# Posts by Maria

Total # Posts: 1,976

**Math**

If 3 people are asked what day of the week they were born, find the probability that i) 2 or 3 are the same. ii) only 2 people are the same. - is this 1/7 x 1/7 ?? If 4 people are asked what day of the week they were born, what is the probability that 2 or more people were ...

*February 22, 2010*

**Math**

There is exactly the same number of lollies in 10 different colours in a jar. (There are thousands of each lolly) If one lolly is picked out , the probability of being one colour is 1/10 and the second being same colour is also 1/10 <-- I do not understand why this is, the ...

*February 22, 2010*

**Maths**

There is exactly the same number of lollies in 10 different colours in a jar. (If one lolly is picked out , the probability of

*February 22, 2010*

**chemistry**

A 0.972g sample of a CaCl2*2H2O/K2C2O4*H2O solid salt mixture is dissolved in ~ 150ml of deionized water, previously adjusted to a pH that is basic. The precipitate, after having been filtered and air-dried, has a mass of 0.375 g. The limiting reactant in the salt mixture was ...

*February 19, 2010*

**Math**

A line parallel to 4x=3y-13? I came up with m=4/3 y-3=4/3 + 16/3 after working problem got ans y= 4/3x+25/3 confused???

*February 19, 2010*

**Math**

Is this correct? Ans. y=2x+20.5

*February 18, 2010*

**Math**

finding a equation in slope-intercept form. Through (-9, 2.5) and (-5, 4.5)

*February 18, 2010*

**college**

o ok thank you, so is everything else correct?

*February 18, 2010*

**college**

Y would you not round?

*February 18, 2010*

**college**

Let x be the number of miles driven on 60 gallons of gas. By setting up and solving a proportion involving x, find the value of x for the car that you have chosen. State the type of car, the mileage, and show both the set up of the proportion and the steps to solve. Include ...

*February 18, 2010*

**Physics**

that is rude!!

*February 17, 2010*

**French**

the answers are correct.

*February 17, 2010*

**geometry**

the legs of the isosceles triangle each measure 14in.find the length of the hypotenuse

*February 16, 2010*

**Finite Math**

I know but that's what the question asked. Thanks

*February 13, 2010*

**Finite Math**

If the life in years, of a television set is normally distributed with a mean of 46 years and a standard deviation of 4 years, what should be the guarantee period if the company wants less than 3% of the television sets to fail while under warranty?

*February 13, 2010*

**Finite Math**

Suppose a family has 5 children. Suppose the probability of having a girl is 1/2. find the probability that the family has exactly 3 girls and 2 boys?

*February 10, 2010*

**8th grade**

why do states need to be concerned about laws passed in other states

*February 4, 2010*

**consumer math**

Carlos Martin received a statement from his bank showing a balance of $56.75 as of March 15. His checkbook shows a balance of $87.37 as of March 20. The bank returned all the cancelled checks but two. One check was for $5.00 and the other was for $13.25. How much did Carlos ...

*February 4, 2010*

**physics**

if you wished to warm 100 kg of water by 15 degrees celsius for your bath, how much heat would be required? (give your answer in calories and joules)

*January 28, 2010*

**calculus**

prove the following integrals: a)sin3xcos7xdx = -1/20cos(10x)+1/8cos(4x) i know i have asked this question before but i am very confused bobpursley, can you please show me the steps of proves. thanks in advanced

*January 28, 2010*

**calculus II university**

prove the following integrals: a)sin3xcos7xdx = -1/20cos(10x)+1/8cos(4x) b)sin8xcos3xdx = -1/22cos(11x)-1/10cos(5x)

*January 28, 2010*

**social studies**

What was Willson's plan for peace?

*January 27, 2010*

**social studies**

what was the nick name for the soilders in the world war 1

*January 27, 2010*

**Early Childhood Growth and Development**

the answer choices are : A.the child finds the behavior self-reinforcing. B.the stimulation of the action is satisfying. C.the stimulation provided by the action is associated with a basic drive D.the child is caught up in a simple reflex.

*January 24, 2010*

**math**

If a person were driving 162 kilometers per hour on a U.S. highway with a speed limit of 70 miles per hour, would he likely be speeding?

*January 23, 2010*

**math**

If you were buying nuts, would you rather pay $9/kg or $4/ 500g of nuts?

*January 21, 2010*

**20th century history**

right now my class is studyign the 1920's which was a time period where ,odern life became more popular but tradionalist tried to return life to how it use to be. what is the sourse of this culrural conflict, and what was the outcome of the cultural conflict during this ...

*January 19, 2010*

**3rd grade science**

Explain how you can tell that an object is in motion

*January 18, 2010*

**chemistry**

nf is 2

*January 15, 2010*

**8th grade Math**

The area of a irregular trapezoid is 38.

*January 12, 2010*

**8th grade Math**

How to find the area of a irregular trapezoid?

