Sunday
September 21, 2014

Posts by samantha


Total # Posts: 1,333

math
Explain how you know that 45 divided 0 cannot be done.
April 27, 2009

HELP, Please, DUE TOMORROW!!!
It used to live in the southwestern United States. When it died, minerals replaced the wood fibers inside of it. What is it?
April 21, 2009

Math :(
thank you so much now i can turn it in with the right answer!!!!
April 21, 2009

Math :(
When football was played in Florence, Italy, in 1530, there were 30 more layers on the field than there are in football games in the United States today. How many players were on the field for each team in 1530?
April 21, 2009

SCIENCE!! YIKES!!
THANK YOU!!
April 21, 2009

SCIENCE!! YIKES!!
It used to live in the southwestern United States. When it died, minerals replaced the wood fibers inside of it. What is it?
April 21, 2009

Math
12.5% or 12 and a half%
April 21, 2009

Social Studies
Describe the political, social, economic conditions in the U.S in the 1800's
April 19, 2009

Chemistry
Determine the correct oxidation number assigned to carbon in CaCO3
April 18, 2009

geometry
can someone help me woth solving special segments in a circle?
April 14, 2009

History
Can you please explain these last two things for me. Thank You One way governments pay for war is to raise taxes (which in turn reduces civilian spending and investment). What does the part in the brackets mean? Most wars create zones of intense destruction of capital such as ...
April 10, 2009

History
what does least amount of read tape mean?
April 10, 2009

History
Can you please explain to me what these two things mean? I don't even have an idea. Thank you War generally induces patriotic citizens to work harder for less compensation. War also sometimes clears away outdated infrastructure and allows economy-wide rebuilding, ...
April 10, 2009

math
c+5=18 ----- -3 c=?
April 7, 2009

Math
k thanks
April 6, 2009

Math
see we done that and i get it but im still a bit confused try giving me a problem and i will figure it out.
April 6, 2009

Math
Could someone please explain to me how you get answers when you add a negative number to a negative number or a positive number to a positive number or a negative and positive number added together, because my teacher tried explaining it to me, but I'm completly lost. The ...
April 6, 2009

Math
thanks for your help.
April 5, 2009

Math
When you add a positive integer and a negative integer, you sometimes get a negative result and sometimes get a positive result. Is the same true when you multiply a positive integer and a negative integer?
April 5, 2009

Geography
Ok thanks.
March 24, 2009

Geography
well i thought latin america was only made up of one continent, plus my wordsearch only has three latters and the first letter begins with an O.
March 24, 2009

Geography
Its ok..haha...is there only one?
March 24, 2009

Geography
How many continents are in Latin America?
March 24, 2009

Geography
Country north of Central America. If you can help me out with this, it will be well appritiated thanks.
March 24, 2009

Geography
Thanks.
March 24, 2009

Geography
Well I'm doing a crossword puzzle for my class, and it has 6 letters and the first letter begins with a R and the fourth letter is an I...if that helps any.
March 24, 2009

Geography
Do you know what's Brazilian coastal city? If you can help me out with this, it will be well appritiated thanks.
March 24, 2009

Geography
Thank you very much I knew that was it haha.
March 24, 2009

Geography
is it peninsula?
March 24, 2009

Geography
Well, I'm doing a crossword puzzle for school and it has 9 letters, and the 5th latter is an N, if that helps any..
March 24, 2009

Geography
Type of landform between the Gulf of California and Pacific Ocean. If you can help me out with this, it will be well appritiated thanks.
March 24, 2009

Language Arts
_________ __________ help you "see" or "envision a play" (drama) you read. If you could help me out with this answer it will be well apriciated, thanks.
March 16, 2009

college math
one number is 8 more than twice another. their product is 8 more than twice their sum. find the numbers
March 14, 2009

Reading
What stinks when alive but smells good when dead?
March 13, 2009

Chemistry
How would you calculate delta H for the following reaction: 2P + 5Cl2 -> 2PCl5 Given: PCl3 + Cl2 -> PCl5 Delta H=-87.9 kJ 2P + 3Cl2 -> 2PCl3 Delta H=-574 kJ I have no clue how to do this since I was absent. Can someone help?
March 3, 2009

math
convert these decimals into common fractions 0,33
March 1, 2009

maths
help me simplify this 3/4*1/5*3/10 and 6 2/3 / 10/21
February 28, 2009

maths
how do i convert this decimal 5,2 into a common fraction
February 26, 2009

maths
how do i convert decimal fraction into common fraction
February 26, 2009

5th grade science
How much faster does sound travel through water than through air in one second?
February 24, 2009

Philosophy 130
What ought you to do for a pregnant woman who asks your help in getting to the hospital, according to your understanding of the main ethical theories, i.e. egoism, universal consequentialism(utilitariansim), and Kantian deontological theory? Suggested length: 2-4 paragraphs.
February 24, 2009

Chem
Some very effective rocket fuels are composed of lightweight liquids. The fuel composed of dimethylhydrazine (CH3)2N2H2 mixed with dinitrogen tetroxide was used to power the Lunar Lander in its missions to the moon. The two components react according to the following equation...
February 24, 2009

