Wednesday
August 20, 2014

Posts by David


Total # Posts: 1,634

pigskin geography
Are there more than 3 cities which will be visited by a team from a bordering state? Question 1 week 10 November 11, 2007
November 12, 2007

pigskin geography
Are there more than 3 cities which will be visited by a team from a bordering state? Question 1 week 10 November 11, 2007
November 12, 2007

homework ath physics
how to become en expert?
November 7, 2007

Mathematics
I have to show that for any (pi)A, Sin(A)squared + Cos(A)squared = 1. I don't really get the question... am I supposed to multiply A by pi? Even if that weren't the case, I still do not comprehend how the squared sine and cosine will cancel out... I'd really ...
November 6, 2007

math
3/7x+5=8. I tried to cross-mulitplied and I got 3x+35=8. I divided -27 by 3 and I got -9. Is this right?
November 1, 2007

math
A particle moves with constant speed of 3m/sec along path y=3x^2 What is the acceleration of the particle at x=1.5m? I know that Velocity is y'=6x Somebody please help!
October 25, 2007

physics
A particle moves with constant speed of 3m/sec along path y=3x^2 What is the acceleration of the particle at x=1.5m?
October 25, 2007

physics
i did GM5850/4.15E6^2= 5850*217183.3^2/ 4.15E6 my V was 217183.3 then when i solved for GM i got 1.9574E37 and pluged that into the weight equation and it was marked wrong. someone please help
October 18, 2007

Art
Can anyone provide help with finding a site that shows how American pop culture has influenced art throughout the world?
October 10, 2007

math
The summ of two numbers is two. THe difference between eight and twice the smaller number is two less than four times the larger. Find the two munbers.
September 30, 2007

Ethics
First, we must demand more of our leaders. If we do not get the result you want, change your leaders. Emphasize education. A good education is an important way to improve the odds for any children. The whole community needs to make education a top priority. The importance of ...
September 27, 2007

Ethics
What are some solutions the the economic challenges of Aferican Americans?
September 27, 2007

Ethics
Why are racial imbalances in our economy difficult to overcome?
September 27, 2007

Math/Metric system
I need to know how to make conversions and compare within the metric system of measurement. Such as 0.75L. is equal to how many mL. I have to do problems like that with length, weight, andvolumn.
September 25, 2007

Religious Eduction
Shahadah, Salah, Zakah, Sawm, and Hajj. en(dot)wikipedia(dot)org(forward slash)wiki(forward slash)Five_Pillars_of_Islam
September 22, 2007

English
searching for evidence in the novel Being There by Kosinski that the author dislikes humans and Americans
September 15, 2007

Physics
oh but yeah u first use the equation v=v(0)+at and then use y=v(0)t+1/2at^2. Set v(0) to zero each time and a to either -9.8 m/s if it is going upward or 9.8 m/s if it is going downward
September 12, 2007

grammar
I have homework in grammar and the title is Giving Instruction in Reponse to Expository Writing Prompts so I have choose an electroni apppliance with which I am familiar with and write directions for a friend that explain an important procedure in the use of the appliance and ...
September 9, 2007

algebra 3
how do i solve square root of 72x to the 3rd power?????
August 23, 2007

Math
I need help with the following problem: Directions: Express each answer in simplest form in terms of the given variable. Problem: An angle has measure Xº. Find the average of the measures of a complement and a supplement of the angle.
August 20, 2007

Finacial
Develop a set of pro forma financials (income statement and balance sheet only) for the next fiscal year-end using the percent-of-sales method. Assume that the company's sales have increased by 15%.for Exxon corp. balance sheet and income statement can be found on the web....
August 6, 2007

math
how can you simplify this?? log10(10^.5) log10 as in log base 10 By definition: Log_10[10^(x)] = x ok, but it is 10 to the 1/2 power, not x how would you simplify it then? That's then the special case of x = 1/2: If for all x: Log_10[10^x] = x, then for x = 1/2 this ...
July 14, 2007

eth 125
There are those who profess to be bible thumping right wing Christians who are the most intolerant and prejudicial people anywhere. usually, knowledge, education, and understanding can promote acceptance and tolerance. People need to develope a live and let live attitude. ...
June 30, 2007

