Questions Asked on
January 6, 2008

calculus
find the value of m so that the line y = mx divides the region enclosed by y = 2xx^2 and the xaxis into two regions with equal area i know that the area enclosed by y=2xx^2 is 4/3 so half of that would be 2/3 however, i have no idea how to find the
asked by Anonymous 
Chemistry
At STP 4 liters of O2 contains the same total number of molecules as 4 L of CO2? is that right? OR 8 L of HE, 1 L of NH3
asked by John 
algebra
The perimeter of a rectangle is 80x. The base is 7 times the height. In terms of x, what are the dimensions of the rectangle. What is the area? Thanks..
asked by Jen 
Chemistry
can anyone explain how does the balanced chemical equation show the law of conservation of mass?
asked by John 
US History
What were the three most signigicant consequences of the industrialization of the American economy after the Civil War? Explain your choices. I am having trouble coming up with three consequences. I need some ideas. Thanks
asked by Amanda 
physics
a fan on a floating barge blows air at high speed toward the right. a)will the barge move? if so, what direction? explain. B) a sail is now put up on the barge so that the fan blows air towards the sail. will the barge move. if so, what direction? explain.
asked by dude 
math
your cellular phone plan costs $11 per month plus $.12 per minute of phone usage.you want to pay no more then $20 per month.What are the most number of minutes (m) that you can allow for phone calls each month?
asked by jasmine 
math
3 sqrt(x) = 6 g(x) = 2x/3
asked by mike 
english
what are some examples of courage in the novel night by elie wiesel and the film life is beautiful originally in italian, the examples in night are more needed! ty
asked by buddy 
Angles...
How do i express angles in a radian measure as multiples of pi. For example, suppose i have an angle of 30 degrees, and a angle of 270 degrees. How would I express them in a radian measure as a multiple of pi?. Thanks.
asked by Matt 
Science
Will somebody please tell me the following formulas: Nitrogen Water (H20) and carbon?? Thanks
asked by Ginny 
math
If p,r, and s are three different prime numbers greater than 2 and n = p*r*s, how many positive factors, including 1 and n, does n have?
asked by kelly 
ap biology
Even though I know what random selection, directional selection, stabilizing selection, disruptive selection and sexual selection are I can not understant what does Starlings producing five eggs in each clutch has to do with it. In my final I got this
asked by claudia 
chimistry
in chimistry what is aq
asked by katie 
chemistry
in chemistry what is aq
asked by katie 
English
What is the importance of Dawn in the novel Dawn by Elie Wiesel? For a project theres a question Describe the similarities and differences between Elisha and John Dawson's wait for dawn. I didn't catch it because I thought it was the morning what they
asked by Jennifer 
math
recall that the acceleartion due to earth's gravity is 32 ft/sec^2. from ground level, a projectile is fired straight upward with velocity 90 feet per second. a. what is its velocity after 3 seconds b. when does it hit the ground c. when it hits the
asked by kaley 
calculus
let x^2 + 4xy + y^2 + 3 = 0 are there any points on the curve where the tangent is horizontal or vertical? justify your answer.
asked by julie 
Algebra 2
The problem simply is this: Evaluate: 12 5 2 3 0 1 5 4 2 These figures are in matrix form. I don't understand what it is I am supposed to be evaluating.
asked by Lucy 
Chemistry
Can someone help me balance this i tried and didn't succeeded. Fe2O3 + CO > Fe + CO2
asked by John 
English
Hi, I am doing a independent novel study on "Roll of Thunder, Hear My Cry" By Mildred D. Taylor. But I am not sure how the title has anything to do with the book because i can't seem to make a connection between the two. Could you help me?
asked by Faye 
Government
Does anybody have any ideas as to where i can finde info about the Democrats and Republicans in the late 1800s, other that wikipedia?
asked by Christie 
calculus
calculate the indefinite integral 2sec^2x dx (cosx)/(sin^3x) dx calculate the definite integral interval pi/4, pi/12 csc2xcot2x dx
asked by anonymous 
Algebra
how do you solve linear combinations?
asked by Mandy 
english
What is the adverb in  On certain nights, I see stars everywhere. and The orbit of Uranus once puzzled astronomers.
asked by Malik 
calculus
given y = 4x3 find the minimum value of xy. find the rate of change of xy with respect to x. find the rate of change of xy with respect to y.
