Friday

November 28, 2014

November 28, 2014

Number of results: 139,476

**math**

A couple intends to have four children. Assume that having a boy and girl is equally likely event. a) List sample space b) Find the probability that couple has two boys and two girls; c) Find the probability that couple has at least one boy
*January 23, 2012 by juan777*

**probability**

a couple is planning to have three children. Find the probability that the couple will have: a.) 2 girls and 1 boy? b.) 2 girls followed by a boy? c.) at least 1 girl? please answer my question thank you very much, have a good day!
*September 21, 2012 by nitz*

**math**

Assuming boy and girl babies are equally likely, find the probability that a family with three children will have exactly 1 boy
*November 3, 2013 by Jazmine*

**odds of...**

Does anyone know the odds of having Two girls as children as opposed to two males or one male and one female? I say it is 25 percent but my friend says it is 33.3 percent. Can anyone clarify? Thanks! You are correct. Assuming tht boy and girls are equally probable each time, ...
*August 8, 2005 by Lynn*

**stat**

couple plans to have four children what is the probability that three are girls and one is a boy
*January 26, 2014 by jerry*

**Finite math**

A newly married couple decides to keep having children until they have a girl. What is the probability that the couple will have at least 5 children?
*May 3, 2012 by MV*

**Math**

In a family with two children, what are the probabilities of the following outcomes, assuming that the birth of boys and girls is equally likely? a. Both are boys. b. The first is a girl and the second a boy. c. Neither is a girl. d. At least one is a girl. I was wondering ...
*November 18, 2009 by Punkie*

**Help????????????????????/**

Assume a family is planning to have three children. A. What is is the probablity of a family having 2 girls. B. The probablity of a family having at least 1 boy. C. List the sample space using a B for Boy and G for girl (Hint there should be 8 possible outcomes).
*April 26, 2013 by Angela*

**Math-probablity**

Assume a family is planning to have three children. A. What is is the probablity of a family having 2 girls. B. The probablity of a family having at least 1 boy. C. List the sample space using a B for Boy and G for girl (Hint there should be 8 possible outcomes).
*April 26, 2013 by Angela*

**math probablity**

Assume a family is planning to have three children. A. What is is the probablity of a family having 2 girls. B. The probablity of a family having at least 1 boy. C. List the sample space using a B for Boy and G for girl (Hint there should be 8 possible outcomes). ??????
*April 26, 2013 by Angela*

**7th grade science**

Write a pedigree in which there are parents and 4 children, 1 girl and 1 boy are color blind and the other girl and boy are not. I HAVE A FEW QUESTIONS- ?- For a girl to be colorblind does her mother have to be colorblind too or just a carrier?her father? ?- If two people are ...
*January 4, 2010 by kendall*

**statistics**

3. A couple is planning on having four children. Assume that the probabilities of the man fathering a boy or a girl are .50 and .50, respectively. What is the probability that a. exactly two will be boys, b. fewer than two will be boys, and c. more than one will be a boy? ...
*June 7, 2013 by Lynn*

**maths**

Hi Can anyone help please: Suppose that the births of boys and girls can be modelled by rollling a fair die with 27 faces, 14 of which represent a boy and 13 represent a girl. 1. Using this model, choose the option that is closest to the probability that a couple who continue ...
*March 14, 2011 by Claire*

**maths**

Hi Can anyone help please: Suppose that the births of boys and girls can be modelled by rollling a fair die with 27 faces, 14 of which represent a boy and 13 represent a girl. 1. Using this model, choose the option that is closest to the probability that a couple who continue ...
*March 16, 2011 by Claire*

**English**

1. The boy is arm wrestling the girl. 2. The boy is arem wrestling with the girl. 3. The boy is having an arm wrestle with the girl. 4. The boy is having an arm wrestling against the girl. 5. The boy is doing an arm wrestle with the girl. 6. The boy is doing an arm wrestling ...
*May 29, 2012 by rfvv*

**math**

in a family with two children, what are the probabilities of two boys, the first is a girl the second is a boy, neither is a girl, at least one girl, assuming that the birth of boys and girls is equally likely.
*December 9, 2009 by Justin*

