Questions Asked on
March 14, 2008

trig
eliminate the parameter t from the following x = 4 sin t y= 7 cos t sketch the graph
asked by Abe 
chemistry
The solubility of the oxidizing agent potassium permanganate is 7.1 g per 100.0 g of water at 25° C. What is the mole fraction of potassium permanganate (KMn04) in this saturated solution? What is the molality of the potassium permanganate solution?
asked by thanh 
word problem
Working together, Larry, Moe and Curly can paint an elephant in 3 minutes. Working alone, it would take Larry 10 minutes or Moe 6 minutes to paint the elephant. How long would it take Curly to paint the elephant if he worked alone? Thanks.
asked by jen 
Chemistry  Science
My question is is petrol , Kerosene , oil and Naptha all hydrocarbons which means that they all contain only hydrogen and carbon ? and nothing else?
asked by Lil Kid 
math
what do you get when you cross two ducks with a match?
asked by shannon 
math
what do you get when you cross a stick of dynamite with a lemon pie?
asked by shannon 
Discrete Math: Equations of a Line
Find parametric equations for the line that passes through the point (0, 1, 1) and the midpoint of the line segment from (2, 3, 2) to (4, 1, 5). I don't know how to solve this problem.
asked by Anonymous 
trig
eliminate the parameter t from the following x = 9sin t y = 9cos t
asked by Abe 
prealgebra
Mrs. Boyd went shopping at city center Mall. she parked her car in the parking garage. The cost for parking was $1.00 for the first hour and $0.75 for each additional 1/2 hour. Mrs. Boyd paid $4.75 for parking. Write an equation to find how long Mrs. Boyd
asked by Dj 
science
Im doing my resistance of a wire coursework. If a wire is longer why does the voltage increase and the current decrease?
asked by Andrew Boynton 
managerial economics
When McDonald's Corp. reduced the price of its Big Mac by 75% if customers also purchased french fries and a soft drink, The Wall Street Journal reported that the company was hoping the novel promotion would revive its US sales growth. It didn't. Within
asked by jean 
ETH
The final project for ETH 125 is a 1,400 to 1,750word autobiographical research paper on race in your community. The CheckPoints and assignments in class are designed to stimulate your awareness of cultural diversity issues, so, as you craft your final
asked by Elizabeth 
chemistry
According to Raoult's law, which statement is false? a. The vapor pressure of a solvent over a solution decreases as its mole fraction increases. b. The solubility of a gas increases as the temperature decreases. c. The vapor pressure of a solvent over a
asked by thanh 
Science
Sucrose and glucose contain the elements carbon, oxygen, and hydrogen. What kind of elements are these?
asked by Haley 
Algebra HELP!
Simplify expression 81^1/4 =(4 sqroot81) = (3)
asked by Cindy 
Books: "Return to Laughter" and "Things Fall Apart
What are some differences between the book "Return to Laughter" and "Things Fall Apart?"
asked by Ashley 
geometry
In right triangle ABC, angle C=90 degrees, AC = 3 and CB =4. If D is on segment AB and DB = 2, find the distance from D to C.
asked by carson 
government
why does a member of congress vote as he or she does? like their race, gender, all that stuff. and where does the true power of congress lie?
asked by s 
math
0k i don't know the answer for these percents, decimals, and fractions. You have to change decimals to percents, fractions to decimals, and percents to fractions. 0.23 3/100 32 1/2% 0.25 3/5 75% 1/8 0.835 10% 95% 4% 120% 0.3333.... 1.05 1/6 If you can
asked by Kenya 
Chemistry  please this is urgent
To a calorimeter containing 41.80g of water at 29.95oC, 11.7999 of a salt was added with stirring. As the salt dissolved, the temperature rapidly changed to 37.85oC before slowly returning to room temperature. 1. Calculate the Heat of Solution. Given that
asked by girl who needs help in chemistry right now 
O.Chemistry *****PLEASE CHECK*****!!!!
