Friday
July 31, 2015

Posts by MArie


Total # Posts: 1,318

physics
thank you, but for some reason its wrong
October 8, 2010

physics
190Km * 29.5 MJ *
October 8, 2010

physics
A 72.0 kg piece of a satellite left over from an explosion with zero orbital velocity in space falls from a distance of 190 above the surface of the earth down toward earth. It arrives with 29.5 Km (M="mega") kinetic energy on earth. How many MJ energy have been lost...
October 8, 2010

geometry
suppose you copy a drawing of a polygon with the given size factor How will the sides lengths angle measures and perimeter of the image compare to those of the original? a)200% b)150% c)50% d)75%
October 4, 2010

algebra
The Mayan Empire, which ruled Central America for centuries, had two calendars. One calendar was the same as ours, 365 days long (without leap year). The other calendar was 270 days long, the length of a woman's pregnancy. If both start on day one at the same time, then ...
October 1, 2010

chemistry
thnks :)
September 28, 2010

chemistry
Hi, Im trying to understand this. If i have Cl35 and Cl37 what would their differences be in physical property? Im assuming boiling point and melting point obviously, but are there any more? Atomic weight or ionization energy? Thnx :)
September 28, 2010

chemistry
Hi, Im trying to understand this. If i have Cl35 and Cl37 what would their differences be in physical property? Im assuming boiling point and melting point obviously, but are there any more? Atomic weight or ionization energy? Thnx :)
September 28, 2010

grammar
I'm supposed to identify subordinate clauses in the following questions and then label them as complement, adjunct or relative clauses. I'm lost, how can you tell the difference? Example: It would be tragic if you realized too late, as so many others do, there's ...
September 27, 2010

math
why do we use reciprocal in math?
September 26, 2010

algebra
Tu n'a qu'a diviser les deux parties par a et puis tu auras: a=f/m
September 25, 2010

algebra
transpose b au premier membre et cela va changer le signe de b et vous aller avoir:y-b = mx et pour tirer x vous devriez diviser y-b par le coefficient de x qui est m. alors on a: x=y-b/m
September 25, 2010

Chemistry
What weight of copper(II) oxide, CuO, would theoretically be produced from 1.623 grams of copper? (mol. masses Cu = 63.55; O = 16.00)
September 22, 2010

Chemistry
So from 1.623 g of Cu, I'd get: ANS: 1.252 X 1.623 g of Cu = 2.032 g OR ANS: 1.623 g of Cu/1.252 = 1.296 g? OR ANS: 1.623 - 1.252 = 0.371 g I am still confused what you mean by that question.
September 22, 2010

Chemistry
What weight of copper(II) oxide, CuO, would theoretically be produced from 1.623 grams of copper? (mol. masses Cu = 63.55; O = 16.00)
September 22, 2010

chemistry
a metal weighing 20.32 g is added to a flask with a volume of 24.5ml. it is found that 18.52 g of water must be added to fill tha flask what is the density of metal
September 15, 2010

French
Okay thank you (:
September 7, 2010

French
That would make more sense. Unfortunetley my worksheet definitley caise "combien de notes" :(
September 7, 2010

French
Thats what I thought it meant too, but there isn't anything to do with notes about this research project so it does not make any sense.
September 7, 2010

French
Translate to English: Combien de notes aurez-vous pour votre projet de recherche? I've tried this on translating sites, but the translations just don't make any sense. The part about notes...I don't think it means notes in English. Please help!
September 7, 2010

microbiology
penicillin was called a" mircle drug" because it doesnt harm cell. why doesnt it?
September 2, 2010

math
If the sides of a square are lenthened by 7 cm, the area becomes 121 cm^2. Find the length of a side of the original square
August 29, 2010

math
If the sides of a square are lenthened by 7 cm, the area becomes 121 cm^2. Find the length of a side of the original square
August 29, 2010

math
state the value of the discriminant and the discribe the nature of the solution 20x^2-8x-17=0
August 29, 2010

