Questions Asked on
July 3, 2008

music read
Does anyone know any tricks to help me remember the musical notes?
asked by Marett 
Algebra
Evaluate the function at the given value of the independent variable and simplify. f(x) = 2x2  5x + 6; f(x  1)
asked by Dan 
physical science
A 250.0 kg roller coaster car has 20,000.0 J of potential energy at the top of the hill. Neglecting frictional losses, what is the velocity of the car at the bottom of the hill?
asked by shannon 
Calculus
Use a specific example then expand to the general case to determine what happens under scalar multiplication. That is, determine if k(a * b) = (ka) *b = a* (kb)? What does this even mean? Merci beaucoup. I am thankful for the help.
asked by Simone 
information management
List and describe each of the seven phases of the systems development life cycle. Make sure your descriptions make connections between the different phases – how one leads to another, the importance of each, etc.
asked by Anonymous 
chemistry
I would love some input on a few problems, listed below. My answers follow the questions 1. Would it be feasable to store a solution of lead nitrate in a container of metallic zinc? Why or why not? No, it would not. A chemical reaction takes place, as the
asked by delany 
Physics ***HELP***
please explain how you got the answer car A  20m/s car B  30m/s Assume that both cars are 5m long. Suppose that car B is 20m behind car A is attempting to overtake car A. How long will it take for car B to arrive 10m ahead of car A?
asked by Tom 
Algebra 1
If the sides of a square are lengthened by 8cm, the area becomes 289cm^2. Find the length of a side of the original square. I do not know how to do this please help me.
asked by Cynthia 
Maths  More than one question please help me
Hi everyone :) I need a lot of help. I have many questions i don't get how to do and even if you can help me with one of them, I'd truly appreciate it. I really need the help and i gotta hand this in soon so please help if you know how to do any of these
asked by sweetG 
Algebra
Can someone please help me with this I am so confused I have been working on it for 2 hrs!! Bayside Insurance offers two health plans under plan A Gary would have to pay the first $70 off his medical bills plus 30% of the rest. Under plan B Gary would pay
asked by Anonymous 
Calculus:Help!
Any ideas on how to solve this: Use a vector solution to show that a scalar equation for the line through the points P1(x1, y1) and P2(x2, y2) is yy1/xx1 = y2y1/x2x1? Very confused as to what is meant by this question. Thanks.
asked by Derek 
English Improving writing rough draft
Please take a look at this this is what I am turing in (tomorrow) Prewriting Prewriting Paragraph 1 The problem is Jack and Rachel often have nothing to do Bonnie and Molly are working extra and have to work over time Melanie and Jessica share an
asked by KaleighAnne 
Chemistry
A sample of O2 gas is placed in a sealed 1.00 L flask and pressure is measured as temperature is changed. The data are plotted and the slope of the resulting line is equal to 0.00400 atm/K. The line passes through the origin of the graph. There are (blank)
asked by Jessica 
Chemistry
Balance the equation: _MnO4– + _H+ + _Fe2+ => _Mn2+ + _H2O + _Fe3+ How do you do balance this redox reaction?
asked by Tom 
chemistry
could some one please help to calculate the fraction of octahedral holes occupied by aluminium in Al2O3
asked by aoife 
Math
You are a policeman on a case in which you believe there is a strong suspect. Based on your overall experience, your prior knowledge of this “person of interest,” and the evidence you’ve seen against him thus far, you believe that when he claims to
asked by Cami 
second post algebra
does anyone have a clue how to do this. I am so lost. If you can please explan why you do what you do when working this out so maybe i can better understand this. thanks a bunch. Prove (algebraically, not numerically) that the product of the solutions of
asked by jean 
Algebra
In a right triangle find the length of the side not given. b=1, c=sqrt10, a need help
asked by Sam 
information management
Why is the waterfall model valuable in the management of information technology projects? Explain your answer.
asked by Anonymous 
algebra
Find the LCM for u^3 + 6u^2 + 9u, u^2  6u I came up with u(u+3)(u6) is this correct?
asked by C 
Math
I can't calculate 1 as the answer given to the following problem. I keep getting 2. Can you show me where am I going wrong? The spread of rumor among 100 people can be approximated by the equation log10(x) – log10(100x) = (0.1)t – log10(90), where x
asked by Chris 
maths
an amount gets doubled in 15 years with compund intrest.In how many years amount will become 8 times,using the same compund intrest ?
asked by indu 
maths
there is a long table having 8 chairs on each side .there are 16 persons who are to be seated for a tea party.4 of them want to sit on a particular side and 2 other want to sit on the other side. in how many ways all the 16 people may be seated for the tea
asked by indu 
Algebra
x8/x9x+1/x+9+x17/x^281 =x^381x^27x27/x^2. Can some check this my answer and see if it corre4ct please.
asked by Cynthia 
physical science
how much current flows through a circuit if the resistance is 4 ohms and there is a 12volt battery?
asked by Ajnaba 
Chemistry
The total pressure in a flask containing air and ethanol at 257C is 900 mm Hg. If the pressure of the air in the flask is 762 mm Hg, the vapor pressure of ethanol is (blank) mm Hg.
asked by Sarah 
HRM 240
How can large and small firms utilize change management concepts to meet growing technology demands?
asked by angel 
Calculus
Determine a vector equation for the line through the points (1, 4) and (2, 1). I said: r= (1,4) + (4,5), tER, is that correct?
asked by Derek 
Chemistry
A gas initially at 20 degrees C it must be changed to (blank) degrees C to triple the pressure.
asked by Robin 
Calculus:Help!
Verify using an example that a + ( b• c) = (a •b ) +c ? Explain your reasoning. I have been over this a thousand times and I don't understand (the notes I was given online are incorrect so I don't know how to answer this). THANKS!
asked by Derek 
ethnic
What information about race and ethnicity in the United States has helped you better understand or relate to specific minority groups? Have you learned something new about your own cultural history? Trends in immigration will continue to shape the face of
asked by nik 
Algebra 1
(4x^67)(x^84) = 4x^147x^816x^6+28 Check my answer please.
asked by Diane 
government
What phase in the Declaration of Independence might be considered by some to violate the implied constitutional principle of the separation of church and state
asked by Lenanne 
Marketing
There was a time when the presence of web based ecommerce was distinctive and differentiating. Is it a price of entry today?
asked by China 
Algebra 1
quadratic equation. ax^2+bx+c=0 Solution 1,only solution. Can you help me I am struggling to work this out.
asked by Cynthia 
biology
what is the procedure for water sampling
asked by cbba 
Algebra
Can anyone explain this equation. Simplify by removing factors of 1. q^264/(q+8)^2
asked by Brittney