General ?
What does non-profit faith based facility mean?
February 21, 2009

algebra
5.A) Kwame sells ice cream cones at the country fair. He has to rent the equipment for $29 and spend $0.43 on ingredients for each cone. How many ice cream cones must he sell at $1.10 each in order to make a profit? A)Wrie an inequality that represents how many ice cream cones...
February 16, 2009

French
Can someone check my letter? We had to write it even though not all students got their letters for some reason, so it is kind of short. Also, can someone tell me some ways to add the future tense and the subjunctive a little more? I want to show what I have learned since the ...
February 2, 2009

chemistry please
if i want to find the molarity of a solution that is: 5mL of a 3.521 x 10^-5 M solution, and filled to the 50mL line with ethanol, would this be: (3.521 x 10^-5)(.04L ethanol)?
February 1, 2009

French
How would you say 'hidden talents' in French? Would it be something like "Est-ce que tu as des talents caches?" (With the accent, I'm on a laptop and it won't let me type it"
January 30, 2009

Chemistry
Vinegar is 5% acetic acid. If the density of household vinegar is approximately 1.00 g/mL, how many grams of acetic acid are contained in 10.0 mL of vinegar? So I started out with 10.0 mL of HC2H3O2 then multiplied by 1.00g/1mL. What do I do next? Is it done there?
January 28, 2009

physics
Which is denser, ice at 0 degrees C or water at 4 degrees C? i know water is densest at 4 degrees C, but im not sure if ice is denser.
January 11, 2009

Science
During photosynthesis, plants produce something that humans need for survival. What is it?
January 8, 2009

Science
I am a large mass of frozen water. I can move rocks and boulders. I move very slowly, but i cause great changes on Earth. What am I?
January 8, 2009

Chemistry/Physics
yes but T is affected volume and pressure changes according to the ideal gas law
January 7, 2009

Chemistry/Physics
A Sample of gas is held at constant pressure in a cylinder moved by a closed piston. If the volume is halved, how will the new Vrms speed compare with the old one? a) square root of 2 times greater b) the same c) 2 times greater d) 4 times greater e) none i think its e because...
January 7, 2009

social studies
thank you
January 7, 2009

social studies
which of the following statements best describes kennedy's point of view? a.the only way that people can influence their government is by writing letters to their elected officials. b.you are not a citizen unless you vote. c.voting effects everyones future. d.government ...
January 7, 2009

algebra
Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 mph and train B is traveling at 110 mph. Train A passes a station at 3:10 pm. If train B passes the same station at 3:40pm, at what time will train B catch train A? 4:30 pm I am ...
January 7, 2009

algebra
Thank you sooo much!
January 7, 2009

algebra
Amy paid $62.18 for shoes during a 15% off sale. What was the regular price? $71.51 is this correct?
January 7, 2009

algebra
On 3 consecutive passes, a football team gains 5 yards, loses 28 yards, and gains 41 yards. What number represents the total net yardage? 5-28+41 18
January 7, 2009

Algebra
I am having problems figuring out some of my word problems for this week. Could someone check these? The equation y=-1777x+27,153 can be used to predict the number of gun deaths in the U. S. x years after 2000, that is, x=0 corresponds to 2000, x=2, corresponds with 2002, x=5...
January 7, 2009

math
yes so the answer would be 61 correct?
January 7, 2009

science-physics
All objects emit ______ radiation. Is it incident? The frequency of the radiation of most objects is a) below b) in the middle of c) greater than he frequency of the visibile light spectrum? I think its below as most objects can not be seen by visible light.
January 4, 2009

spanish
how do u say estoy in the yo form in the past
December 16, 2008

6th grade
I need help unscrambling these letters to form two words: inenidj tcain They go along with the phrase ______ _____and Persia.
December 15, 2008

math
A box contains 4 coins: a penny, a nickel, a dime, and a quarter. It costs a dime to reach in and take a coin. What is the expected value of this game?
December 12, 2008

spelling
grass:lawn::toss:? does anyone know the answer
December 9, 2008

Science
oh water thanks
December 2, 2008

Science
I can be three different states of matter, but not at the same time. I am necessary for life, but i can also destroy life. I can be under your feet, around your body, or over your head. What am I?
December 2, 2008

French
I had the duck story too :) We do these weekly but I like to get them checked when I do them in a hurry because I make twice as many mistakes! Merci Mme
December 2, 2008

French
Can someone check my paragraph please? Merci! It's about Thanksgiving :) Mes vacances sont passées assez ennuyeuses, alors j'ai inventé des nouvelles vacances! Le mercredi dernier, j'étais rentrée à la maison quand mes parents ont...
December 2, 2008

Physics
A uniform, spherical bowling ball of mass m and radius R is projected horizontally along the floor at an initial velocity v0 = 6.00 m/s. The ball is not rotating initially, so ω0 = 0. It picks up rotation due to (kinetic) friction as it initially slips along the &#...
November 19, 2008