*January 12, 2010*

**World Cultures**

What are some crafts or games from Iceland I can share with the class for my project? (I've tried googling with no success).

*January 12, 2010*

**math**

Amy paints a house in 4 hours and Thomas paints the same house in 6 hours. How long will it take to paint the house together?

*December 31, 2009*

**math**

what a regular polygon

*December 22, 2009*

**Culteral Diversity**

A society that needed slaves and tenant farmers

*December 19, 2009*

**ap european history**

Louis XIV declared his goal was '' one king, one law, one fait''. analyze the methods the king used to achive this objective and discuss the extent to which he was successful.

*December 16, 2009*

**math 157**

The Political Noise Problem. The amount of background noise is important to television news reporters. One station developed the formula showing the noise level in decibels (N) as it relates to the time after the speaker stops talking in seconds (t). How many seconds after the...

*December 15, 2009*

**New Testament Survey**

D-Antiochus Epephanes

*December 10, 2009*

**chemistry**

which do you think would be more dangerous near an open flame, an ionic or covalent compound?

*December 7, 2009*

**Math Word Problem**

40,320

*December 5, 2009*

**math**

-4(2n-6)<n+6

*December 3, 2009*

**math**

help me write a formula that illustrates that I am in the market for a new home and there are 56 houses available and only two floor plans left using y and x

*December 1, 2009*

**Social Studies quick question**

Thank you Mrs. Sue!

*November 30, 2009*

**Social Studies quick question**

James Watt invented the steam engine in what year, and where? Are these right In the 1760s he invented the steam engine in Britain

*November 30, 2009*

**French**

Could you check these also thanks: Directions: Donnez des réponses personnelles. 1. Tu vas souvent au cinéma? Answer: Oui, je vais souvent au cinéma. 2. Qu'est-ce que tu aimes comme films? Answer: J'aime un film d'horreur. 3. Quel est ton ...

*November 30, 2009*

**French**

Could you check these thanks: Directions: Vrai ou Faux? 1. Un film doublé a des sous-titres. Answer: vrai 2. Un film en version originale est toujours en français. Answer: faux 3. Au cinéma, il y plusieures séances le week-end. Answer: Faux 4. On ...

*November 30, 2009*

**statistics**

what is 510,000,000 rounded to the nearest 10th or 10%

*November 27, 2009*

**psy**

I NEED HELP ON THE NEXT WORLDS PLEASE i need the definition also please 1. Performance goals 2. Mastery goals 3. The effect of praise 4. Expectations and self-efficacy

*November 23, 2009*

**PSY**

I NEED HELP ON THE NEXT WORLDS PLEASE i need the definition also please 1. Performance goals 2. Mastery goals 3. The effect of praise 4. Expectations and self-efficacy

*November 23, 2009*

**psy**

okay thanks

*November 23, 2009*

**psy**

hi, i need help on this assigments can you help me please i need to find the following definitions please help me. 1. The danger of overdiagnosis 2. The power of diagnostic labels 3. The confusion of serious mental disorders with normal problems 4.The illusion of objectivity

*November 23, 2009*

**Management**

What ist he difference between situational leadership and path-goal management?

*November 20, 2009*

**Spelling/ Language Arts**

thanks so much

*November 19, 2009*

**Spelling/ Language Arts**

Unscramble these words to make a sentence that makes sense the preliminary steps captain took to the organize team PLEASE HELP ME!!!!!!!!!!!

*November 19, 2009*

**chemistry**

double bond

*November 19, 2009*

**Unscramble**

I don't know? That's a hard one.

*November 19, 2009*

**Unscramble**

Can you unscramble this sentence? the preliminary steps captain took to the organize team Please unscramble these words to make a sentence to make scense.

*November 19, 2009*

**health**

thats a wierd question how about duck tape to shut the patient up.

*November 19, 2009*

**physicss**

A small cork with an excess charge of +5.0 μC is placed 0.12 m from another cork, which carries a charge of −3.2 μC. What is the magnitude of the electric force between the corks? The Coulomb constant is 8.98755 × 109 N · m2/C2. Answer in units of N.

*November 15, 2009*

**maths**

a common multiple of 3,4 and 5 less than 150

*November 13, 2009*

**French**

I'm sorry for number 8 I meant dépêchent

*November 12, 2009*

**French**

Could you check these thanks Directions: Complete each sentence with the correct form of the verb in parentheses. 1. Le matin, tout le monde veut la salle de bains. Moi, je -------- à sept heures. (se réveiller) Answer: me réveille 2. Mon frère...

*November 12, 2009*

**Computer**

Which of the following would be most likely to be paid from petty cash? a. coffee for the staff, b. rent for the office, c. the telephone bill

*November 9, 2009*

**5TH GRADE MATH**

44 TIMES N =368....FIND N

*November 5, 2009*

**5TH GRADE MATH**

368/44

*November 5, 2009*

**5TH GRADE MATH**

211 DIVIDED BY 36?

*November 5, 2009*

**Math**

You finish a two-mile walking race in 36.5 minutes. Write an inequality for the average speed of the walkers who finished after you did. (Average Speed = Distance/Time).