Accounting
What is an example of present value concept? If you win the lottery, and they tell you will get 20,000 a year for 30 years. What is that worth in present dollars? $36000.00
June 28, 2007

Algebra
How do you arrive at the answer for: what is the value of t in the following problem? 9 = t + 7s subtract 7s from both sides.
June 22, 2007

Accounting
How might borrowing $1 million long-term and investing the proceeds in inventory affect cash and net working capital? Borrowing $1 million and investing the proceeds will increase the cash and net working capital by $1 million less the interest charges.
June 10, 2007

Accounting
How would paying out a $2 million cash dividend affect cash and net working capital? It seems to me that paying out a $2 million cash dividend will diminish the cash and net working capital by $2 million plus the costs of paying this dividend.
June 10, 2007

COM 125
can you please help me paraphrase this paragraph. The eradication of al-Qaeda is as much an intelligence and law enforcement challenge as it is a purely military campaign. While special operations, commando raids, and air strikes are important weapons against bin Laden's ...
May 28, 2007

humanities
To accept the old into the modern
April 28, 2007

math
The amount of money in an account with continuously compounded interest is given by the formula A=Pe^rt , where P is the principal, r is the annual interest rate, and t is the time in years. Calculate to the nearest hundredth of a year how long it takes for an amount of money ...
April 22, 2007

science
Put a pencil straight down into a glass of water. Notice whether the pencil looks bent. Now tilt the pencil and note how its apparent bending changes. How does this illustrate why light from objects near the horizon is refracted more strongly? Is the atmosphere thicker looking...
April 16, 2007

work force
a force of 10 pounds is required to stretch a spring of 4 inches beyond it's natural length. assuming hooke's law applies, how much work is done in stretching the spring from its natural length to 6 inches beyond its natural length. what i did so far: F(x)=kx 10=k4 k=5...
April 13, 2007

calculus
how do you calculate the instantaneous rate of change. is that the derivative. also: if f is the antiderivate of (x^2)/(1+x^5 such that f(1)=o then f(4)=? How would i find the integral of that? i don't even know what the first step is to get the answer. also, on this ...
April 13, 2007

calculus
is average rate of change and average value the same or will you get a different answer for each this is calculus so it's the mean average. it's using the formula and integrating. I dont understand your question, but I can assure you that average rate of change and ...
April 12, 2007

sum geometric series
what is the sum of geometric infinite series 3/2+ 9/16+ 27/128+ 81/1024=.... i know the formula is S=a/(1-r) my teacher, he usually transforms into a formula of the sum series and finds out a and r.but i don't how to do that. the pattern i saw is 3/2 + 3^2/2^4 + 3^3/2^7+ 3...
April 9, 2007

calculus pleas pleas help, derivates
what is the derivative of x/tan(x) and find f'(pi/4) f'(x)=(tanx-x*sec(x)^2)/(tanx)^2 That's the quotient rule for derivatives or as my teacher says: Low,low, low D'High, minus High d'low all over low square that's the quotient rule. It's a song ...
April 5, 2007

calculus please help
what is the integral of x/(1+x^2)^2 dx This is a question of a past AP exam of calculus BC i know i have to use the substitution method where u=(1+x^2), du=2xdx. I have to find the integral but i'm just focused on the coefficient because i get a different answer for that ...
April 4, 2007

chem
confused about this one. 2 samples of water of equal volume are put into dishes and kept at room temp for several days. the water in the first dish is completely vaporized after 2.8 days while the water in the second dish takes 8.3 days to completely evaporate. What can you ...
March 29, 2007

cavtities
i have to get my cavity removed and i was wondering if you can tell what they do. Will the dentist give you me injection? Will it hurt? How long does it take? What do they do to fix the cavity. Also can you give me couple of websites where a practice exam will be provided for ...
March 22, 2007

chem help
a scuba diver breathing normal air descends 100m of depth, where the total pressure is 11 atm. What is the partial pressure of oxygen that the diver experiences at this depth? Can someone help out on this question? Make a ratio: 11atm/1atm= P/partial pressureO2 at surface ...
March 19, 2007

chem
when a gas is collected over water, is the gas pure? No. It has water vapor in it.
March 19, 2007

calculus totally confused
find a first degree polynomial function p(1) whose value and slope agree with the value and slope of f at x=c. i think you use taylor series for this f(x)=4/sqrt(x), c=1 i'm totally confused on how to do it. i know you find the derivative but how do i get the function. ...
March 13, 2007

