Sunday
September 25, 2016

Posts by Julie

Total # Posts: 1,113

chemistry
122.66 mL (Height times area of the circle -- 12.5*1.25^2 -- 1.25 is the radius).
October 21, 2009

Geometry
Can I get help starting this exercise:- Let triangle ABC be such that AB is not congruent to AC. Let D be the point of intersection of the bisector of angle A and the perpendicular bisector of side BC. Let E, F, and G be the feet of the perpendicular dropped from D to line AB...
October 20, 2009

Math
I am a parent of a 10 year old, 5th grader and my hubby and I just can't figure these out to help her. Anyone?? Thanks in advance. 27 = 8k divide k = ?? 5a - 3a = 18 a = ?? 12r - 4r = 48 r = ?? g = 7(10-3) g = ?? These are finding the unknown number in each equation. ...
October 18, 2009

Math
Two students are talking after school: What is the average of your grades in Math for September? 4.6 That is impossible since the year just started. You could not possiblly have that many grades. What was the doubting student thinking of of the possible grades teachers give ...
October 15, 2009

Math
Many tires come with 13/32 inch of tread. The first 2/32 inch wears off quickly(say during the first 1000miles). From then on the tire wears uniformly. A tire is considerd "worn out" when on 2/32 inch of tread is left. a. how many 32nds of an inch of usuable tread ...
October 13, 2009

algebra
what are the three rules for expontents?
October 13, 2009

Science
14 letter word for "scientists do their experiments more than once so they can reduce the effects of chance errors. This is called conducting _________
October 12, 2009

3rd grade Math
Writing in Math - How can estimating help you add two-digit numbers?
October 12, 2009

physics
A small boat is headed a harbor 32km directly northwest of its current position when its suddenly engulfed in heavy fog. The captain maintain a compass bearing of northwest and a speed of 10km/h relative to the water.The fog lift 3.o h later and the captain notes that he is ...
October 8, 2009

3rd grade Math
Representations - Draw a number line. Make sure the following numbers are on your number line: 1,472; 1,560; 1,481. Are we over thinking this problem? Are they just looking for a number line with the above number listed from least to greatest?
October 1, 2009

french
how do you unscramble laigerne?
September 23, 2009

algebra
thank you, i also fixed the spelling!
September 22, 2009

algerbra
the problem is x+6-2x+9, how would i go about solving it a simpiler expression would be greatly apprciated1 the x's get me confused
September 22, 2009

socials
ok sorry about that i was just kinda annoyed
September 22, 2009

socials
i have one algerbra ? below
September 22, 2009

socials
not to be rude but this sara girl has gotten help on like 3 ? now and i'm waiting for someone to help me with mine i don't have all day to wait while this girl gets all her homework done
September 22, 2009

algerbra
i have to simply the expression 3x squared-10+4x+8-x squared, so far i have this 1x squared+4x-2 3x squared-1xsqaured+4x -10+8 2x squared+4x-2 i know its kinda confusing becasue i type sqaured so many time, am i on teh right track?how do i find the answer now? i'm so ...
September 22, 2009

pre-calculus
An open box is to be made from a flat piece of material 18 inches long and 5 inches wide by cutting equal squares of length xfrom the corners and folding up the sides. Write the volume Vof the box as a function of x. Leave it as a product of factors, do not multiply out the ...
September 18, 2009

English
WHat is the climax of The Seems: the Glitch in Sleep?
September 14, 2009

anatomy/biology
what substance passes through a cell membrane using a solute pump?
September 10, 2009

gen 300
I think Ms. Sue is right to say what she said. The information he posted says that time management is an example of something he could use. Obviously, he has a problem managing his time or he wouldn't be looking for his answers online... or he has a problem concentrating, ...
August 24, 2009

algebra
(x+5)over 6= 1- (x+5) over 7 (x+5)/6= 1- (X+5)/7 I know you have to get a CD of 42 but I can't get the write answer.
August 4, 2009

axia
explain the difference account payable and trade credit
July 15, 2009

HCA270
how can using a bank cash management service reduce opportunity cost for a healthcare organization?
July 13, 2009

12th grade - English (World Mythology)
The website is: zarathushtra . com /z/gatha/dji/forward . htm What is Tagore’s main argument? Find a sentence or two that make up Tagore’s thesis statement and cite it here. What distinction does Tagore make between “blind obedience” and “the path of ...
June 16, 2009

