Friday
October 31, 2014

Posts by cecilia


Total # Posts: 111

Physics
A bicyclist climbs a hill 17 m tall and then coasts down the other side without pedaling. If the cyclist’s speed was 2.5 m/s at the top, what is it at the bottom (ignoring friction)?
October 6, 2014

IB Maths SL
let f(x)= (g(x)/h(x) where g(2)=18, h(2)=6, g'(2)=5 and h'(2)=2. Find the equation of the normal to the graph of f at x=2.
May 27, 2014

Chemistry
Why does Cl- have a larger ionic radius than Ca2+ ?
November 20, 2013

Chemistry
Why does Cl- have a larger ionic radius than CA2+ ?
November 20, 2013

Geometry: Ms. Sue or Steve or someone help please?
Given a triangle ABC with A(6b,6c) B(0,0) and C (6a,0), prove that the medians of the triangle are concurrent at a point that is two thirds of the way from any vertex to the midpoint of the opposite side. I'm not sure how to prove this. I tried and when I got to finding ...
October 24, 2013

Geometry
Given a triangle ABC with A(6b,6c) B(0,0) and C (6a,0), prove that the medians of the triangle are concurrent at a point that is two thirds of the way from any vertex to the midpoint of the opposite side. I'm not sure how to prove this. I tried and when I got to finding ...
October 24, 2013

Chemistry
What does a change in the color of precipitate over time when a mixture of two solutions is combined with a reagent indicate?
October 22, 2013

math
Whats Ñ
September 17, 2013

LIFE ORIENTATION
IDENTIFY AND DESCRIBE 3 Environmental health hdzards that cause ill health and disasters within your community
March 31, 2013

physics
If a solid is stretched or compressed beyond the point that it can return to its original shape it has passed its
November 16, 2012

Grand Canyon University
Show that 480 W of power is expended by a weightlifter when lifting a 60-kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s.
October 27, 2012

math
i need help in math can someone help me
October 13, 2012

Economics
just confused with part c
September 7, 2012

Economics
Suppose the U.S government decides that the incomes of dairy farmers should be maintained at a level that allows the traditional family dairy farm to survive. It therefore implements a price floor of $1 per pint by buying surplus milk until the market price is $1 per pint. Use...
September 7, 2012

health
D because with a positive attitude you can help improve your physical health and also boosts your mental health
August 3, 2012

physics
Heat gained = Heat loss Let final temperature be x, Specific heat of Iron: 0.12 cal/g°C = 502 J/kg °C Specific Heat of Water: 4186 J/kg °C Heat gained by water = mass x specific heat capacity x change in temperature =100(4186)* (x-25) =(418600x-10465000)J Heat lost...
April 3, 2012

LIFE ORIENTATION
yes
March 25, 2012

geometry
if angle aob=4x+15 and aoc=3x+25, find the degree measures of angle aob and angle aoc
January 24, 2012

Biology
It only brought me back up to this page.
April 19, 2011

Biology
What 'EXPERIMENT' did Craig Venter & Francis Collins do in the Human Genome Project? Any links would be great! I've found a lot of info. on what it is, but I'm looking for info on what they did to get there.
April 19, 2011

Grand Canyon University
Show that 480 W of power is expended by a weightlifter when lifting a 60-kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s.
April 6, 2011

English
In Great Expectations, Pip is talking to the 'mysterious sailor' that is at his house. He asks the man "What floor do you want?" and the man replies "The top, Mr. Pip." What does this mean???
March 26, 2011

southuniversity
You have been hired as the marketing manager. Research and identify major approaches of how innovations like these are adopted by consumers. Discuss how the marketing strategy for the car needs to rapidly move through these processes. Who or what are the key groups that need ...
February 25, 2011

physics
ehich of the following is an example of projectile motion?
December 15, 2010

cultural diversity
I need help with identifying the difference in the three main groups, muslim, arabs, and christians where can I go to get some extra help
December 12, 2010

Physics
a boy sledding down a hill accelerates at 2.4 miles per second squared. if he starts from rest, in what distance would he reach a speed of 8.0 miles per second?
December 2, 2010

math
8 boxes of 1000 counters is greater than less than, or egual to 1,000
September 23, 2010

9th grade biology
How do macromolecules carry out the function of life within a cell?
September 8, 2010

9th Grade Biology
How do macromolecules carry out the function of life?
September 8, 2010

chemistry
A solid that has a high melting point and conducts electricity in solution is a(n) ______________ solid. Im not sure what the answer is it molecular?
September 8, 2010

chemistry
Vapor pressure ___________ as the temperature of the liquid in equilibrium with it increases.
September 7, 2010

chemistry
Vapor pressure ___________ as the temperature of the liquid in equilibrium with it decreases.
September 3, 2010

chemistry
What concentration of aqueous CaCl2 solution freezes at -10.2ºC? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.
September 1, 2010

