring 2009-11-19
danyelle pose la question :
81x^2+36x+4

factoring i dont understand it at all

Robert Dawson lui répond.
-4 squared and (-4) squared 2009-09-29
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 2009-09-28
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 2009-09-19
tattiana pose la question :
how do you order these numbers from greatest to least .625,.75,.20, and .5
Penny Nom lui répond.
Factoring 2009-08-23
Bj pose la question :
Solve for x: 5x^2 - 35x = 0
Stephen La Rocque lui répond.
Factoring a quadratic 2009-06-16
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 2009-05-31
tracey pose la question :
how do I factor 45 - 5x^2
Penny Nom lui répond.
Comparing positive and negative fractions 2009-03-24
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? 2009-03-14
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 5-sided lot 2009-03-02
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 2009-02-22
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 2009-01-30
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 2009-01-20
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 2009-01-14
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 2008-12-20
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 2008-12-18
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 2008-12-10
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 2008-11-25
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 2008-11-21
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? 2008-11-18
Alexis pose la question :
How do I compare fractions and decimals ?
Penny Nom lui répond.
Real and imaginary zeros 2008-11-12
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 2008-10-24
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 2008-10-22
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(w-3z) -10(w-3z)=

2. ab-21+a3-b7=

Penny Nom lui répond.
Putting fractions in order 2008-09-11
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? 2008-09-07
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? 2008-09-06
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 2008-08-25
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 2008-08-22
Jacky pose la question :
x^2-y^2+4x+4y
Penny Nom lui répond.
Factoring x^2 + 729 2008-08-19
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 2008-08-18
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^2-4)/(3x^2-5x+2) * (9x^4 - 6x^3 +4x^2)/(27x^4+8x) 2008-04-29
Jonathon pose la question :
I don't remember how to solve an equation in the form of the following:

(9x^2-4)/(3x^2-5x+2) * (9x^4 - 6x^3 +4x^2)/(27x^4+8x) =

Stephen La Rocque lui répond.
Factor x^6-5x^3+25 2008-03-11
jacob pose la question :
how do you factor equations for algebra 2
x^6-5x^3+25

Harley Weston lui répond.
The dimensions of a rectangle 2008-03-06
Julie pose la question :
Find the dimensions of a rectangle with an area of 400. Width x ft. Length (2x-7)ft.
Stephen La Rocque and Penny Nom lui répond.
A dog and a fire hydrant 2008-03-06
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 2008-02-11
Tiana pose la question :
factor: 5x^2 - 45
Stephen La Rocque lui répond.
Factoring x^2 + 25 2008-01-04
Geri pose la question :
what does x squared plus twenty five factor out to?
Penny Nom lui répond.
Ball bearings in an oil can 2007-12-03
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 2007-11-23
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 2007-11-15
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 2007-11-12
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 2007-10-19
Andrew pose la question :
I need to order 3/11, 1/8, 2/9 in least to greatest.
Penny Nom lui répond.
Factoring quadratics 2007-10-09
Abbie pose la question :
I have two problems same topic. I belive they cannot be factored but i want to make sure.
x2+6x-40
x2-20x+99

Penny Nom lui répond.
Can you solve this by factoring? 10r^2 - 35r = 10 2007-08-12
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 2007-07-20
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? 2007-07-18
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 2007-06-14
Megan pose la question :
x+2/12x^4+17x^3+0x^2+8x-40=
Stephen La Rocque and Penny Nom lui répond.
Using FOIL for (2x - 6)^2 2007-05-18
TONI pose la question :
I am having a problem finding examples of how to solve (2x-6)^2.
Stephen La Rocque lui répond.
Ordering fractions 2007-05-08
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 2007-05-03
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 2007-04-13
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? 2007-02-19
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 2007-02-14
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 (x-2)(x^2-1)-6x-6 You help is most aprreciated. Thank you! Joe
Stephen La Rocque lui répond.
Comparing two fractions 2007-01-18
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 2007-01-15
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 2007-01-05
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 2007-01-04
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^4-9^n 2006-12-07
Josh pose la question :
I can not figure out how to completely factor m^4-9^n.
Penny Nom lui répond.
I have to design a lettering on corrugated plate 2006-11-29
Tim pose la question :
For a client of mine I have to design a lettering on corrugated plate. The lettering has to appear "normal" when viewed from the front (100%) I am so far now to consider the shape of the plate to be two halves of an oval/ellipse. What I would like to know is a way to calculate the percentage in which I have to "stretch" my design in order to let it appear "normal".
Stephen La Rocque and Penny Nom lui répond.
Bearings 2006-11-22
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? 2006-11-21
Sheldon pose la question :
How do I factor 10x^2 + 17x + 6?
Penny Nom lui répond.
Squaring numbers 2006-10-08
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 2006-09-10
Lauren pose la question :

