Questions Asked on
August 1, 2011

chemistry
Calculate the equilibrium constant at 25 C for CH4 + 2 H2O > CO2 + 4H2 given: delta G for CH4 = 50.81 H2O = 228.6 CO2 = 394.4 H2 = 0
asked by hal 
HUM
I did not understand this part of my class so here is the question What is media convergence? Provide an example of media convergence and explain the media elements that are being combined. Explain how the combination of media elements in your example may
asked by Kelly 
math
Name the corresponding part if polygon WXYZ polygon PQRS. YZ =
asked by robbie 
Trigenometry
VERY URGENT! PLEASE HELP SOLVE! tan(x)+1=sqrt(3)+sqrt(3)cot(x)as well as sin(2x)= 2 cos^(x) 4cos2(x) = 8sin(x)cos(X)
asked by Rachel 
Algebra
translate to an algabric expression; one more than foru times a number
asked by Carol 
Math
In 1976 a research hospital bought half a gram of radium for cancer research. Assuming the hospital is still exists, how much of this radium will the hospital have in the year 6836 if the halflife of radium is 1620 years?
asked by Kate 
math
Name the corresponding part if polygon WXYZ polygon PQRS. QP =
asked by robbie 
Math
a bag contains 3 red marbles, 5 blue marbles, 2 yellow marbles, and 2 lavender marbles. How many sets of 4 marbles includes at most one of the yellow marbles?
asked by Mark 
MATH
The frequency distribution indicates the heights of 45 male high school seniors. Height(in.) Number of Males 64 2 65 6 66 7 67 9 68 10 69 6 70 3 71 0 72 2 a) Construct a histogram of the frequency distribution. b) Construct a frequency polygon of the
asked by Jen 
annuaties
Sally contributed $500 every six months for fourteen years into an RRSP earning interest at 7.5% compounded semiannually. Seven years after the last contribution Sally converted the RRSP into an RRIF which is to pay her equal quarterly payments for
asked by nikki 
Chemistry
A student actually used 0.847g sample of impure KHP and the endpoint was reached after 19.82 ml of sodium hydroxide solution was added, What is the percent KHP in the unknown to four significant figures.
asked by BEE 
science
'm'gms of carbon reacts completely with 'n'gms of oxygen to produce carbondioxide.The mass of oxygen required to react with 'm'gms of carbon completely and produce carbonmonoxide is
asked by sameena 
Chemisty
How much KNO3 will you have to add to 100 g of water at 40° C to make a saturated solution?
asked by Hannah 
phy132
a taut rope has a mass of 0.180kg and a lemgth of 3.6m.what power must be supplied to the rope to generate sinusoidal waves having an amplitude of 0.1m and a wave length of 0.5m and traveling with a speed of 30mper second
asked by pinne raphael tersoo 
calculus
Use multiplication of power series to find the first three nonzero terms of the Maclaurin series of e^x ln(1 − x).
asked by amber 
Chemisty
In terms of saturation, how would you classify a KBr solution with a concentration of 78 g/100 g of water at 47°C?
asked by Hannah 
physics
Toolkit Block A slides down a ramp whose slope is 45°. An identical block B slides down a ramp whose slope is 60°. Both blocks start at a height of 2 meters. Compare the kinetic energies (KE) of the blocks just before they reach the bottom, assuming
asked by Michael 
english
the boy was penitent and  to the store clerk for stealing the candy
asked by angelita 
physics
A 2.0kg wooden block slides down an inclined plane 1.0 m high and 3.0 m long. The block starts from rest at the top of the plane. The coefficient of kinetic friction between the block and plane is 0.35. What is the speed of the block when it reaches the
asked by angel 
chemistry
Gibbs free energy What is the equilibrium constant at 25 C? deltaG= deltaH  (T(K)+deltaS) deltaS= 121.1 deltaH= 77.36 so at 25 C deltaG = 77.36  (298*(121.1)) deltaG ~ 3.6*(10^4) so my question is: what *is* the equilibrium constant, or perhaps more
asked by J 
Life orientation
5 ways in which the human or environmental problem impacts on the community
asked by Phumzile 
Calculus
A team has been working to convert dieselpowered cars to run just as efficiently on used cooking oil! They want to compare the mileage and speed of their prototype with that of the dieselpowered car. The prototype is 100 meters south of an intersection,
asked by Cynthia 
physics
A car moving at 35 mi/h is stopped by jamming on the brakes and locking the wheels. The car skids 53 ft before coming to rest. How far would the car skid if it were initially moving at 56 mi/h?