*November 4, 2009*

**Math**

1. |x+3|=4 x = 1, -7 2. |x-2|=6 x = 8, -4 3. |x-5|<3 x = ?? 4. |2x+3|>*17 x = ?? [>* means greater/less than OR equal to] Please check. And show how to do numbers 3 and 4. Thank you.

*November 4, 2009*

**Math**

You have $5 to spendon fruit for a picnic. Apples cost $0.99 per pound and bananas cost $0.49 per pound. Write an inequality to model the amount of apples and bananas you can buy.

*November 4, 2009*

**math**

i need a answer to a math problem

*November 3, 2009*

**6th grade**

a 600 n box is pushed up a ramp that is 2m high and 5 m long, the person is pushing the box at a force of 300 n,what is the efficiency of a ramp ?

*November 3, 2009*

**Any Help w/5th grade math**

211 DIVIDED BY 36?

*November 2, 2009*

**Health**

Are there any medications to treat steroid effects? [Exact pill/medicine names, please.]

*November 1, 2009*

**Health**

What are some specific programs/medications that help deal with anabolic steroids?

*November 1, 2009*

**Health**

Thank you (:

*November 1, 2009*

**Health**

How are messages about steroids delivered by media?

*November 1, 2009*

**Writing I**

Label each sentence below. Use S for simple, CD for compound, CX for complex, and CD-CX for compound-complex. 1. Do you know the theory of black holes? 2. Objects in space have gravitational pull, so smaller objects are attracted to larger object. 3. Throw a rock into the air...

*October 30, 2009*

**Writing I**

Label each sentence below. Use S for simple, CD for compound, CX for complex, and CD-CX for compound-complex. 1. Do you know the theory of black holes? 2. Objects in space have gravitational pull, so smaller objects are attracted to larger object. 3. Throw a rock into the air...

*October 30, 2009*

**spelling**

Sorry.... it's Assistant

*October 27, 2009*

**spelling**

Assisant is the word

*October 27, 2009*

**French**

Could you please check these thanks. Directions: Rewrite the sentecnes in the passé composé. Part I 1. Je vais à l'école. Answer: Je suis allée à l'école. 2. J'arrive à huit heures. Answer: Je suis allé...

*October 27, 2009*

**psychology**

punishing a behavior by ignoring it: A) works best if you just don't give in B) works best if you also reinforce the alternative behavior you want C) can only lead to worse problems D) will cause an immediatw decrease in the behavior

*October 23, 2009*

**psychology**

okay

*October 23, 2009*

**psychology**

i belive that is a positive one so it could be B

*October 23, 2009*

**psychology**

Erica tries to avoid her boss when he's in a bad mood. To keep out of his way, she spends more time doing dreade but important paperwork, which she usually puts off as long as she can. Her employer's bad moods have the effect of_________ her attention to the dreaded ...

*October 23, 2009*

**psychology**

so it could be D has been positively reinforced

*October 23, 2009*

**psychology**

want to grab attention

*October 23, 2009*

**psychology**

john loves attention

*October 23, 2009*

**psychology**

i believe that the answer is A

*October 23, 2009*

**psychology**

To punish John for clowning around, his teacher makes him sit up front where she can keep an eye on him. John loves attention and secretly has always wanted to sit in the front of the class where he can be the center of attention. John's clowning around behavior: A) is now...

*October 23, 2009*

**Health Care Reimbursement Methodologies**

B. case-mix group data. is this for penn foster because i just finished an exam with the same ? well hope this helps i think this was the answer

*October 22, 2009*

**english**

what is the meaning of the subject of the sentence?

*October 19, 2009*

**physics**

If a car accelerates from rest at a constant 5.5m/s^2, how long will be required to reach 28m/s?

*October 17, 2009*

**Business**

good communication

*October 14, 2009*

**10th grade**

Find the coordinates of the centroid of the triangular metal part with verticies at A(12,18) B(18,6) C(3,12)

*October 14, 2009*

**Physics**

A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.70 m/s at an angle of 23.0° below the horizontal. It strikes the ground 6.00 s later. (Ignore air resistance.) (a) How far horizontally from the base of the building does ...

*October 13, 2009*

**Physics**

A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.70 m/s at an angle of 23.0° below the horizontal. It strikes the ground 6.00 s later. (a) How far horizontally from the base of the building does the ball strike the ...

*October 12, 2009*

**us history**

what happenned to the people of the south as the result of the plsse v furgson?

*October 1, 2009*

**us history**

how Jim Crows laws undermined the 13th 14th and 15th amendments

*October 1, 2009*