Chemistry
Sodium cyanide, empirical formula NaCN, is a solid which melts at 564 degrees C to give a liquid that conducts electricity. it also dissolves in water to give a conducting solution. Use these properties to deduce the type of bonding that holds this compound together. It must ...
March 11, 2007

music search help!
I was wondering if someone could help me find who were the popular women singers in the 1920s, 1930s, 1940s, and 1950s. You know the style of music that was playing in the movie Saving private ryan when the soldiers were waiting for the germans to come. You know that scene? ...
March 10, 2007

math
how do you check an answer if 4(j-7)=12 4j-28=12 -16=4j j=4 is this rite?how do you check if rite? It is wrong. When you add 28 to both sides, one gets 4j= 40 j= 10 in baseball, the pither's mound is 6 in. more than 20 yd from home plate . how many feet is this
March 1, 2007

chem
Consider the following reaction: 2 CH3OH + 3O2 to form 2 CO2 + 4 H20 Each of the following molecular diagrams represents an initial mixture of the reactants. How many CO2 molecules would be formed by complete reaction in each case? How do I use the molecular diagrams to help ...
March 1, 2007

history
what is socratic method? i heared a lot of different stuff!! IDEAS PLZ Thank you for using the Jiskha Homework Help Forum. This is "thinking critically" and that can be done by using guided questions. Here is a good definition: http://en.wikipedia.org/wiki/...
March 1, 2007

math--pre alg
not sure i did right 3(f+2)+9=13+5f 3f+6+9 = 13+5f +9 3F+15 = 12+5F GOT MIXED UP SOMWERE HELP 3f +6 +9 = 13 + 5f 3f + 15 = 13 + 5f 2f = 2 f = 1 drwls is correct You are doing OK up to this point: 3f + 6 + 9 = 13 + 5f Now combine any like terms. (We can combine 6 + 9 to equal ...
February 28, 2007

computer help commands
i'm in intro to technology class and i have to find the definition of the command "hostname" you use on the computer and i already found it so no problem but i also have to find examples and i looked on the internet such sites as computerhope and others. but i ...
February 24, 2007

Physics HELP!!!!!!!!
With: 2mg=mv3^2/r-mv1^2/r V3 being the speed at the top and V1 being the speed given at the bottom You get: V3^2=2gr+V1^2 sqrt(2*9.8*3.1+16^2) sqrt(316.76)=17.8
February 21, 2007

Math HELP!!!
x2 + x + -3.75 = 0 Please... I'm horrible at algebra. x=7.5 and x=-8.5 THANK YOU SO MUCH
February 19, 2007

Business
In planning a new item, a manufactuer assumes that the number of items produced x and the cost of dollars C of producing these items are related by a linear equation, Projections are that 100 items will cost $22,000 to produce. Find the eqaution that relates C and x This is ...
February 13, 2007

Math
Driving down a mounain Jim finds that he has descended 1800FT in elevation by the time he is 3.25 mi horizontally away from the top of the mountain find the slope of his decent to the nearest hundreth. I am sorry that you did not get a response to your post earlier. You need ...
February 13, 2007

science
What steps do you think can be taken to reduce the harmful effects of human activities on biogeochemical cycles? Which businesses would these changes impact the most? To assess the harmful effects of human activities, you first need to know about the biogeochemical cycles. ...
February 8, 2007

chemistry
I submitted this question earlier... can anyone help me pls. This question is about the polymer made by polymerizing this compound: _ CH2=CH-CH-OH _ | _ CH3 Please identify the monomer unit - there should be 3... also, what type of polymerization is involved in forming this ...
February 5, 2007