**Statistics**

Supposed (as is roughly correct) that each child born is equally likely to be a boy or a girl and that sexes of successive children are independent. If we let BG mean that the older child is a boy, and the younger child is a girl, then each of the combinations BB, BG, GB, GG ...
*May 28, 2011 by Chelsea*

**Math**

In a family with two children, what are the probabilities of the following outcomes, assuming that the birth of boys and girls is equally likely? a. Both are boys.b. The first is a girl and the second a boy. c. Neither is a girl. d. At least one is a girl. I am questioning ...
*November 4, 2009 by Anonymous*

**Physics**

Three children are trying to balance on a seesaw, which consists of a fulcrum rock, acting as a pivot at the center, and a very light board 6.0 long . Two playmates are already on either end. Boy A has a mass of 50 , and girl B a mass of 35 . Where should girl C, whose mass is...
*November 18, 2010 by Kyla*

**math**

What is the probability that exactly three children in a family of five children will be boys? Assume that P(boy)=P(girl)
*March 9, 2010 by Andrew*

**elementary statistics**

56% of families had no children under the age of 18;17% had no child;18% had two children;6% had three children; and 3% had four or more children. If a family is selected at random, find the probabilty that the family has less than three children(express your answer in percent...
*March 3, 2012 by goldielocks*

**Algebra**

5 Couples, having dinner before the prom are to be seated at a circular table. In how many ways can this occur if the seating must be boy girl, boy girl?
*May 23, 2013 by Tim*

**physics**

Suppose a 65-kg boy and a 45-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.
*October 28, 2009 by Liz*

**Physics**

Suppose a 68-kg boy and a 40-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s^2, find the magnitude of the acceleration of the boy toward the girl.
*January 3, 2010 by Sasha*

**Physics**

Suppose a 68-kg boy and a 40-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.
*January 5, 2010 by Sasha*

**physics**

Suppose a 64-kg boy and a 49-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.
*June 10, 2010 by Anonymous*

**physics**

Suppose a 69-kg boy and a 42-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.
*August 30, 2014 by sarah*

**Biology**

In man, muscular dustrophy , is inherited as a sex linked recessive , a couple , both of whom are normal, have five children, three boys and two girls , the oldest boy is beginning to show symptoms of the disease, what could you tell them about the chances of their children ...
*October 26, 2011 by Melissa*

**Math**

In Class A there are 80 the Boy to Girl ratio is 3 to 5. In Class B the boy to girl ratio is 3 to 2. If the 2 classes combined have an equal number o fboys and girls how many students are in class B?
*August 19, 2013 by Jackie*

**Science**

a 55 kh boy and 40 kg girl usa a rope while engaged in a tug-of-war on an icy frictionless surface. If the girl accelerates towards the boy at 5.1 m/s/s, what is the acceleration of the boy towards the girl. Thank You Did I not set this up for you last nite? What is it you do...
*December 30, 2006 by leafprincess*

**4th grade**

this year spring parade has a marching band, pairs of dancers, a float with jugglers, a dozen circus clowns, a girl scout troop a boy scout pack, and a championship football team. Directions: Read the description of each group carefully and decide how many are in each group ...
*November 18, 2010 by tristen*

**english**

need some social interaction activities which i can use in a clasroom teaching EFL.Children will be given a story about a boy and girl going on picnic.While the boy was reading a book and girl was picking flowers bear came and took some food and wanted to scare the boy.A girl ...
*December 13, 2008 by lily*

**physics**

Two children float motionlessly in a space station. The 20-kg girl pushes on the 40-kg boy and he sails away at 1.0m/s. What happens to the girl?
*October 11, 2011 by Anonymous*

**Physics -URGENT-**

A 55 kg boy and a 37 kg girl use an elastic rope while engaged in a tug-of-war on a frictionless icy surface. If the acceleration of the girl toward the boy is 2.4 m/s^2, determine the magnitude of the acceleration of the boy toward the girl in m/s^2
*October 6, 2013 by Natalie*

**science**

A 63 kg boy and a 44 kg girl use an elastic rope while engaged in a tug-of-war on a frictionless icy surface. If the acceleration of the girl toward the boy is 1.7 m/s 2 , determine the magnitude of the acceleration of the boy toward the girl
*September 12, 2011 by jasmine*

