Wednesday
April 23, 2014

Posts by Cecilia


Total # Posts: 109

Chemistry
Why does Cl- have a larger ionic radius than Ca2+ ?

Chemistry
Why does Cl- have a larger ionic radius than CA2+ ?

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 th...

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 th...

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

math
Whats Ñ

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

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

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.

math
i need help in math can someone help me

Economics
just confused with part c

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...

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

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...

LIFE ORIENTATION
yes

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

Biology
It only brought me back up to this page.

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.

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.

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???

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 t...

physics
ehich of the following is an example of projectile motion?

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

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?

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

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

9th Grade Biology
How do macromolecules carry out the function of life?

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?

chemistry
Vapor pressure ___________ as the temperature of the liquid in equilibrium with it increases.

chemistry
Vapor pressure ___________ as the temperature of the liquid in equilibrium with it decreases.

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.

ALGEBRA :)
its it 44in and the little 2

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

ALGEBRA :)
oh sorry = 60?

ALGEBRA :)
I REALLY DON KNOW

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

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.

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.

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 _________.

Biology
What are the 7 properties that all living things share?

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

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

social studies
Where is Friday before Wednesda?

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!! (:

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

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!!!??

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

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

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???

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!

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!

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?

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. (:

7th grade 3D math
the answer is lwh

Algebra II
Factor Completely: x^2-2x-99

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?

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"...

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 ...

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 ...

Statistics
Thanks!

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?

geography/spanish
What does "llanura costera del pacifico" mean?

Geography
...................................................................................................................................................................................................................Thanks...............................................................

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.

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

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?

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?

elementary
What's the question?

elementary
Yes, you should!

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?

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

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! ;)

social studies
Oh so is it b then? Thank you for helping me!

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 legislat...

social studies
Thank you so much! :)

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 l...

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

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

technology... please help!
Okay, thank you!!

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?

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

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

social studies
stars mark the capital of a place. dots mark a city.

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

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

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

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! =)

unscramble
erupt and explode????? are you studying volcanoes???? =)

7th grade math
divide 5 by 16.

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!

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!

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?

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

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

CRITICAL THINKING
How can a person distinguish between the prejudicial and nonprejudicial use of rhetorical devices?

math
Thank you.

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....

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)

math
yes i do now - thank you again - i can go to sleep now!! bye thanks

math
5 hours

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