Please check these out for me, if I am correct: Match the following statements with SN1 or SN2 reactions: 1) The order of reactivity in alkyl halides is methyl>primary>secondary>tertiary 2) There is an intermediate carbocation 3) The ratelimiting step
asked by K 
business law
Does a minor's duty of restitution supercedes duty of restoration?
asked by sUE 
Math
Hi SOCK is a parrallelogram .through a variable point H of[SC] draw the parallel to [OS]which cuts [SK]in E and [OC] in F. the parallel to [OC]cuts [OS]in M and [KC]in N. Find the locus of I midpoint of [HM].
asked by suha 
biology
what is a microscope who uses a microscpe when was the microscpe discovered who discovered the microscope
asked by sussie 
naturalsciences
what is a microscope
asked by sussie 
Economics
i have the following essay to do and need help...Track interest rate changes in the euro zone over the past five years and analyse why the changes were brought about. See if this enabled the European governments to hit its inflation target.
asked by Martina Forde 
Calculus  Partial Fractions
What is the integral of 7e^(7t) Divided By e^14t+13e^7t+36 Using partial fractions
asked by Sean 
Geography
What government imposed barriers stop or hinder the export of automobiles? "export" as in shipping to other countries i think?!
asked by Anne 
algebra
How do you solve this problem? 5y + 4y ¡Ü 54
asked by Casey 
chem.
A closed gas system at 855K has a colume of 6060mL and pressure of 935 mmHg. If the temp. is increased to 950.0 celcius , the volume decreases to 3910mL. What is the resulting pressure? Express answer in kPa. Is 202,000,000kPa right?
asked by aaaaa 
trig
Write an expression that gives all solutions to the equation sin x + cos x =  radical 2
asked by Abe 
algebra
Can someone show me how to graph this equation by graphing? 5x4y=8 4y5x=8
asked by Anonymous 
algebra
Can you show me how to solve this problem? 5y + 4y ¡Ü 54
asked by Casey 
SCIENCE
HOW MANY PEOPLE DOES IT TAKE TO BUILD A GREEN ROOF?
asked by Kate 
algebra
I am looking for a perpendicular line. I'd appreciate ir if you could tell me if I'm on the right track. I am given y=5x + 4 and know that a perpendicular line passes through (3,5). I think the slope of this line would be 1/5 so it would go up (rise) 1,
asked by chris 
Physics
An object is projected at an angle of 53.1degrees above the horizontal at a speed of 50m/s. Sometime later it enters a narrow tube positioned at an angle of 45degrees to the vertical. Determine: a) The initial horizontal and vertical components of
asked by Anonymous 
English expression
The family is the base unit of our society. Let's learn the expressions of understanding family relationship and of introducing family. 1. Realistic Information(family) 2. Comparison 3. Describing the fact How do you describe other persons' appearances?
asked by John 
History
a.One way that opposition to civil War was suppressed was the denial of the right of_________ b.A _______ was an area set aside exclusively for Native American Tribes. c.A_________ is a place set up to provide housing and a standard of living for the
asked by Sarah 
English expression
Let's find out who is being introduced to whom, and draw a line between them. After that introduce the friends sitting on both your sides.  Are the expressions above correct? 1. sitting on both your sides. 2. sitting on your both
asked by John 
English expression
What Number is Mike? He is Number 71. What number is Mike? He is number 71. Which one is correct? Do I have to capitalize number?
asked by John 
History
1 The Pilgeims who settled the Plymonth Colony: a.develpoed a harsh dictatorship under William Bradford. b.Created a truly democratic government for all men and women. c.Landed for the winter and planned to move to Virginia in the spring as they had
asked by JUSTINE 
managerial economics
When McDonald's Corp. reduced the price of its Big Mac by 75% if customers also purchased french fries and a soft drink, The Wall Street Journal reported that the company was hoping the novel promotion would revive its US sales growth. It didn't. Within
asked by jean 
managerial economics
Can someone explain cost structure and market structure to me please.
asked by jean 
biology/science
i am doing a paper and i need to find the pros to embryonic stem cells I only have one reason which is medical but I need 4 more. Can anyone give me general ideas of pro arguments
asked by john 
prealgebra
can someone check if this inequality is solve right 5x + 3 >= 28 3 3 5x >= 25 5 5 x
asked by Dj 
Calculus  AntiDerivatives
How would you find the Integral of (cos(x\8))^3, defined from (4 x pi)/3) to (4 x pi)/3)
asked by Sean 
maths
John is making cakes with nuts. He can choose between 4 flavors of cakes, 3 colors of frosting, and 2 kinds of nuts. He chooses one flavor, one color and one kind of nut. How many different cupcakes could be made?
asked by sb 
economics
What fiscal, monetary, and supplyside policies do you believe are currently needed in the US to maintain economic growth, employment, and stable prices. Be specific and support your answer.
asked by Anonymous 
Misc.