**physics6**

A 64-kg boy and a 42-kg girl use an elastic rope while engaged in a tug-of-war on an icy frictionless surface. If the acceleration of the girl toward the boy is 3.5 m/s2, determine the magnitude of the acceleration of the boy toward the girl.
*December 11, 2011 by Hannah*

**PHYSICS**

55 kg boy and a 37 kg girl use an elastic rope while engaged in a tug-of-war on a frictionless icy surface. If the acceleration of the girl toward the boy is 2.4 m/s 2 , determine the magnitude of the acceleration of the boy toward the girl in m/s^2
*October 6, 2013 by Natalie*

**physic**

A 57 kg boy and a 42 kg girl use an elastic rope while engaged in a tug-of-war on a frictionless icy surface. If the acceleration of the girl toward the boy is 3.4 m/s2, determine the magnitude of the acceleration of the boy toward the girl. Answer in units of m/s2.
*September 22, 2010 by Wendia*

**Physics **

A 57 kg boy and a 45 kg girl use an elastic rope while engaged in a tug-of-war on a frictionless icy surface. If the acceleration of the girl toward the boy is 1.5 m/s2, determine the magnitude of the acceleration of the boy toward the girl. Answer in units of m/s2
*October 14, 2012 by Jessica*

**physics**

A 58 kg boy and a 38 kg girl use an elastic rope while engaged in a tug-of-war on a frictionless icy surface. If the acceleration of the girl toward the boy is 3.1 m/s 2 , determine the magnitude of the acceleration of the boy toward the girl. Answer in units of m/s 2
*September 13, 2013 by Shareka*

**probability**

For a family with 2 children, the sample space indicating boy (B) or girl (G) is BB, BG, GB, and GG. If each of the outcomes is equally likely, find the probability that the family has 2 girls, given that the first child is a girl.
*July 6, 2013 by sarah*

**physics**

A 38.3 kg girl and a 55.4 kg boy are on the surface of a frozen lake, 10.0 m apart. Using a rope, the girl exerts a horizontal 5.50 N force on the boy, pulling him toward her. Calculate the magnitude of the girl's acceleration.
*February 28, 2012 by meyer *

**physics**

A 38.5 kg girl and a 57.0 kg boy are on the surface of a frozen lake, 10.0 m apart. Using a rope, the girl exerts a horizontal 5.55 N force on the boy, pulling him toward her. Calculate the magnitude of the girl's acceleration
*October 4, 2012 by kay*

**Physics**

60.0 kg boy and a 40.0 kg girl are sitting in identical office chairs in a large warehouse. The coefficients of static and kinetic friction between the chairs and the horizontal floor are both 0.250. The boy puts his feet up against the girl’s chair and pushes it with a ...
*April 2, 2012 by LEBZA*

**Physics**

A 43.3 kg boy and a 60.0 kg girl are on the surface of a frozen lake, 10.5 m apart. Using a rope, the boy exerts a horizontal 5.90 N force on the girl, pulling her toward him. Calculate the magnitude of the boy's acceleration.
*January 25, 2011 by Megan*

**Physics please help!!**

A 43.3 kg boy and a 60.0 kg girl are on the surface of a frozen lake, 10.5 m apart. Using a rope, the boy exerts a horizontal 5.90 N force on the girl, pulling her toward him. Calculate the magnitude of the boy's acceleration.
*January 25, 2011 by Megan*

**Probability**

Can someone tell me if I have the correct answers? I am really confused. Three boys and three girls line up to go in the front door. In how many ways can they line up? My answer: 720 How many ways can they line up if the first one in line is a girl and then alternates by ...
*August 23, 2008 by Tim*

**physics**

A 45 kg boy is holding a 12 kg pumpkin while standing on ice skates on a smooth frozen pond. The boy tosses the pumpkin with a horizontal speed of 2.8 m/s towards a 37 kg girl who catches it. The girl is also wearing ice skates. What are the final speeds of the boy and the girl?
*March 3, 2014 by Hal*

**Math probabilty**

An amusement park, Dino World, considering adding some new attractions, conducted a study over several typical days and found that, of 10,000 families entering the park, 1020 brought just one child (defined as younger than age 12), 3370 brought two children, 3510 brought three...
*July 10, 2011 by sky*