chemistry
This question is about the polymer made by polymerizing this compound: CH2=CH-CH-OH | CH Please identify the monomer unit - there should be 3... also, what type of polymerization is involved in forming this polymer? sorry - the compound is.... CH2=CH-CH-OH ________| _______CH3
February 5, 2007

help me improve my sentence
It is interesting to see how these three Internet sources all cover the same story, but with different methods and techniques to persuade the reader to believe the media’s perspective of things. how can i say this in a different way. It is interesting to see how each of ...
January 28, 2007

my second paragraph bias essay
this is my second paragraph essay for media bias essay M.S.N.B.C news articles are known for being conservative. Some of those who write for this TV station seem to have a conservative slant. For some events, they will only mention one side of the argument and slightly mention...
January 27, 2007

introduction to essay
This is my introduction for my media bias essay. The sources i used is from the internet of B.B.C, F.O.X, M.S.N.B.C news. Do i just refer them as "tv news articles" or "internet news" the reason i have dots in between is because the site says that i can'...
January 27, 2007

please read my introduction for media bias.
This is my introduction to my essay for media bias in television news. The primary source of political information in America is the media. [Media bias is a way to represent different people in a certain way based on their own views.] A certain degree of political bias exists ...
January 27, 2007

statistics definition
i have to find definitions and describe 208 words in my statistics class and for one of them it says: describe the deviation from a pattern of a graph. i don't actually get what it's asking me. i don't think it's pattern becuase i already have the definition ...
January 26, 2007

articles govenment
This is from CNN Bush did get support from some Republicans. "The president consulted with the best military minds ... and came up with a new strategy, and I think it deserves a chance," said Sen. John Cornyn, R-Texas. "This is our last chance. The consequences ...
January 25, 2007

yes or no question
hi i have to do a project where i have to find media bias between two articles for government. and i was wondering if it is okay if i could just post little pieces of those two articles and ask for help. when i read the two articles, it doesn't seem like it's bias but ...
January 25, 2007

stats please help test tom
When a computerized generator is used to generate random digits, the proability that any particular digit in the set {0,1,2, . . .,9} is generated on any individual trial is 1/10-0.1. suppose that we are generating digits one at a time and are interested in tracking ...
January 24, 2007

gov't campaigns
in debates what are some things that help/hurt either president candidate? i think by not answering questions and when president candidates look like they don't know what they are talking about. in the overall presidential campaigh, what are some things that can help or ...
January 23, 2007

stats help please
Suppose that one of every 100 people ina certain community is infected with HIV. You want to identify an HIV-positive person ina study of an experimental new drug. How many individuals would you expect to have to interview in order to find the first person who is HIV-positive...
January 23, 2007

stats help please
Suppose that one of every 100 people ina certain community is infected with HIV. You want to identify an HIV-positive person ina study of an experimental new drug. How many individuals would you expect to have to interview in order to find the first person who is HIV-positive...
January 23, 2007

stats again please help
When a computerized generator is used to generate random digits, the proability that any particular digit in the set {0,1,2, . . .,9} is generated on any individual trial is 1/10-0.1. suppose that we are generating digits one at a time and are interested in tracking ...
January 23, 2007

stats help plz ASAP
Suppose that one of every 100 people ina certain community is infected with HIV. You want to identify an HIV-positive person ina study of an experimental new drug. How many individuals would you expect to have to interview in order to find the first person who is HIV-positive...
January 23, 2007

pressure
is light pressure more easy to localize than deep pressure or is the other way around What do you mean light pressure and deep pressure?
January 21, 2007

senses, stimulus
what is the stimulus of taste? do i just say when something touches your tongue. i don't know how to explain it. for smell, i put odors and chemicals. is that right? for vision, i put light, color, movement? i need help on taste, itching, pain, pressure, temperature ...
January 21, 2007

politcs essay
i'm doing a project where i have pick three newsstations from the internet such as abc, nbc, cbs then i have to pick a story from the politics section and i picked an article on saddam hussein killing. after reading the similar stories on all three news stations, i have to...
January 20, 2007