Math Check
Yes thanks so much!
November 19, 2008

Math Check
is the 2nd equation 2x + 2y = 112 I don't get 4... I'm sure the 1st equation is x+y = 110 but I can't figure out the 2nd.
November 19, 2008

Math Check
Are the equations for these questions right? 1) Erik has 2 part-time summer jobs. For Job 1 he gets $9/hr on weekdays and for Job 2 he gets $12/hr for weekends. Last week he worked 23 hours and he earned a total of $231. How many hours did he work on the weekend? 9x+12y = 231 ...
November 19, 2008

Math
Kris is starting a delivery business in Ottawa called Kris' Speedy Express. He charges $5, plus $1.50/kg to deliver a package throughout all of Ottawa including all outside communities. His competition, John's Same Day Deliveries charges $6 per delivery plus $1.00/kg. ...
November 19, 2008

Australian History
Can someone please tell me the punishments onboard the first fleet to Australia?
November 19, 2008

Physics please help
Given a simple pendulum of length r and mass m, determine the oscillation period T if the perturbation angle θ is very small (i.e. θ < 10degrees). How can I derive an equation for period using just that info?
November 17, 2008

Physics
Given a simple pendulum of length r and mass m, determine the oscillation period T if the perturbation angle θ is very small (i.e. θ < 10degrees). How can I derive an equation for period using just that info?
November 17, 2008

Physics
Given a simple pendulum of length r and mass m, determine the oscillation period T if the perturbation angle θ is very small (i.e. θ < 10degrees). How can I derive an equation for period using just that info?
November 17, 2008

Physics
Are you getting 5.28 J for the total energy?
November 14, 2008

Physics
Also for position I'm getting 0.145 when I use this equation => x = -.013 sin 34.6 t + .0640 cos 34.6 t
November 14, 2008

Physics
I don't get it. I'm getting x = 0. Is that supposed to be right?
November 14, 2008

Physics
A 215 g mass attached to a horizontal spring oscillates at a frequency of 5.50 Hz. At t=0s, the mass is at x= 6.40 cm and has vx =- 45.0 cm/s. Determine: a) The Maximum acceleration to 3 significant digits. - I calculated this to be 7.64 but it keeps saying I have the wrong SD...
November 14, 2008

Physics
The two blocks in the figureoscillate on a frictionless surface with a period of 1.5s. The upper block just begins to slip when the amplitude is increased to 38cm. What is the coefficient of static friction between the two blocks?
November 13, 2008

Physics
Suppose that one oscillation of a swinging lamp takes 5.5s. What maximum speed does the lamp have if its maximum angle from vertical is 3.0degrees? I first found L to be 7.51m. That was right. Now, I calculated the angular frequency of the pendulum to be 1.14. I'm pretty ...
November 13, 2008

science
what are some key characteristics of fungi?
November 11, 2008

math
350*(6/100) = 21 350+21 = $371
November 11, 2008

physics
Use 1 of your kinematic equations twice. vfinal^2 = vinitial^2 + 2ad. First you want to find the speed of the drag racer right when the parachute opens. vfinal^2 = vinitial^2 + 2ad. Substitute 0 for vinitial^2 and take the square root of 2(17)(402). That becomes your initial ...
November 11, 2008

Physics
There is no kinetic energy unless the object is oscillating.
November 11, 2008

Pre-Algebra
what?
November 9, 2008

Pre-Algebra
In a-c, explain what would happen to a figure if you transformed it using the given rule. a. (3x, 6y) b. (x+2, y+1) c. (2x, 2y +5)
November 9, 2008

Pre-Algebra
A rectange has dimensions of 1 and 6. Another rectangle was drawn from it using a scale factor of 1.5. A. The area of the large rectangle is how many times the area of the small rectangle? B. The perimter of the large rectangle is how many times the perimeter of the small ...
November 9, 2008

Physics Really Need Help Please
I found 583 for the first one which is right. I have no idea how to do the 2nd and 3d question please help!
November 7, 2008

Physics Really Need Help Please
At time t=0 a grinding wheel has an angular velocity of 26.0 rad/s. It has a constant angular acceleration of 25.0 rad/s^2 until a circuit breaker trips at time t = 2.50 s. From then on, the wheel turns through an angle of 440 rad as it coasts to a stop at constant angular ...
November 7, 2008

Physics
I don't understand the question. What's the displacement for either of those parts? What equation should I use?
November 7, 2008

Physics
At time t=0 a grinding wheel has an angular velocity of 26.0 rad/s. It has a constant angular acceleration of 25.0 rad/s^2 until a circuit breaker trips at time t = 2.50 s. From then on, the wheel turns through an angle of 440 rad as it coasts to a stop at constant angular ...
November 7, 2008

MATH
well i think that is called the y-intercept form
November 6, 2008

MATH
How do you write an equation in standard form? Ex.How would you write this in standard form? y+1=x+2
November 6, 2008

5th Grade student teacher: Needs ur help....
What fun activity could I use to to teach 5th grade students about the Constitution?
November 6, 2008

9th
6a+4 = -8 6a = -8-4 a = -12/6 a = -2
November 5, 2008

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