Math
find a polynomial for the perimeter and for the area m+2 on top and m on the right side?
August 29, 2010

statistics
without the use of the standard normal tables, should techniques of calculus be used to find the probabilities concerning a normal distribution?
August 20, 2010

statistics
what is the most likely answer for the confidence coefficient of linear correlation if x = the number of hours spent studying for a test, and y = the number of points earned on the test?
August 20, 2010

statistics
the random variable x is normally distributed with a mean of 75 and a standard deviation of 15.0. For this distribution, what is the twenty-third percentile?
August 20, 2010

math
maria bicycles 8 km/h faster than carlos. in the same time it takes carlos to bicycle 48 km maria can bicycle 72 km. how fast does each bicyclist travel?
July 21, 2010

math
sorry elana is supposed to be maria
July 21, 2010

math
maria bicycles 8 km/h faster than carlos. in the same time it takes carlos to bicycle 48 km, elena can bicycle 72 km. how fast does each bicyclist travel
July 21, 2010

Accounting
Costs can be classified into two categories, fixed and variable costs. These costs behave differently based on the level of sales volumes. Suppose we are running a restaurant and have identified certain costs along with the number of annual units sold of 1000. Item: Raw ...
July 20, 2010

Chemistry
a chemist needs 46 mol of ammonia for a reaction to complete. he has 46 grams available but needs ammonia as a liquid (D=2.4g/ml). does he have enough? ammonia has an atomic weight of 17 grams
July 12, 2010

Chemistry
im trying to do the dimensional analysis for it but i keep getting up to a point and stopping. i get as far as.... 46g x 1mole/17g x ___/ mole ... im not really sure what to do after that.
July 12, 2010

Chemistry
a chemist needs 46 mol of ammonia for a reaction to complete. he has 46 grams available but needs ammonia as a liquid (D=2.4g/ml). does he have enough? ammonia has an atomic weight of 17 grams
July 12, 2010

Physics
A -4.0-µC charge is located 0.30 m to the left of a +6.0-µC charge. What is the magnitude and direction of the electrostatic force on the positive charge?
July 6, 2010

phys/ 210
I need help in answering this question personality theories disussed in text i am using learning theory and trait theory comparing and contrasting these two theories
July 3, 2010

american government
i believe that a would be the correct answere due to so there would not be confusion in the law and questions can be avioded in understanding the law.
July 2, 2010

Spanish please help?
Sra ramired is asking her family if they did everything they were supposed to do today write the excuses with the correct preterite form like i know what that is of HACER,IR,PODER,SER or TENER paquito fuiste a la biblioteca verdad? ay no mama no ________ 1 ir ____________ 2 ...
June 29, 2010

math
39mg radioactive with 1/2 life is decay total in 2.5 years. How many mg it remain if half of the amount is decay in 2 years? Thank you!
June 18, 2010

algebra
(3x^2-4x+6) -(-2x^2 +4) The signs change for the 2 and 4 ____________________when you distribute the -1 ( 5x^2 -4x +2) +( -5x-3) __________________ 5x^2 -9x-1
June 5, 2010

algebra
Solve the equation for r w=Cr^-2
June 5, 2010

math just need someone to check and make sure this
The Office Jet printer can copy Janet's dissertation in 10 min. The Laser Jet printer can copy the same documents in 8 min. If the two machines work together, how long would they take to copy the dissertation? 10*8=80 80/18= 4.4 so it would take 4 min. is this correct?
May 20, 2010

math
Train A is 12 mph slower than train B. Train A travels 230 miles in the same time it takes train B to travel 290 miles. Find the speed of each train.
May 20, 2010

Vectors
if |x|=2 and |y|=5, determine the dot product between x-2y and x+3y if the angle between vector x and y is 60deg.
May 14, 2010

Vectors
A triangle has vertices A(2,3,7), B(0,-3,4) and C(5,2,-4) A) determine the largest angle in the traingle b) determine the area of of the triangle pls tell me how to solve the problem
May 14, 2010

Vectors
Cross product of vector: If axb(cross product)=(2,0,1) and bxc= -4,0,-4 solve magnitude of axb times magnitude of b x c |a x b| x|bxc|
May 14, 2010

Vectors
the vector a-5b and a-b are perpendiculat. If vector a and b are unit vectors, then determine axb
May 13, 2010

Vectors
Using a vector diagram explain why it i easier to do chinups when your hands are 30cm apart instead of 90cm apart. (Assume the force that is excerted by your arms are the same in both cases
May 13, 2010