General Chemistry
Thanks! I actually eventually got the right answer after about 45 gruelling minutes. But, mine is different than yours 3H2O + C2H5OH + %I3- ==> 15I- + CO2 + CHO2- + 11H+
June 3, 2009

General Chemistry
Im having trouble balancing this redox rection in acidic solution. I dont know how to balance reactions in which one reactant splits up into two products. C2H5OH(aq) + I3-(aq) --> I-(aq) + CO2(g) + CHO2-(aq) + H+(aq) I know I split it into C2H5OH --> CO2 + CHO2 + H+ and ...
June 3, 2009

chemistry
Thanks. I also have a similar question about cis and trans isomers.why is the heat of formation lower for a trans isomer? the only thing i could think of is that the dipole moment is 0.But does this have anything to do with the heats of formation?
May 30, 2009

chemistry
Why is there a difference in the heats of formation of CF4 and CCl4? I know that the bond length of CCl4(C--Cl) is longer than that of CF4(C--F), does this affect the heat of formation. Heat of formation are -225.709kcal/mol(CF4) and -28.120kcal/mol(CCl4).
May 30, 2009

Chemistry
If 0.110 mol of liquid H2O and 40.5 g of solid Al2S3 are reacted stoichiometrically according to the balanced equation, how many moles of solid Al(OH)3 are produced?
May 21, 2009

Chemistry
Thanks, i figured it out using the mol ratios of NaBr and Cl2.
May 21, 2009

Chemistry
If 0.720 mol of gaseous Cl2 and 390 mL of 0.641 M aqueous NaBr are reacted stoichiometrically according to the balanced equation, how many moles of gaseous Cl2 remain? Round your answer to 3 significant figures. 2NaBr(aq) + Cl2(g) → 2NaCl(aq) + Br2(l)
May 21, 2009

mangerial econ
The MorTex Company assembles garments entirely by hand even though a textile machine exists which can assemble garments faster than a human can. Workers cost $50 per day, and each additional laborer can produce 200 more units per day (the same for each additional worker). ...
May 20, 2009

6th grade english
thank u
May 19, 2009

6th grade english
What is another name for myth
May 19, 2009

Math
Thank you!
May 11, 2009

Math
I am working on 5th grade math...can you help with the following question? In a roll of 50 dimes, 8 were minted before 1983. What percent of the dimes in the roll were minted before 1983?
May 11, 2009

Chemistry
A weather ballon is prepared to lift off at the North Pole. The balloon is filled with 15000 L of helium gas. The conditions at the launch site are 760 mm Hg and 0 degrees celsius. The balloon is then released and rises to a height of 20,000 m. The atmospheric pressure ...
May 2, 2009

Finance
Dean and Jerry formed a partnership, agreeing to share profits and losses equally. Dean will receive a guaranteed payment of $48,000 per year. The partnership has $240,000 net income from operations for the year, before considering the guaranteed payment. What is Dean's ...
April 20, 2009

health care assignment help
Can you view a word document? I want to have my introduction paragraph checked.
April 17, 2009

PSY
How can masculine and feminine traits be described using the contimuum masculinity-femininity?
April 16, 2009

7th grade algebra
-3.5(2-3n)-2.5n
April 14, 2009

Economics
Depression
April 14, 2009

Math
if (a,b)=1 and a b=c^n, show that a and b are nth powers
April 8, 2009

physics
a 0.40kg ball is thrown vertically upward with a speed of 30m/s. The ball reaches a height of 40m. What is the energy dissipated due to air friction?... please help i don't know what to do:(
April 7, 2009

Psychology
Best way to describe biopsychology and its theoretical framework. Thanks
April 7, 2009

health
2000 word full sentence research paper on Autism controversies example.( mercury and vaccinations) an introduction and a thesis statement.A body of supporting evidence and in-text citations, a conclusion, a reference list at least 5 -7 sources. Does this help?
April 1, 2009

Math
A random variable X has a cumulative distribution fnc given by 0 for a<0 G(a)={a^2 for 0<=a<1 1 for a>=1 find the probability density function.
March 25, 2009

Data Management
Find the variance if X~N(0.02) and 95% of the data lies between -7 and 7.
March 24, 2009