asked by Ashley 
HUM
Could you please help me re word this paragraph. I need it to be at least 100 words, but this one that I did was not good enough. Social media sites have affected commerce because people can advertise to thousands of people all at once through different
asked by Kelly 
PHYSICS
The door and the seals on an aircraft are subject to a tremendous amount of force during flight. At an altitude of 10,000 m (about 33,000 ft), the air pressure outside the airplane is only 2.7 x 104 N/m2, while the inside is still at normal atmospheric
asked by Brittney 
accouting
Horton Company, as lessee, enters into a lease agreement on July 1, 2008, for equipment. The following data are relevant to the lease agreement: 1. The term of the noncancelable lease is 4 years, with no renewal option. Payments of 422,689 are due on June
asked by carol 
calculus
A team has been working to convert dieselpowered cars to run just as efficiently on used cooking oil! They want to compare the mileage and speed of their prototype with that of the dieselpowered car. The prototype is 100 meters south of an intersection,
asked by need help! 
Math
In a recent dig, a human skeleton was unearthed. It was later found that the amount of 14C in it had decayed to (1/rt8) of its original amount. If 14C has a half life of 5760 years,how old was the skeleton?
asked by Kate 
comm215
please help me correct my essay. the topic of the essay is:"Why overcrowding of school are causing teacher's to lose their jobs overcrowding? and how teacher layoffs are the result of overcrowding." below is a copy of the essay i wrote... One main concern
asked by Sophia 
Business
Could you please help me re word my paragrah? It needs to be at least 100 words. Media convergence is the merging of mass communications outlets such as television, radio and the Internet along with portable and interactive technologies though various
asked by Kelly 
physics
The door and the seals on an aircraft are subject to a tremendous amount of force during flight. At an altitude of 10,000 m (about 33,000 ft), the air pressure outside the airplane is only 2.7 x 104 N/m2, while the inside is still at normal atmospheric
asked by Anonymous 
math
The DerrMcGee Manufacturing Company plans to build a new $50,000 warehouse seven years from now. They plan to accumulate the $50,000 in an account before beginning construction. If money is worth 7% compounded annually, how much must each year?s deposit
asked by anonymous## 
Math
Bryan and Kim are painting a house. Working together they can paint a house in threefifths the time it takes Kim to paint the house working alone. Bryan takes 15 hours to paint the house alone. How long does it take Kim to paint the house working alone?
asked by Ashley 
math
Find the difference: 7 7/8  3 1/4=?
asked by Anonymous 
Math
Given the bar graph below, create a grouped frequency distribution: Hours per week: 0 1 2 3 Mike 4 5 Don 6 Daniel 7 Jake, Greg 8 Asad 9 Sandra 10 Drake 11 12 Andrea 13 This is what i got, please tell me if i did this correctly :) Hours per week # of
asked by Jen 
management information system
hi theres a bunch of wrong answers in my quiz earlier and i want to know the correct answer, so please help, and this not not my homework..thanks 1.amount of time and attention required is a typical___measure of product performance a. cost b.quality(my
asked by digital city 
algebra
the body mass index ,I,can be used to determine an individuals risk for heart disease. An index less then 25 indicates a low risk. The body mass index is given by the formula,or model,I=700w/h2, where w = weight,in pounds,and H=height,in inches.Jerome is
asked by tommy 
Physics
a car travels at 20km/h for 1.5h, at 30km/h for 2.0h, and at 40kmh for 0.75 h. What is the car average velocity
asked by Jazz 
math
Coach Johnson is 10 years older than Tim. When Tim started football 3 years ago, Coach Johnson was twice his age. How old is Tim now? Numerical Answers Expected!
asked by brit 
Calculus
If $22,550 is invested at 2.95% compounded continuously, how long will it take to reach $50,000 in the account?
asked by Josh 
calculus
Use division of power series to find the first three terms of the Maclaurin series for y = sec x.