9th grade
find the slope of the line? (-1/2, 2/3) and (3/2,14/3)
May 12, 2010

litureature
According to the analyses of the stories you were asked to read, "A Pair of Silk Stockings" best represents literary
May 12, 2010

biology
which group of seed producers are the largest, most massive and oldest in the world? angiosperms or gymnosperms?
May 11, 2010

algebra
Graph: y = x - 6
May 11, 2010

math Please helpppp
evaluate r^2-3 when r=-7
May 9, 2010

English Essay
Directions: We are doing a problem- solution essay so I chose to right about Cyberbullying. It's supposed to be six paragraphs. So after your finished reading this could you please give me a comment on it, and a letter grade thanks. Cyberbullying Cyberbullying is a very ...
May 8, 2010

statistics
what is the range of the values 2.0, 3.7, 4.9, 5.0, 5.7, 6.7, 8.5, 9.0? what is the median, mean, and mode?
May 8, 2010

College Finance
Aunt Sally's Food Inc. is considering expansion. Sally has paid $100,000 for a marketing study to assist in the potential valuation. The study indicates that the new product will have sales of $1,500,000 per year each year for the next 6 years. However, existing product ...
May 6, 2010

Finance
Aunt Sally's Food Inc. is considering expansion. Sally has paid $100,000 for a marketing study to assist in the potential valuation. The study indicates that the new product will have sales of $1,500,000 per year each year for the next 6 years. However, existing product ...
May 6, 2010

Algebra
solve using the quadratic formula 2x^2 +6x-3=0
May 6, 2010

Math
Today Jamal had a spelling test. There were 21 words on the test. Jamal spelled two-thirds of them correctly. How many words did Jamal spell correct?
April 28, 2010

Math
Tameka's mother made fish fries for lunch. She made fish ice cream for dessert. It takes 6 small fish to make 1 1/2 cups of ice cream. How many fish does it take to make 4 cups of ice cream?
April 28, 2010

205 Critical Thinking
What do you think about this statement? Inductive and Deductive claims such as all,none, or some, impact the assertions od argument.
April 25, 2010

algebra
how do you find the solution set to 7/w=8/w - 1/3?
April 25, 2010

English.
That was not really helpful. I think I got it anyway.
April 18, 2010

English.
What am I suppose to do? I chose House M.D. as my show. I don't understand what this assignment is asking exactly. Essay Assignment (Essay 2) Now that you have summarized a television series, go back and examine the characters. How does the television show portray 1) race...
April 18, 2010

algebra 1
1) Can you write a binomial in standard form with degree of zero? Explain. 2)Canyou write a binomial with a degree of 3? Explain. Can you help me answer this question please.
April 14, 2010

communications
This is homework for communications class, and I'm not sure what the hell I need to do. I need to get a good grade, because I'm not doing to well. Please help. Here is what to do. Using I language Practice using I language. Use it at work, school, home with your family...
April 11, 2010

geography / 8 grade
I am looking for Japan Now. Ethnicity, languages, religion, education,male/female roles and expectations,type of gvt.,foreign aid,and financial status. I need any magazine or newspapers sources can you help me find these information please.
April 8, 2010

his 125
if the 14 Points were actually followed could World War II have prevented? Even without the League of Nations would the reforms Wilson advocated for foreign relations have worked?
April 4, 2010

geogrraphy
Does Japan has foreingn aide?
April 3, 2010

break even analysis
13. Healthy Foods, Inc., sells 50-pound bags of grapes to the military for $10 a bag. The fixed costs of this operation are $80,000, while the variable costs of the Grapes are $.10 per pound. A .What is the break-even point in bags?
April 2, 2010

geography
I am doing project about Japan.On the section of Government/history-I have to find and write about taxes I searched but did not find anything talk about taxes .Can you help me please? thank you
April 1, 2010

world geography
what the difference between landforms and historical lanndmark
March 30, 2010

world geography
I am doing project about Japan what is historical landmarks means?what to write ?
March 30, 2010

law
Which one of the following is an example of a leading question? 1. What time did you administer the medication? 2. How long have you worked at West End Hospital? 3. Did you see Dr. Martin in the patient's room on the morning in question? 4. Isn't it true that you never...
March 20, 2010