how do i factor

x3 - 6x2 + 8x


Stephen La Rocque lui répond.
An aircraft going from city A to city B 2006-05-10
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 2006-03-24
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 2006-03-08
Brad pose la question :
Factor:
x3 + 64m3 and 125p3 - q6

Penny Nom lui répond.
Find the ground speed and the planes true heading. 2006-02-05
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 2006-01-13
Katy pose la question :
How would you factor 5x2 - 27x - 18?
Penny Nom lui répond.
3x^4 - 81 2006-01-02
Julio pose la question :
How can I factor the following?:

3x4 - 81

Penny Nom lui répond.
Factoring quartics 2005-11-13
Kyle pose la question :
How do I factor y4 + y2 +1?? I think the answer is (y2 + y + 1)(y2 - y + 1), but I'm not sure how to get that...
Chris Fisher lui répond.
Factoring 2005-10-30
A student pose la question :
Factor 18x3 y3 + 12xy2
Penny Nom lui répond.
A quadratic 2005-09-06
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? 2005-08-18
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 2005-05-20
Abraham pose la question :
Can you please explain to me how to factor completely the following problem:
(sqrt(x+1))-((x2+2x+1)( -7/4)).

Penny Nom lui répond.
16x^2+20x-12x-15 2005-05-03
Tanya pose la question :
how they got (4x+5)(4x-5) from
16x2+20x-12x-15=4x(4x+5)-3(4x+5)=(4x+5)(4x-5)

Penny Nom lui répond.
"a" cubed minus "b" cubed 2004-12-02
Denise pose la question :
"a"cubed minus "b"cubed equal (a-b) times
("a"squared plus "ab" plus "b"squared)?

I know this is a formula, but why is it true?

Penny lui répond.
Solving quadratics 2004-11-20
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))

x2 + x - 6 = 0

5y2 +19y = 3 10cos2 t + 3cos t = 4

Penny Nom lui répond.
Factoring 2004-11-09
Rise pose la question :
Q1: a2 + 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 problem-solving technique did not help us to solve for the more complex problems as follows:

Q2: 9a3 - 24a2 + 12a

Penny Nom lui répond.
Multiplying two algebraic fractions 2004-10-31
A parent pose la question :
Multiply:

x+2 x˛-4
----- x -------
x-2 x˛+x-2


Harley Weston lui répond.
X is due north of Y ... 2004-08-11
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^2x-5sinx-3=0 2004-08-02
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^2x-5sinx-3=0

Penny Nom lui répond.
Factoring 2004-07-28
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 2004-07-19
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 2004-07-15
A student pose la question :
Could you please solve the following for x

x2+6=5x
x2+16=8x
2x+21=3x2

Penny Nom lui répond.
Factoring integers 2004-07-02
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 2004-05-24
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 2004-04-27
Bipin pose la question :
FACTORISE:

a to the power of 6 + b to the power of 6

Penny Nom lui répond.
Some factoring problems 2004-04-15
KJ pose la question :

Factor these:
x3+125 -----> (x+5)3
8x3-27 -----> (?)
x2+36 -----> (x+6)2
x4-5x2+4 --> (?)


Penny Nom lui répond.
Factoring x^2 + 5x + 4 2004-03-14
Keenan pose la question :
how do I factor x^+5X+4?
Penny Nom lui répond.
Pairing boys and girls 2004-02-01
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 2004-01-22
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 2004-01-03
A student pose la question :

I'm having trouble factoring expressions that aren't monic. I can do things like x2-9x+8, but problems like 12x2+5x-3 have me stumped.

I also have a question about factoring out common factors. In a problem like x2-18x+81, wouldn't you divide by 9? But what happens to the x2, is it x2/9?
Penny Nom lui répond.