**Physical Science**

A 30 kg girl and a 25 kg boy face each other on friction-free roller blades. The girl pushes the boy, who moves away at a speed of 1.0 m/s. The girl speed is _______ m/s?
*March 20, 2009 by Donna*

**physical science**

a 30 kg girl and a 25 kg boy face each other on friction-free roller blades.the girl pushes the boy,who moves away at a speed of 1.0 m/s.the girl,s speed is _ m/s.
*May 4, 2012 by Anonymous*

**physical science**

a 30 kg girl and a 25 kg boy face each other on friction-free roller blades.the girl pushes the boy,who moves away at a speed of 1.0 m/s.the girl,s speed is _ m/s.
*May 4, 2012 by Anonymous*

**Latin**

I took out the Latin Rosetta Stone from the library and im at the end of lesson 11 these 2 picture are confusing me bc of the endings. One picture has a girl with short hair, the other a boy w short hair. For girl it says "Femina capillos breves habet" boy it says "Vir ...
*June 14, 2009 by Kim*

**Science**

A 55 kg boy and 40 kg girl usa a rope while engaged in a tug-of-war. If the girl accelerates towards the boy at 5.1 m/s/s, what is the acceleration of the boy towards the girl? The force on the rope is the same both ways. Forceonrope=massgirl*accelerationgirl solve for the ...
*December 29, 2006 by leafprincess*

**science**

A normal man and a heterozygous color blind "carrier" woman have a baby. If they have a girl, what is the probability that the girl will be colorblind. If they have a boy, what is the probability that the boy will be colorblind?
*December 18, 2012 by kelly*

**Science**

Two parents have three children. They have two girls and one boy. What is the probability that the next child will be a boy?
*April 8, 2013 by Bobby*

**Statistics**

Suppose you conduct a study and find that the probability of having a baby boy is 60%. Now suppose three of your relatives are going to have babies. a) Build a tree diagram showing all the conditional probabilities and joint probabilities associated with the sex of the three ...
*May 10, 2008 by Danny*

**Statistics**

Suppose you conduct a study and find that the probability of having a baby boy is 60%. Now suppose three of your relatives are going to have babies. a) Build a tree diagram showing all the conditional probabilities and joint probabilities associated with the sex of the three ...
*May 11, 2008 by Danny*

**Math**

Assume the probability is 1/2 that a child born is a girl. If a family has three children, what is the probability that they have a) exactly one girl b) at most two boys?
*January 10, 2011 by Nicole*

**Physics**

a 40kg girl and a 30kg boy face each other on friction free roller skates. the boy pushes the girl,
*May 19, 2014 by Leah*

**math**

if you have a bill of 1.354 pesos ( philippines money) how can you it equal to a three family. example .Daniel 2 children Rolando 4 children Dante 5 children. how much will he pay per head of the family in order to equal a bill of each children to a bill of 1.354?
*January 1, 2011 by Greg*

**Statistics**

A statistician believes that in her town each child born has a 50% chance of being a girl, independently of all other children. There are 281 three-child families in her town; 39 of these families have no girls, 94 have one girl, 115 have two girls, and the remaining 33 have ...
*August 25, 2013 by Anesia*

**math**

Below is a sample space for a family with 3 children. BGG stands for the oldest child being a boy, the middle child a girl, and the youngest a girl. Use the sample space to answer the question:What is the probability (in simplest form) that the middle child is a boy? _____ ...
*April 5, 2012 by Cheril*

**english paper help highschool**

I'm writing a paper on love and I'm comparing boy/girl love veruses family love of 4 different characters. I have a definition for boy/girl love but I can't seem to find a definition for family love. Can you help please?
*July 6, 2009 by anna*

**Literature Opinion Please Read**

I need your opinion on something. If you are a boy please refer to a girl. If you are a girl please refer to a boy. Ok now if you are doing a play for Romeo and Juliet and you had the opposite gender would you sound like yourself or would you try to sound like a girl or boy. ...
*February 25, 2009 by Kiki*

**math**

Suppose that China’s population policy is modified so that every family could have children until either a boy is born or until a maximum of four children are born, whichever comes first. Assume that every family chooses to have as many children as possible under this policy, ...
*May 11, 2013 by emma*

**mathematics**

Consider the composition of a three-child family. Assume that a girl is as likely as a boy at each birth. What is the probability that there is one boy and two girls in the family?
*February 20, 2011 by Anonymous*