History
What distinguishes an American from a European according to Hector St. John Crevecoeur? Why?
March 18, 2009

Math 115
If $9,000.00 is deposited into an account paying 4% interest compounded annually (at the end of each year), how much money is in the account after 5 years? (Round to the nearest cent.)
March 14, 2009

Math
how do you find relative error?
February 28, 2009

Math
Ryan estimates the measurement of the volume of a popcorn container to be 282 cubic inches. The actual volume of the popcorn container is 289 cubic inches. What is the relative error of ryan's measurement to the nearest thousandth?
February 28, 2009

physics
If a hair dryer is rated at 800W, how much energy does it require in 3 min?
February 18, 2009

physics
If an 80kg sprinter can accelerate from a standing start to a speed of 10 m/s in 3 s, what average power is generated?
February 18, 2009

physics
A 40 N block lifted straight upward by a hand applying a force of 40 N has an initial kinetic energy of 12J. If the block is lifted 0.5 m, how mauch work does the hand do? What is the block's final kinetic energy?
February 18, 2009

Psychology
What is the difference between absolute continuity and differential continuity? Search does not help as it deals with math not the psychology side. Thanks
February 8, 2009

psychology
What is the difference between absolute continuity and differential continuity?
February 8, 2009

Math
After a cyclist has travelled 2/3 of her route, she gets a flat tire.Finishing the trip on foot, she spends twics as long walking as riding.How many times faster does she ride than walk? I got 4 times faster is that right?
February 5, 2009

MATH
if you look at a normal line equation it is y=mx+b the m is the slope/constant/first difference whatever you would like to call it. The b is the y intercept(where the line crosses the y axis). Therefore in your question 3x=2y+14 the slope (m) is 2 and the y intercept (b) is 14.
February 4, 2009

9th grade
They are both the same. If you look at a line equation, y=mx+b the rate of change and slope is the m. If you are looking at a graph then to find the slope/rate of change you choos two points usually one after another and then see how many places horizontally (run) over to the ...
February 3, 2009

Probability
A random variable N has a cumulative distribution function given by F(x)={ 0 for x<1 0.2 for 1<=x<2 0.5 for 2<=x<3 0.8 for 3<=x<4 1 for 4<=x Find the mean of N.
February 1, 2009

Probability
A random variable N has a cumulative distribution function given by F(x)={ 0 for x<1 0.2 for 1<=x<2 0.5 for 2<=x<3 0.8 for 3<=x<4 1 for 4<=x Find the mean of N.
February 1, 2009

math
how do we find the least residue of 1789 (mod 4), (mod 10), (mod 101)
February 1, 2009

PLZZZ I NEED HELPP
can I please have some1 help me with this problem
February 1, 2009

Probability
A random variable N has a cumulative distribution function given by F(x)={ 0 for x<1 0.2 for 1<=x<2 0.5 for 2<=x<3 0.8 for 3<=x<4 1 for 4<=x Find the mean of N.
February 1, 2009

Probability
There are three investment plans for your consideration. Each plan calls for an investment of $25,000 and the return will be one year later. Plan A will return $27,500. Plan B will return $27,000 or $28,000 with probabilities of 0.4 and 0.6, respectively. Plan C will return $...
February 1, 2009

Algebra
The keyword is "wins" so it's a positive number. The answer is 500 or +500
February 1, 2009

Biology!!! HELP
Does anyone understand what "reciprocal genetic exchange" is? Is it just crossing over during prophase in meiosis?
January 31, 2009

math
(x+20) + (x-30) + 3x = 180 Then solve for X
January 31, 2009

Caplan
A virus-scanning program is checking every file for viruses. It has completed checking 40% of the files in 300 seconds. How long should it take to check all the files
January 29, 2009

medicine
Thanks so much. Almost everything I need to answer is in that article. Thanks again.
January 28, 2009

medicine
Does the AMA ethics poinion mention encryption as a technique for security?
January 28, 2009

math
find all positive integers for 15x+18y=17.
January 28, 2009

math
find the 5 diff. ways a collection of 100 coins-pennies, dimes, and quarters- can be worth exactly worth $4.99.
January 27, 2009

physics
nvm i did bad arithmetic... stupid mistake thank you
January 27, 2009

physics
it seems i got it incorrect i had put 47.44722
January 27, 2009

physics
thank you=]
January 27, 2009

physics
The figure below shows a test charge q between the two positive charges. Find the force (in newtons) on the test charge for q = 1 µC. Give a positive answer if the force is to the right and a negative answer if the force is to the left. 2µC....-3cm-....q...-2cm-......
January 27, 2009