Chemistry
A sample of benzene, C6H6, weighing 3.51 g was burned in an excess of oxygen in a bomb calorimeter. The temperature of the calorimeter rose from 25.00 C to 37.18 C. If the heat capacity of the calorimeter is 12.05 kJ/K, what is the molar energy of combustion for benzene? Also...
March 17, 2010

english
so if i wrote what happened 10 years before i use preterit or past perfect? please...
March 15, 2010

english
I would say "for the first year"
March 15, 2010

english
I would like to know if I begin my story "The man was remembering how, ten years before, he had given a party..." I talked of what happened in past perfect or preterit ex: for the first in solitary confinement he suffered / or / he had suffered the bet have ...
March 15, 2010

english
I know what I wrote doesn't mean anything
March 15, 2010

english
PRETERIT it is a tense I use it in: I was young I went to ... I bought a present
March 15, 2010

english
I don't speak english (every day)it is my second language that's why I asked you that...
March 15, 2010

english
hello :) I wrote a story with preterit in that story the man talks of what happened 10 years before (It's a bet, he should be ruined finally when the other man finished his bet , he waives the money) what are the tenses which I have to use? so please help me
March 15, 2010

english
***Can you correct me the tenses?***
March 13, 2010

english
nobody??
March 13, 2010

english
please? If you want I can help you on or in french( i'm) and spanish
March 13, 2010

english
Hello! I had to read a novel and do a work about it I told what I read Can you above all correct me the tenses? The narrator, an old banker, was remembering how, fifteen years before he had given a party. There had been many clever men, they had talked of capital punishment. ...
March 13, 2010

FRENCH
Mme, this helps alot. Merci beaucoup.
March 9, 2010

FRENCH
Could explain the Pronoms Complement D'objet Direct. Thanks for your help.
March 9, 2010

hospitality
identify the major trans related to diversity and explain their effects on the hospitality industry
March 4, 2010

biology /check please
1-What phase are daughter cells in as a result of mitosis? -Anaphase 2- During what phase of mitosis do centromeres divide and the chromosone-mes move toward their respective poles? -prophase 3- Wchich phase of mitosis is the last phase that chromatids are together? -anaphase ...
February 28, 2010

biology can someone check
1) What phase are daughter cells in as a result of mitosis? answer: Anaphase 2)During what phase of mitosis do centromeres divide and the chromosomes move toward of their respective poles? answer: prophase 3)Which phase of mitosis is the last phase that chromatids are together...
February 28, 2010

Biology/help please
1) What phase are daughter cells in as a result of mitosis? answer: Anaphase 2)During what phase of mitosis do centromeres divide and the chromosomes move toward of their respective poles? answer: prophase 3)Which phase of mitosis is the last phase that chromatids are together...
February 28, 2010

biology
1) What phase are daughter cells in as a result of mitosis? answer: Anaphase 2)During what phase of mitosis do centromeres divide and the chromosomes move toward of their respective poles? answer: prophase 3)Which phase of mitosis is the last phase that chromatids are together...
February 28, 2010

biology
1) What phase are daughter cells in as a result of mitosis? answer: Anaphase 2)During what phase of mitosis do centromeres divide and the chromosomes move toward of their respective poles? answer: prophase 3)Which phase of mitosis is the last phase that chromatids are together...
February 28, 2010

BIOLOGY
1) What phase are daughter cells in as a result of mitosis? answer: Anaphase 2)During what phase of mitosis do centromeres divide and the chromosomes move toward of their respective poles? answer: prophase 3)Which phase of mitosis is the last phase that chromatids are together...
February 28, 2010

biology
What structure is produced when spindle fibers radiate from centrioles? Can you help please?
February 28, 2010

Math
graphing method to solve linear programming problem. z=8x+12y 40x+80y=560 6x+8y=72 x=0y=0 Is there a short cut to find the mmaximum without using the graph?
February 27, 2010

Math
Thanks Reiny
February 27, 2010

Math
using echelon method 4x-2y=9 20x-10y=27 pls help with problem. Once I get 24x -2y 36 I'm confused after that.
February 27, 2010

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