**science**

5a 30 kg girl and a 25 kg boy face each other on friction -free roller blades . the girl pushes the boy ,who moves away at a speed of 1.0 m/s . the girls speed is how many m/s /
*September 19, 2010 by Rich *

**science**

A 30kg girl and a 25 kg boy face each other on friction free roller blades the pushes the boy who moves away at a speed of 1.0m/s the girl's speed is m/s?
*October 21, 2010 by Reno*

**PHYSICAL SCIENCE**

A 30 KG GIRL AND A 25 KG BOY FACE EACH OTHER ON FRICTION-FREE ROLLER BLADES. THE GIRL PUSHES THE BOY, WHO MOVES AWAY AT A SPEED OF 1.0 M/S. THE GIRLS SPEED IS?
*August 21, 2010 by JACQUELYNNE*

**Physical Science **

a 30 kg girl and a 25 kg boy face each other on a friction-free blades. The girl pushes the boy, who moves away at a speed of 1.0 m/s. The girls speed is __________m/s
*October 25, 2011 by Grace*

**behavioral science**

if a girl likes a boy and wants to hint to him she likes him humans r habitat creatures how would the girl show or tell the boy?
*June 1, 2011 by seinea*

**college math**

A couple plan to have exactly three children. (a) Construct a tree diagram and list the sample space. (b) Find the probability that the family has at least two girls.
*December 11, 2007 by Rose*

**BIO**

Which gamete, the egg or sperm, determines if Holly and Edward will have a boy or girl? (A)__________ If in the future Holly and Edward have three boys, what is the probability that their fourth child will be a girl? (B)__________ MY FIRST ANSWER IS SPERM NOT SURE ON THE ...
*May 26, 2014 by carrie*

**Algebra Grade 7**

Mr and Mrs Chen have three children. suppose the chance of having wither a boy or girl is 50%. what is the probability of having two boys and one girl? 2/9? a survey with 104 responses asked what is your favorite winter activity the results are listed in tabel if 500 ppl had ...
*December 21, 2012 by fanggirl.rockrchik*

**help... probability**

The Smith family has 4 children that are all girls. What is the probability that the next one will be a girl? You plan on having four children and you want all boys. If you have children, what is the probability you will get four boys?
*October 16, 2007 by maggie r*

**statistics**

Define each of the following probability terms for the scenario of determining the probability that when a couple has 3 children, they will have exactly 2 boys. Assume that boys and girls are equally likely and that the gender of any child is not influenced by the gender of ...
*September 6, 2014 by thankyou*

**Math**

At a summer camp, one boy and one girl will be selected to lead the weekly activities. If there are 130 boys and 145 girls at the camp, how many different 2 person combinations of 1 boy and 1 girl are possible?
*February 5, 2013 by Nancy*

**ENGLISH**

I've been given this question for the novel THE GREAT GATSBY and have been stuck on how to answer it for hours. "Boy meets girl...boy loses girl" this novel is merely another love story. to what extentdo you share this opinion of the novel? Im not sure how to structure the ...
*October 25, 2008 by ANNABELLE*

**physics**

The figure shows a girl and a boy each exerting a force to move a crate horizontally a distance of 13 m at a constant speed. The girl’s applied force is 75 N [22° below the horizontal]. The tension in the rope pulled by the boy is 75 N [32° above the horizontal].
*October 11, 2014 by Anonymous*

**physics**

A 50 foot see-saw has 4 kids sitting on it. A 62 lb. girl sits on the left end, with a 76 lb. girl sitting 2.5 feet in front of her. On the right side, a 96 lb. boy sits on the end and has another boy sitting 2.5 feet in front of him. How much does this other boy weigh?
*January 20, 2014 by Marina*

**math**

If 10 human couples move into a new unpopulated area, how many people will live in the area after 200 years? The couples are 20 years old when they move. The people's life expectancy is 60 yeras, the average family has 4 children, and the average couple begins having children ...
*January 28, 2007 by Stephanie*

**physics**

A 53.0 kg boy and his 41.0 kg sister, both wearing roller blades face each other at rest. The girl pushes the boy hard, sending him backward with a velocity 3.00 m/s toward the west. Ignore friction. (a) Describe the subsequent motion of the girl, and then check it against the...
*February 23, 2010 by Mathieu*