asked by ami 
business math
I need help with my economics with calculating the NPV of the cash flows expected in 20062010 using only the 2005 Cost of Capital (don’t worry about increasing costs of capital). Calculate the NPV of the cash flows using the CASH FLOW figures at the
asked by Pupitas 
finance
You purchase a stock at a price of $73, and a year later the price increases to $85. You also received a dividend of $2.50. Calculate the rate of return.
asked by Anonymous 
human resource
CheckPoint: International Staffing Resource pp.646654 in Managing Human Resources Consider the cultural differences inherent in global business as well as the geographic obstacles of home office and remote locations being in different countries. Summarize
asked by Anonymous 
music
how does music and culture influence each other
asked by Anonymous 
business
Could you please help me re write the sentences below. Media convergence is the merging of mass communications outlets such as television, radio and the Internet along with portable and interactive technologies though various digital presentation
asked by Kelly 
accounting
Horton Company, as lessee, enters into a lease agreement on July 1, 2008, for equipment. The following data are relevant to the lease agreement:
asked by sarah 
chemistry
if k>>1 ? Choose the correct answer 1) the equilibrium mix. Will favour product over reactants 2) the equilibrium mix. Will favour reactants over products 3) the equilibrium amounts of reactants and products are equal 4) the reaction is irreversible
asked by marjani 
calculus
determine whether 9xy+16 equals 13 49 y as a function of x
asked by Naomi 
physics, forces and weights
If the aim is to let a 700 kg pump float on the surface of water, how many cylinders ( 50cm*90cm ) containing fresh water should we have ?
asked by khikha 
geometry
how would you solve for x in a 454590 triangle if the hypotenuse is 9 square root 2
asked by bethy 
HUM/111
One of the key controversies in psychology is nature versus nurture. Is this a problem or an issue?
asked by Ully 
algebra
multiply. 3x+3 by 4x^2+4x2
asked by Shay 
algebra
Solve by the elimination method. x+4y=45 x+4y=27 please step by step
asked by seirre 
IGCSE(Maths)
a)The number 19 to the power 100(sexdecillion) is called a 'Googol'!If it takes 1/5 secod to write a zero and 1/10 second to write a 'one', how long would it take to write the number 100 'Googols' in full b)The number 10 to the power of a 'Googol'is called
asked by Muskan 
geometry
Given two spheres, if the volume of the first sphere is 36r, and the volume of the second sphere is 288r, what is the relation of the second radius to the first radius?
asked by sonia 
world history
what were the main similarities and differences between Greek and Roman political structures?
asked by Tess 
chemistry
how to calculate neutrons in 99Tc43
asked by marjani 
Science
If it takes 35s for the tughboat to increse its speed uniformly to 25 km/h, starting from rest. The barge has a mass of 75Mg. The propeller provides the propulsion force F which gives the tughboat foward motion, where as the barge moves freely. Determine
asked by Andrew 
comm215
Why overcrowding of school are causing teacher's to lose their jobs? how is teacher layoffs the result of overcrowding?
asked by Sophia 
math
How do you simplify 4w(9)? would it be 36w?
asked by Kelly 
Math
How long will it take for a 1 g sample of Polonium 210 to lose all but 1/28 of its radioactivity if the halflife is 140 d?
asked by Kate 
geometry
what is the formula for the circumference of a whole circle with two semicircles
asked by pei lei 
Math
Given the bar graph below, create a grouped frequency distribution: Hours per week: 0 1 2 3 Mike 4 5 Don 6 Daniel 7 Jake, Greg 8 Asad 9 Sandra 10 Drake 11 12 Andrea 13 This is what i got, please tell me if i did this correctly :) Hours per week # of
asked by Jen 
physics
Martin caught a fish and wanted to know how much it weighed, but he didn't have a scale. He did, however, have a stopwatch, a spring, and a 5.50 N weight. He attached the weight to the spring and found that the spring would oscillate 20 times in 64 s. Next
asked by Ashley 
algebra
Explain how many miles does it takes to get from home to work, with "distance Formulas?'
asked by Toni 
PhysicsNeed Help fast!