University of Phoenix
Write a 350- to 700-word response addressing the following points: Compare and contrast two theories on the causation of crime. Choose one crime trend outlined in the text and explain its relationship to one of the crime theories you just compared. Relate this crime trend to ...
January 23, 2009

Probability independence
A fair die is rolled twice with the two rolls being independent of each other. Let M be the maximum of the two rolls and D be the value of the first roll minus the value of the second roll. Are M and D independent?
January 22, 2009

Probability
Suppose a random variable X has a cumulative distribution function given by F(a) = {0 for a<0, 1/2 for 0<=a<1, 3/5 for 1<=a<2, 4/5 for 2<=a<3, 9/10 for 3<=a<3.5, 1 for 3.5<=a. a. Find the probability mass function for X. b. Find the probability ...
January 21, 2009

Probability
Suppose a random variable X has a cumulative distribution function given by F(a) = {0 for a<0, 1/2 for 0<=a<1, 3/5 for 1<=a<2, 4/5 for 2<=a<3, 9/10 for 3<=a<3.5, 1 for 3.5<=a. a. Find the probability mass function for X. b. Find the probability ...
January 21, 2009

Probability
A fair die is rolled twice with the two rolls being independent of each other. Let M be the maximum of the two rolls and D be the value of the first roll minus the value of the second roll. Are M and D independent?
January 21, 2009

Probability
A store sells two types of tables: plain and deluxe. When a customer buys a table, there is an 80% chance that it will be a plain table. Assume that whether or not the type of table that one customer buys is independent of the types of the tables that any other customer buys. ...
January 21, 2009

12th grade history
Why did the Roman Catholic reform leaders believe that the fundamental aspect of improving the Church was to enhance the performance of the clergy?
December 17, 2008

English
I am writing an argument paper about brands. I'm not necessarily trying to state that brands are bad, but instead that people should not have such high regards for brands to the point where human culture is being transformed to accommodate brands instead of the other way ...
December 13, 2008

English
I'm writing an argument paper on brands, and I was wondering whether anyone knows a website where I could find data/analysis on Abercrombie and Fitch (for example, how much they spend on making products in comparison to how much they sell....and maybee perhaps this ...
December 13, 2008

math
Prove that if a subset C of R*R is symmetric with respect to both the x-axis and y-axis, then it is symmetric with respect to the origin.
December 7, 2008

NEED HELP FAST!!!-SCIENCE
i need help on scinence homework
November 9, 2008

college chemistry
If I find the energy emitted by an excited sodium atom when it generates a photon.and then, When i have to find the energy emitted by 1mol of excited sodium atoms at this wvelength do I multiply the first by avogadro's number? 1mol has avogadro number of atoms right?
November 9, 2008

music
How is math used in music?
October 24, 2008

math
can someone please help me with my question below
October 23, 2008

math
can someone please help me, Rob is going to college in Oklahoma which is 680 miles from their his home in Tennessee. He can travel on state highways at 55mph or on the interstate at 70mph. Approximately, how much longer will his trip be if he takes state highways? A. 5 hrs 3 ...
October 23, 2008

college
What is the derivative of: f(t) = e^{t} \mathrm{sech}(t) f(x)=y^3x (natural log) f(x)=sinh(x)tanh(x) f(x)=8sin(5x)arcsinx)
October 22, 2008

algebra
how do you solve pattern equations using input and output values
October 21, 2008

Calculus
1. f(4+h)-f(4)/h 2. (3/(4+h)-2)-(3/2) all over h 3. then im lost
October 21, 2008

Calculus
find the derivative of f(x)=(3)/(x-2) at x=4
October 21, 2008

physics
If the density of a medium is 1000 kg/m3 and the propagation speed is 1540 m/s, the impedance is rayls.
October 19, 2008

math
how to calculate the precentage of calories that come from fat? if for each gram of fat there is nine calories.
October 13, 2008

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