Our English teacher has been helping us work on a contest for the past month. She has bought us pizza, brought food for us, and even allowed us to miss her class. She has really been a great help and we want to give her a present... Any Ideas? She likes to
asked by Anonymous 
economics
When Mother Theresa accepted the Nobel prize for Peace in 1979 and decided to use the $190,000 award to construct a leprosarium, was she acting in her own interest? Was she behaving selfishly? Was she following economic principles? Explain.
asked by Anonymous 
prealgebra
Shannon put $ 7,000 in a 5 year CD that paid 8% interest per year. Malcolm put $6,000 in a 5 year CD that paid 10% interest. What was the balance of each person's account at the end of the 5 years? Who made more money and how much more did they make? (Use
asked by Dj 
ETH
I have the same problem as all of you all. But how am I supposed to cite the paper??????? Please help!!!!!!!!
asked by Elizabeth 
Calculus  Integrals
I know I've probably flooded the site or something (Sorry if I have), it's just that these problems aren't similar to anything I've reviewed in class. I've got two more questions, then maybe 1 or 2 more coming. That's all I can see in the future, anyhow.
asked by Sean 
science
one basic step to reduce a combination circuit to its simplest form is to solve for each?
asked by Anonymous 
science
what is one basic step to reduce a combination circuit to its simplest form
asked by Anonymous 
chemistry
What is the molarity of a solution of 10% by mass cadmium sulfate, CdSO4 (molar mass = 208.46 g/mol) by mass? The density of the solution is 1.10 g/mL.
asked by thanh 
business
2. Scaling Study Develop a short questionnaire (five to ten questions) and distribute it to at least ten people. Use at least two different types of questions in the survey. Analyze the responses and comment on the validity and reliability of your
asked by JAMES 
HistoryCivil War
Why was the fishhook formation in the battle of Gettysburg a strong position for the Union forces?Thanks
asked by Mike 
German
HOw would I say "Dear son" and "Love from" in German?
asked by Kurst 
ETH 125
Post a 200 to 300word summary of a current issue between Native Americans and the federal government. Identify the legislation that you think is linked to the issue, and explain why you think there is a connection.
asked by lisa 
Math
I have forgotten how to do ratios...Please help. The standard ratio of(number of treatments) and (total mL dose) are 3.5 to 2mL. If only 2 treatments are given, how many total mL doses are given?
asked by Kellie 
IT 221
How can a project manager be sure that he or she has chosen the correct metrics to assess project performance? Give at least three examples.
asked by lisa 
IT 221
Create a 200 to 300word response to the following scenario: During the implementation phase of a project, as a project manager you are facing many team issues (such as family issues and interpersonal conflicts) and these issues are creating risks that
asked by lisa 
HistoryCivil War
What advantage did Meade have operating in a region friendly to the Union cause?
asked by Mike 
finance *repost*
According to the Value Line Investment Survey, the growth rate in dividends for JCPenney for the previous 10 years has been 10 percent. If investors feel this growth rate will continue, what is the required return for JCPenney stock? Does this number make
asked by confused 
managerial finance
The growth rate in dividends for IBM for the next five years is expected to be 19 percent. Suppose IBM meets this growth rate in dividends for the next five years and then the dividend growth rate falls to 5 percent indefinately. Assume investors require
asked by help 
italian
how do you say "i dream of freedom"? is it sogno della libertà?
asked by remedy 
environmental science
I am having a hard time understanding what a hypothesis is. Anyone able to help me in terms that I might understand?
asked by Mimi