ALGEBRA :)
its it 44in and the little 2
August 31, 2010

ALGEBRA :)
nd what about triangle;b =8 in..,h=11 ???
August 31, 2010

ALGEBRA :)
oh sorry = 60?
August 31, 2010

ALGEBRA :)
I REALLY DON KNOW
August 31, 2010

ALGEBRA :)
GIVE THE AREA OF THE FIGURE DESCRIBED. RECTANGLE; L=12CM , W=5CM HOW SHOULD I GET THE RESULT?
August 31, 2010

Chemistry
What is the freezing point of an aqueous 2.25 m potassium nitrate (KNO3) solution? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.
August 26, 2010

statistics
H,T,T,H,T,H,H,H,T
August 24, 2010

Chemistry
What is the freezing point of a solution made by dissolving 450 g of ethylene glycol (C2H6O2) in 550 g of water? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.
August 21, 2010

Chemistry
The solute molecules mixed with the solvent molecules in a solution cause the freezing point of a solution to be ______ than it is for an equal volume of pure _________.
August 21, 2010

Biology
What are the 7 properties that all living things share?
July 24, 2010

Quantitative Research
What is the probability of 59 if the mean is 60 and the standard deviation is 7?
June 13, 2010

social studies
Where is Friday before Wenesday? this is a riddle, pls. help me with the answer.
June 4, 2010

social studies
Where is Friday before Wednesda?
June 4, 2010

Algebra 1
How would you solve the problem (w - 2)^2 ???? So far I've gotten w^2-2w*2-4 Where do I go from here? Have I even gotten what I have right? I understand when I'm with my teacher, but as soon as I got home, I was a little lost. So any help would be great!! THANKS!! (:
April 20, 2010

algebra
Not sure if I'm doing this right Ln(3x-4)-Ln(x+1)=Ln(2) My solution: Ln 3x-4/x+1 =Ln2 3x-4/x+1=2/1 2x+2=3x-4 2=x-4 6=x
April 5, 2010

English
I need a good hook for an essay. The essay's about being a peer for the children at my school who are mantally disabled. My 1st paragraph is about what I do in the class, 2nd is about the kids, & 3rd is about special olumpics. Help PLEASEE!!!??
March 11, 2010

Chemistry
How many moles of oxygen will occupy a volume of 2.5 liters at 1.2 atm and 25 degrees celcius
February 28, 2010

algebra
(x-1)/(2x+3) is the answer because the (2x+7) in the numerator and denominator cancels out.
February 27, 2010

Language Arts
What's a good way to teach the word "Accolade" to the class. I have to make a prsentation that's less than 2 minutes, and teach my classmates the word so that it sticks. Any help???
February 2, 2010

Algebra 1
Like.... You solve it and then change it to the opposite. It's hard to explain now, but Igot it! Thank you guys so much! You're life savers!
September 12, 2009

Algebra 1
Oh!! You don't do the absolute value part until the end!! I get it now! I was changing it at the beginning!! THank you soo much!
September 12, 2009

Algebra 1
I had a quiz in math. The problem is: |4.3+(-7.2)| I got the answer 11.5 and my teachr marked it wrong. When she gave us a chance to fix the errors for half credit, I tried it again. But I KEEP getting the same answer. What am I doing wrong?
September 12, 2009

8th grade
Umm... maybe to remind them that what they did was wrong and that they shouldn't do it. I don't know.... that's a good question. (:
August 25, 2009

7th grade 3D math
the answer is lwh
July 27, 2009

Algebra II
Factor Completely: x^2-2x-99
July 13, 2009

Algebra
if there are 2 cylindrical cans. A label on the small one says it has a volume of 513 grams. the large one was destroyed. the small can's diameter was the same as the large can. large was 1/3 taller than the small can. what is the volume of the large can?
January 27, 2009

social studies; AP US
I agree with you! William Jennings Bryan's "Cross of Gold" speech had to do with the issue of bimetallism, which was delivered at the 1896 Democratic National Convention in Chicago. Rudyard Kipling's ideas had to do with the "White Man's Burden"...
January 19, 2009

US History
Oh, yes you're right! I just remembered that Henry Cabot Lodge had traveled oversea's with Teddy Roosevelt so I just assumed he would be different from the others, as they had all been senators. But I didn't make the connection about the war with Spain! And thanks ...
January 19, 2009

US History
1) Which man does not belong in the same group with the others? a. Carl Schurz b. James G. Blaine c. Henry Cabot Lodge d. Albert Beveridge 2) The American record in the Philippines includes all the following, EXCEPT: a. Training Filipinos for self-government b. Development of ...
January 19, 2009

Statistics
Thanks!
December 7, 2008

Statistics
If a 90%, 95% and 99% confidence interval are found for a population mean, how are the three interval estimates related to each other?
December 7, 2008

geography/spanish
What does "llanura costera del pacifico" mean?
November 20, 2008