**English**

There is a couple in my neighborhood. They are poor and they have no children. ----------------- Do we have to use 'there is' instead of 'there are'? In the second sentence 'they' refers to 'a couple'. Do we have to use 'they'?
*August 25, 2008 by John*

**math**

A couple plans to invest money for the chld's education. What principle must the couple deposit when their child is born so that when she turns 18 she will have $50,000. Assume the money earns 6% compounded monthly.
*January 13, 2010 by yusuf*

**Physics**

A 65kg boy and his 40kg sister, both wearing roller blades, face each other at rest. The girl pushes the boy hard, sending him backwards with a velocity of 2.9m/s towards the west. Ignore friction. What is the minimum amount of chemical energy is converted into mechanical ...
*April 7, 2011 by Hadeel*

**Early Child Ed.**

Would someone please check these questions and my answers to be sure I have chosen the best possible answer? 1.Which one of the following is NOT a developmentally appropriate practice for a four-year-old with physical disabilities? A. Simplifying an art activity sightly B. ...
*July 10, 2007 by Tamera*

**math**

Assuming boy and girl babies are equally likely, find the probability that it would take a) at least three births to obtain two girls b) at least four births to obtain two girls c) at least five births to obtain two girls
*November 15, 2012 by Andrew*

**math**

Assuming boy and girl babies are equally likely, find the probability that it would take a) at least three births to obtain two girls b) at least four births to obtain two girls c) at least five births to obtain two girls
*November 16, 2012 by Andrew*

**English**

On the playground, there are two fathers and three kids. There is a slide on the playground. On the slide a boy is sliding down upside down, and his father is catching the boy. The other father is holding a girl in her left hand. The other girl is on his back and the father is...
*November 4, 2013 by rfvv*

**Data Management**

a couple is planning to have seven children. what is the probability that at least 3 of the children will have a birthday in the same month
*January 22, 2014 by Anon*

**Health (Ms. Sue)--These are my final questions.**

Ms. Sue, please, can you help me with these remaining questions? 1. List three ways you could help make your family relationships healthier. A: ? 2. Describe the responsibilities of a parent. A: ? 3. Why do you think the households made up of married couple who have children ...
*December 10, 2013 by Anonymous*

**Probabilty**

The public transport system is aware that one person in twenty does not buy a ticket for their trip. The manager decides to challenge 200 travelling people as to charger they have a valid ticket or not. (a) calculate the probabilty that everyone had a ticket, (b) calculate the...
*April 29, 2010 by Anonymous*

**maths-probability**

A family has four children. The probability of having a girl is 1/2. What is the probability of having 2 girls followed by 2 boys?
*April 16, 2008 by louis*

**physics**

A 68.0 kg boy and his 45.0 kg sister, both wearing roller blades face each other at rest. The girl pushes the boy hard, sending him backward with a velocity 3.70 m/s toward the west. Ignore friction. How much chemical energy is converted into mechanical energy in the girl's ...
*September 29, 2008 by tom*

**Physics HELP!**

A 650 N boy and a 490 N girl sit on a 150 N porch swing that is 1.70 m long. If the swing is supported by a chain at each end, what is the tension in each chain when the boy sits .75 m from one end and the girl .5 m from the other end?
*December 5, 2010 by Jennifer*

**Math(Probability)**

**Describe the outcome space** (a)If a Families that have three children each and select one such family at random. Describe the sample space S in terms of their children as 3-tuple, agreeing for example that "gbb" would indicate that the youngest is a girl and two oldest are ...
*March 16, 2011 by Melissa*

**math**

A triangle having three equal sides is necessary and sufficient for a triangle having three equal angles
*September 6, 2014 by Anonymous*

**Pre-Calculus**

I'm having problems solving this and showing the steps: Find the absolute maximum and absolute minimum, if either exists, for y = f(x)= x^3 - 12x + 12 -3 less equal to x greater than equal to 5
*November 19, 2011 by Stacy*

**English**

I am still confused about the use of 'a couple of' For example, if a person says, 'I have a couple of pens,' does it mean he has two pens or he has two, three, or four pens? I know in a colloquial expression, 'a couple of' means two, three or four? Am I right?
*November 20, 2009 by rfvv*

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