British & American Government Question
In comparing the British and American systems of government,which statement is true: A. Britain's government was created by a single document that is very similar to the U.S. Constitution. B. The House of Lords is the most powerful branch of Britain's government. C. ...
January 18, 2007

interest groups again
what is a campaign contribution? why do interest groups choose this as a technique to their advantage. this is what i have: Campaign contributions is getting financial help from resources or buying support from candidates. getting support helps the groups to also get publicity...
January 15, 2007

interest groups
what is litigation? why do interest groups choose this as a technique to get what they want? Litigation is to take in issue to court for a trial. There are a couple of reasons for interests groups to do this. First they get a legal opinion on a particular topic, and second ...
January 15, 2007

mass and human body
By mass, most of human body is composed of what? nitrogen carbon water hydrogen I think the answer is water. Am I correct? http://www.madsci.org/posts/archives/may2000/958588306.An.r.html so am I correct in saying that it is water? I don't need percentages. Well if it'...
January 14, 2007

gov't help please
why is getting access to a ballot an obstacle to cross for minority parties in order to win elections. i looked on the internet and read that they have to be nominated and stuff but how is it more harder for minority parties than it is on majority parties bases on ballot ...
January 9, 2007

us gov't politics
i'm doing a free response fro U.S government and politics and I am reading a graph where i have to describe a trend. one of the trend i noticed was that there was a decrease of ten percent of democrats in 1962-1964 of partisan identifications in US. I have to explain why ...
January 9, 2007

solving for x
y=e^x how do i solve for x. i use the LN process right. i forgot how to do that ln(e ^ x) = x Leo, you have merely stated an identity. David was solving y = e^x for x, which would be x = ln y Thanks reiny.
January 9, 2007

please help calculus
find the volume of the solid formed by revolving the region bounded by y=e^x, y=0, x=o and x=1 about the y axis by using the shell method, i got v=2*pi int(o to 1) (x)(e^x) dx and my teacher said the answer is e/2 but i keep getting a different answer Are you sure it is to be ...
January 9, 2007

calculus help plz
a force of 1250 pounds compresses a spring 5 inches from its natural length. find the work done in compressing the spring 8 additional inches. f=kd 1250=k5 k=250 then what do i do. the answer choices are: a.3250 b.21,125 c.18000 d.2000 e. none of these Work = (1/2)* F * ...
January 8, 2007

calculus help work
a force of 1250 pounds compresses a spring 5 inches from its natural length. find the work done in compressing the spring 8 additional inches. f=kd 1250=k5 k=250 then what do i do. i have to do this the calculus way, not the physics way. by using integrals the answer choices ...
January 8, 2007

calculus help lttle question
find the area of the regin bounded by the graphs of y=-x^2=2x=3 and y=3. i don't need help solving the problem and but i am a little confused. ok the graph is a parabola and i drew a parobla with y= 3. now when find the area, am I finding the area on the top, above y=3 or ...
January 8, 2007

calculus showed work
find the area of the rgion bounded by the graphs of y=x^3-2x and g(x)=-x i drew the graph and half of the graph is above the xaxis and the other half is below the axis. so the integrals i came up with are two because i broke them up and i combined the answers at the end: ...
January 6, 2007

human physiology help please
hi human physiology: what is a cerebral lobe not visible in an ordinary external inspection what is a vein in the dura mater roughly parallel to the longitudinal fissure what is the portion of the thalamus that passes through the third ventricle. I think is is the hypothalamus...
January 6, 2007

science
(a) 24.02 g C ---------------------- = .20881 x 100%= 115.0322 g BeC2O4-3H2O Ans: 20.881% (b) (i) (ii) PV=nRt -> V=nRT --- P
January 4, 2007