Geography
...................................................................................................................................................................................................................Thanks...
November 20, 2008

Geography
yeah, I tryed to look these up but my computer wasn't loading well. When it did load, the website didn't show me what I was looking for.
November 20, 2008

Geography
Is there any possible way that someone can give me the answer, I can't find it anywhere!
November 20, 2008

Geography
What is the plain that extends through northern Aregentina, Paraguay, and southern Bloivia? What is the grassy plateau located in southern Argentina between the Andes mountains and the AAtlantic ocean? What is the fertile plain that covers most of central Argentina?
November 20, 2008

torque problem!
A spring (k =819N/m) is hanging from the ceiling of an elevator, and a 5.1-kg object is attached to the lower end. By how much does the spring stretch (relative to its unstrained length) when the elevator is accelerating upward at a = 0.46m/s^2?
November 8, 2008

elementary
What's the question?
October 30, 2008

elementary
Yes, you should!
October 8, 2008

geography
It is too big to carry around, like you can a map. Can you imagine trying to carry a huge globe around in your backpack, when instead, you can carry around a map?
September 15, 2008

social studies
Alrighty...so it is b then! Thanks for helping me! :)
September 15, 2008

social studies
Wait...no...I was looking up what "bicameral" meant and now I'm confused...is the answer d because we have the senate and the house of representatives? Or is it still b? Sorry...I think I just confused myself! ;)
September 15, 2008

social studies
Oh so is it b then? Thank you for helping me!
September 15, 2008

social studies
Sorry...one more question! A feature of the American political system NOT adopted from practice in England is: a)appeal of disputed court decisions to higher courts b) legislative control of government finaces c) local government through town meetings d) the bicameral ...
September 15, 2008

social studies
Thank you so much! :)
September 15, 2008

social studies
Prior to 1763, the British government generally followed a policy of salutary neglect towards the American colonies because it: a) wished to secure the loyalty of the colonies b) lacked a well-organized imperial system c) lacked the power to make laws for the colonies d) did ...
September 15, 2008

7th grade technology... help!
ohhhhhh! okay, that explains a lot! thank you!
September 14, 2008

7th grade technology... help!
Can anyone come up with an acronym for COPYRIGHT ??????????
September 14, 2008

technology... please help!
Okay, thank you!!
September 14, 2008

technology... please help!
I have to write a poem and a song about computer graphics and animation. I'm really bad at this so can someone give me an idea?
September 14, 2008

social studies
A phisical maps shows water and landforms. (Such as mountain, rivers, etc.)
September 14, 2008

social studies
Athens, Greece. =) I really hope this helped you!!!!
September 14, 2008

social studies
stars mark the capital of a place. dots mark a city.
September 14, 2008

social studies
Pacific, Atlantic, Indian, Arctic, Southern Oceans. I had this question before! =)
September 14, 2008

social studies
The Map Key or Legend. (I'm not sure if I spelled that right)
September 14, 2008

technology
I need to write a song and a poem about computer graphics and animation. Does anyone have any ideas about that?
September 14, 2008

social studies
I had this question in Geography! It is north. If you need to remember that, my teacher taught us a way to: Cancer would come first in a dictionary, so it comes first on a map. I hope this helps! =)
September 14, 2008

unscramble
erupt and explode????? are you studying volcanoes???? =)
September 14, 2008

7th grade math
divide 5 by 16.
September 12, 2008

7th grade advanced math
Not off the top of my head, I don't. I'm in 7th grade advanced math and we get to use calculators. Can you use a calculator? If so, you can enter this. I have a scientific calculator, it's really nice to have aroud for probblems like that!
September 10, 2008

english
count the number of lines then divide by two... then you'll see how much half a page is. or you can just stop when it looks like you've written half a page!
September 8, 2008

social studies
Your flight takes off from the eastern United States at 10 AM. What time will you arrive on the west coast, if the flight takes six hours?
September 8, 2008

maths for science
use the quotient rule to differentiate the following function f(x)=(1+In(x))/(x)
May 29, 2008

maths
differentiate the following function using the composite rule h(x)=e^x(4-x)/6
May 29, 2008

math
Thank you.
March 9, 2008

math
This problem has to do with exponential models. The question says, you deposit $1600 in a bank account. Find the balance after 3 years for each of the following situations. The first one says: 1. The account pays 2.5% annual interest compounded monthly. 2. The account pays 1....
March 9, 2008

maths
consider the sequence given by U1=-0.3 Un+1=Un+0.7 i)state what type of sequence this is. ii)write down the first 4 terms of the sequence. iii) find a closed form for sequnce. iv) use the closed form to find the nth term of the sequnce when Un=36.1 (n=1,2,3 ETC)
November 2, 2007

Pages: 1 | 2 | Next>>

Search
Members