Two converging lenses, each of focal length 15.1 cm, are placed 40.2 cm apart, and an object is placed 30.0 cm in front of the first lens. Where is the final image formed? The image is located... What is the magnification of the system? M =
asked by Megan 
calculus
Recall that a function G(x) has the limit L as x tends to infinity, written lim(x>infinity)G(x) = L, if for any epsilon > 0, there exists M >0 so that if x > M, then G(x) − L < epsilon. This means that the limit of G(x) as x tends to infinity does not
asked by amber 
Math
Okay, I need to find the 101th term of the sequence 5,9,13,17,21... Do I do this: a1 + (n1)d SO... 5+(1011)4 5+(100)4 105x4 420 Did I do this problem correctly?
asked by Meghan 
Math
How long will it take for a 1 g sample of Polonium 210 to lose all but 1/28 of its radioactivity if the halflife is 140 d?
asked by Kate 
Math
Bacteria experiences exponential growth, increasing 17% every hour. If there are 800 bacteria now, in how many hours will there be 2000? How would I go about this problem?
asked by Meghan 
Calculus
put in standard form: 4x^2=36+9y^2
asked by Josh 
HUM
Could you please help me re word my paragrah? It needs to be at least 100 words. Media convergence is the merging of mass communications outlets such as television, radio and the Internet along with portable and interactive technologies though various
asked by Kelly 
Media
Could you please help me re word my paragrah? It needs to be at least 100 words. Media convergence is the merging of mass communications outlets such as television, radio and the Internet along with portable and interactive technologies though various
asked by Kelly 
algebra
if 45ft=9ohms the 75ft= how many ohms
asked by tal 
COM/155 UNIVERSITY COMPOSITION AND COMMUNICATION I
Write six original sentences in which pronouns are used in a consistent manner. What strategies might a writer use to ensure pronouns are used effectively?
asked by Camille 
science
If the aim is to let a 700 kg pump flout on the surface of water, how many cylinders ( 50cm*90cm ) containing fresh water should we have ?
asked by Janana 
maths methods
Find the angle of depression from top of a 500 m long chairlift with a vertical height of100 m
asked by dd 
Grammar
Unable to find her driver's license, Mary asked the agent whether a credit card would be sufficient enough evidence to prove her identity. Here, "sufficient enought" is the error. But I do not know why that is. Please explain in details! Thank you.
asked by Julia 
Chemistry
How many kg. of salt needed to be dissolve in 3 liters of water to prepare 80 percent salt solution?
asked by Ivyl 
Geometry
Use any tools to construct each of the following, if possible: a. A right triangle with one acute angle measuring 75° and a leg of 5 cm on a side of the 75° angle b. A triangle with angles measuring 30°, 60°, and 90°
asked by Adalgisa 
math
define the word “function.”
asked by tamika 
intermediate algebra
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions,state this. 3x+7y=77 2x+7y=42
asked by ROCKY 
intermediate algebra
use thr discriminant to determine wheather the following equations have solutions that are two different rational solutions;two different irrational solutions; or two imaginary solutions.8x^2+7x+3=0
asked by ROCKY 
careers in early childhood education
Factors that support the need for a more familycentered approach to education include an increase in the divorce rates and the: a.)increasing numbers of immigrant families. b.)need for children to respect their elders. c.)federal legislation that forces
asked by lachelle mitchell 
algebra
Solve by substitution method 3x+8y=17 2x+y=14 please show step by step so i can understand better. I keep getting it wrong at the end.
asked by tara lee 
intermediate algebraDivide
Using polynomial long division to divide. 25x^3+40x^225x+10 by 5x^23x2
asked by ROCKY 
statistics
3. A researcher is interested in comparing the Christian maturity level of students who volunteer for community service versus those who do not. The researcher assumes that those who perform community service will have higher Christian maturity scores. The
asked by Anonymous 
English
I need to check my work on diagramming this question. How many players are on a team? I think it should be as follows: How (adverb) many (adjective) players (direct object) are (past tense verb) on (proposition) a (definite article) team (subject of
asked by Tim 
Chemisty
How would you classify a solution of NaCl at 35.9 g/100 g of water at 20° C?
asked by Hannah 
comm215
I have to write a 300400 words essay on the following questions: Why overcrowding of school are causing teacher's to lose their jobs? how is teacher layoffs the result of overcrowding? Please help.
asked by Sophia 
Algebra
I am having trouble with two problems. I can't seem to get a solid solution to either one of them. 3/y+5 + 6/7y add and simplify 5r/8r = 3/r8 solve Can someone help me please? Thanks so much.