FRENCH
does anyone know any good french translating sites where i can tarnslate long sentences with out getting giberish?i lost my dictionary:(so i need to translate liek a page for tommorow
December 19, 2006

please help me calc. have test tom
d/dx integral from o to x of function cos(2*pi*x) du is first i do the integral and i find the derivative right. by the fundamental theorem of calculus, if there is an integral from o to x, don't i just plug the x in the function. the integral of the problem is cos*2*pi*) ...
December 13, 2006

confused calc
dy/dx=2y^2 and if y=-1 when x=1, then when x=2, y=? (you already posted this, but i still don't get it) dy/dx = 2y^2 Integrating...y=2/3 y^3 + C put 1,-1 into the equation, and solve for C c=-1/3 so the equation is y=(2y^3)/3-1/3 then i have to find what y equals when x=2...
December 12, 2006

calc
d/dx integral from o to x of function cos(2*pi*x) du is first i do the integral and i find the derivative right. by the fundamental theorem of calculus, if there is an integral from o to x, don't i just plug the x in the function. the integral of the problem is cos*2*pi*) ...
December 12, 2006

limits
what is the derivative of e^(3*ln(x^2)) i keep getting 6/x * e^(3*ln(x^2)) but that's not one of the multiple choice so am i doing something wront. also, what is the limit of (1-cosx)/(2*(sinx)^2) as x approaches zero. is the answer zero or nonexistent The derivative of e...
December 9, 2006

increasing decreasing calc
f(x)=x^3=12x-24 f'(x)=3x^2+12=0 3x^2=-12 x^2=-4 what is x. would it be x=-2 and 2 because i have to find the interval where the function is increasing or decreasing. i already know how to find the answer but i just got confused on finding the zeros first <<f(x)=x^3=...
December 9, 2006

derivative am i right or wrong
what is the antiderivative of 1/(x^2-2x+2)? does antiderivative mean find the derivative of the function or integrate it. is the answer ln(x^2-2x+2) or is-2(x^2-2x+2)^-2. These are part of the multiple choices. antiderivative is the integral. so would the answer be ln(x^2-2x+2...
December 9, 2006

calc
the volume of a cylindrical tin can with a top and a bottom is to be 16*pi cubic inces. if a minimum amont of tin is to be used to construct the can, what must be the height, in inches, of the can? volume of cyliner is pi*r^2*h do i like take derivitive of something since it ...
December 8, 2006

calculus help again
if f'(x)=cos x and g'(x)=1 for all x, and if f(0)=g(0)=0, then the limit x--->0 fo function f(x)/g(x)= okay, so f(x)=sinx g(x)=x and the f(0)=g(0)=0 is also satisfied and equals o. so the limit x-->o of sinx/x= is the answer nonexistent according to the ...
December 7, 2006

calc help showed work
If the function f has a continuous derivative on [0,c], the the integral(o to c) of f'(x)dx= a)f(c)-f(0) b)absolute value (f(c)- f(0)) c) f(c) d)f'(x)=c e)f"(c)-f"(0) My work: so the the answer to the integral is f(x) and when find the answer from o t0 c, it ...
December 7, 2006

trustee government
hi where can i find more information about trustees that play a role in the congress. i already know the basic definition but i need to know what they do when it comes to the congress. do they hold property in the government or something Please post the basic definition that ...
December 6, 2006

Statistics
Please help me figure them out. 1. In the 105th Congress, the Senate consist of 55 Republicans and 45 Democrats. If a committee is formed by randomly selecting four different senators, what is the probability that they're all Republicans? 2. It's common for public ...
December 5, 2006

finding c: calc
let f(x)=square root x. if the rate of change of at x=c is twice its rate of change at x=1, then c=? what???? i don't get get it. to begin with, i took the derivative if that helps which is 1/(2*sqrtx) . f'(x) = 1/(2*sqrtx) is correct f'(x=1) = 1/2 The problem is ...
December 5, 2006

calc volumes
the basse of a solid S is the region enclosed by the graph of y=square root (ln x), the line x=e, and the x-axis. if the cross sections of S perpendicular to the x-axis are squares, then the volume of S is. how do i find the side of the squares. because i got square root(lnx) ...
December 5, 2006

Pages: <<Prev | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | Next>>

Search
Members