Factoring in 2003-12-16
Priscilla pose la question :
How can you use solving by factoring in real life applications?
Harley Weston lui répond.
A rock on a string 2003-10-26
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 2003-06-10
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 2003-02-04
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'4-12x'3-44x'2+24x
c)x'4-21x'2-100

Penny Nom lui répond.
Factoring a trinomial 2003-01-26
A student pose la question :
how do you factor: Xsquared + 8x + 12
Penny Nom lui répond.
Factoring 2002-12-11
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 2002-12-05
Dorota pose la question :
I got a problem with factorise the expression
2x3+11x2-5x-50.

Penny Nom lui répond.
A schedule for a fantasy football league 2002-09-01
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 1-5 = division 1 team 6-10 = division 2 team 1 should play teams 2-5 twice and teams 6-10 once.
Claude Tardif lui répond.
A popular television game show 2002-05-19
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 2002-04-17
A student pose la question :
  1. 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?

  2. 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 2002-03-18
gary pose la question :
24x 4 + 3x
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:
  1. The first one is greater than the second one
  2. The first one is less than the second one, or
  3. 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 2001-11-15
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 2001-11-14
Kristen pose la question :

(a+b)2 = a2 + b2

Is this true for all whole numbers, and why?


Penny Nom lui répond.
Squaring the circle 2001-10-23
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(2x-1)+(2x-1)2 2001-09-17
Nick pose la question :
how do u solve 4x(2x-1)+(2x-1)2
Penny Nom lui répond.
Comparing means and standard deviations 2001-07-11
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 2001-06-14
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 2001-06-06
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 2001-05-15
Kimmy pose la question :
i don't know how to factor the trinomial 25y2 + 20yz - 4z2. 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 2001-03-22
Kaleena pose la question :
Factor this equation: 5x7-10x5+4x3-8x
Harley Weston lui répond.
Difference of squares 2001-02-20
Janna pose la question :
Hi! I was just wondering how you would factor x2 - 9y2.
Harley Weston lui répond.
Factoring 2001-01-24
Danielle pose la question :
4(x+1)2+y(x+1)
Penny Nom lui répond.
Factoring a trinomial 2001-01-24
Kyle pose la question :
I am an eighth grade student.I can not figure out the following problem. 4x2 + 2x - 20
Leeanne Boehm lui répond.
Factoring (u-v)3+v-u 2000-12-15
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. (u-v)^3+v-u. I have the answer but I need to know how it is done.
Penny Nom lui répond.
Vector Problem 2000-11-27
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 2000-10-31
A student pose la question :
Factor Completely

18p3 - 51p2 - 135p


Paul Betts and Penny Nom lui répond.
Factoring 2000-09-12
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 2000-09-07
Brian R. pose la question :
I need to find the root of the quadratic equation of a square. The problem is x2 + 22x + 112 = 0.
Penny Nom lui répond.
Covering 1, 1/2, 1/3,... 2000-08-22
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 2000-04-17
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 2000-02-27
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 2-3 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 2000-01-11
Dylan Kirkwood pose la question :
How can you factor a quadratic equation by graphing it?
Penny Nom lui répond.
Ordering fractions 2000-01-05
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 2000-01-03
Athena pose la question :

my name is Athena and I have a question on factoring: how would you figure this out:

(x6-y6) and (x6+y6)


Penny Nom lui répond.
Common factors 1999-10-06
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 1999-09-18
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 1999-09-09
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. 1999-07-24
Michael and Stephanie Bixler pose la question :
If you have the equation x= n2 - m2 (ie 40= 72-32= 49-9) 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 1999-03-30
Maggie Stephens pose la question :
I don't know anything about factoring would you plese help me.

3x4 - 48

54x6 + 16y3

125-8x3

12x2 - 36x + 27

9 - 81x2

a3 + b3c3

I would greatly appreciate any help you can give me thanks.
Jack LeSage lui répond.

Factoring polynomials 1999-03-29
Karen pose la question :
I have been unable to factorise a polynomial equation and was wondering if you could please help. It is level (10-12) maths. The polynomial is x3 + x2 - 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 1999-03-08
L. Sivad pose la question :
Question:
m2+6m+9-n2

Penny Nom lui répond.
Difference of squares 1998-06-23
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 two-digit numbers from 10-99 1998-01-21
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 two-digit 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 two-digit numbers from 10-99? Please help and thank you for any assistance you can give me.
Penny Nom lui répond.
 
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