asked by Aria 
Algebra
I have to work out this equation for my college paper and I am having trouble understanding graphs, etc. The question is C=200+50 and C=300+25. Can anyone walk me through the steps on how to graph this?
asked by Maggie 
Algebra
solve 5y+3y is less then or equal to72
asked by Roger 
HUM
COuld you please help me re word this sentence Social media sites have affected commerce because people can advertise to thousands of people all at once through different sites.
asked by Kelly 
annuaties
Mr. Strupp expects to retire in 12 years. Beginning one month after his retirement, he would like to receive $500 per month for twenty years. How much must he deposit into a fund today to be able to do so if the rate of interest on the deposit is 12%
asked by nikki 
algebra
f(x)=3x^218x6 identify the function`s domain and range.
asked by shantel 
algebra
Break even analysis Initiual fee cost $200.00 and $50.00 dollars for labor.the other company charges $300.00 initiual fee and $25.00 per hour for labor
asked by lisa 
PSYCHOLOGY
DRUG ADDICTION OCCURS WHEN:
asked by MS.BAR 
math
perform the indicated operation (9x10^6)x (6x10^4)
asked by Anonymous 
Botany  Science
What plant species has leaves growing in their internodes?
asked by Willoby 
math
if june is the starting month what month would it be 77 months from june?
asked by Anonymous 
psychology of health promotion
assingments/term paper on psyhological basis of health promotion
asked by lutom 
history
the main goal of the habsburg empire in wwI was?
asked by pam 
math
saturday is the starting date what day will it be 1 year 44 day from saturday no leap years
asked by Anonymous 
math
Give your own example of at least four ordered pairs that does not model a function. The domain will be any four integers between 0 and +10. The range will be any four integers between 12 and +5.
asked by tamika 
algebra
Express in terms p. 2 square root of 36
asked by Shay 
Business Communication
In which of the following situation would it be BEST to recast the situation as a positive message? A.When you want to maintain goodwill with the reader, because you still have to deal with each other. B. When there really is not a reason for the refusal.
asked by Thomas 
math
Matt is a short put champion and is planning to participate in the next Olympic Games. He starts to practice and completes 49 throws from a center point in different directions. When he started to measure all the distances, he found that every throw landed
asked by Ladoo 
careers in early childhood education
Examples of best practices of caregivers, culled from different childcare experiences, include all of the following Except: a.)exude an energetic affection for the children. b.)tell parents judgmental stories about their children. c.)problemsolve with
asked by lachelle mitchell 
math
Write a paragraph explaining how to find the surface area of a cone with height 10 in. and base radius 8 in
asked by charles 
Calculus
83i divided by 46i=
asked by Josh 
life orientation
2 institutions that redress teenage pregnancy
asked by caroline 
Chemisty
In terms of saturation, how would you classify a KBr solution with a concentration of 78 g/100 g of water at 47°C?
asked by Hannah 
life orientation
what you are talking about if you are talking about alcohol abuse
asked by nsika 
math
please let me know the probability that in five tossess, a coin shows heads at least 3 times in succession?
asked by niv 
ALGEBRA
(5y24y)+ (2Y2+6Y9)
asked by Anonymous 
math
1 kilometer =
asked by amy 
math
if f(x)= 5x+7 and g(x)=x^22 write the functions a. (fxg)(x) b. f(g(x))
asked by John 
math
find the center and radius of a circle given the equation in general form x^2+y^2+4x6y+2=0. center: ? radius: ?
asked by Jen 
statistics
I am not understanding this last portion of my statistics class. I am completely confused about critical values. Please help me. Thank you!! What critical value for z would be used to test the hypotheses: H_0:μ≥15 and H_a:μ
asked by Celest 
Algebra
4(r6)+1>5(r+3)25 the solution set is ?
asked by Trisha 
Algebra
9/10( 7+2x) +2 is greater then or equal to 14
asked by Tommy 
science
Describe the relationship between substrate concentration and the initial reaction rate of an enzymecatalyzed reaction. Is this a linear relationship? What happens to the initial reaction rate as substrate concentration increases?
asked by Ron 
Physical Science
why does the maximum initial reaction rate cannot be reached at low substrate concentrations.
asked by Ron