asked by julie 
Science
Which continent is now part of Eurasia but, according to theory, was originally a separate continent that moved northward into its present position?
asked by Gail 
Science
Why isn't the fit perfect if the continents were once part of Pangaea?
asked by Holly 
art history
which alphabet goes to which meaning? faux surface _ eclecticism _ concrete construction _ verism _ vesuvius _ aqueduct _ pantheon _ equestrian portrait _ a. dome for all gods b. honest way of making art c. 1st style wall painting d. 4th style wall
asked by mike 
Science
If the continents were drawn on a Mercator map, would your chances of finding a fit have been improved? Explain.
asked by Kelly 
HELP!
Scientists throrize that the continents are still drifting apart. What will be the eventual position of North America with respect to Eurasia?
asked by Haley 
omg!
If the continents were once connected, what might be similar about the coastlines where they were connected?
asked by Jess 
world history
who wrote the decleration of independence and who influinced?
asked by katie 
Science
Aluminum foil is lying on the sidewalk in the sun for approx 1 hr. Put an ice cube from a drink and put it on the foil.... Which direction wll the heat energy flow from?
asked by Kel 
Social Studes
What events led to the founding of New York and New Jersey?
asked by Jasmine 
algebra
hi... i need help finding 2 equations that i would use for this elimination process.... this is what they gave me: * the sum of the digits i a twodigit is 14. If the 2 digits are reversed, the new number is 18 less than the original number. Find the
asked by ana 
Pigskin Geography
What is the most arid and wettest cities in the U.S. (Football)?
asked by Jason 
algebra..urgent...
hi... i need help finding 2 equations that i would use for this elimination process.... this is what they gave me: * the sum of the digits i a twodigit is 14. If the 2 digits are reversed, the new number is 18 less than the original number. Find the
asked by ana 
MATH
i really need help on this question!! I need to solve it using a system of two equations, the question says that an automobile radiator contains 16L of antifreeze and water. this mixture is 30%antifreeze. how much of this mixture should be drained and
asked by Laura 
science
I have to come up with a question that i can turn in to a experiment need help please
asked by jacob 
math
The sum of the digits of a twodigit number is 14. If the numbers are reversed, the new number is 18 less than the original number. Find the original number. I know Ana asked this question, but i don't understand how to get the equations.
asked by Astrid 
algebra
the teacher accendentally reversed the digits if a test scored and shorted a student 36 points. SHe told the students that the sum of tha digits was 14. what was the actual score on the test? i need two equations
asked by Trixie 
calculus
Integrate: dx/(2x^2 + 4x + 7)
asked by mathstudent 
math
mrs.wheelbarrow weasel is less than 100 years old.her year of birth is divisible by 23 and 17, as well as by one other prime number less than 30.when was mrs.wheelbarrow weasel born?if she was still alive,how old would she be this year?(2007)
asked by jazz 
quick french Q
is this sentence grammatically correct: "nous avons parlĂ© beaucoup de franĂ§ais?"
asked by jon 
math
Hi! I am trying to solve an order of operation question would you please check my answer... 36+9/3*5 I soved it to equal 51 9/3=3 3*5=15 36+15=51 Thanks for your help!!
asked by Ashley 
metric conversion
43.3mm= ______dm how do you solve this equation?
asked by Keegan 
Algebra II
Use two ordered pairs to write a prediction equation. Then using your prediction equation to predict the number of comic books sold when the price is $4.50. The table is as follows: Price$2.00 # sold was 16 $2.50 13 $2.75 12 $3.00 10 $3.50 7 I used
asked by Lucy 
Coterminal Angles
I need help with this.. it's for my midterm review. My midterm is next week. I would appreciate the help. Determine two coterminal angles (one positive and one negative) for each angle. The answer must be in degrees. a) 36 degrees b) 120 degrees c) 300
asked by Joe 
Intro to Chemistry
A substance X has the density of 0.359 g/mL at room temperature. What is the volume in mL of 25.0 g of the substance? Show calculation.  I tried to cross multiply but I dunno...I'm getting some pretty crazy numbers.
asked by chrisalis 
Biology
Can anyone help me with the differences and similarities between cellular respiration and fermentation? I know one similarity is that both use the process of glycolysis. And NAD+ is recycled through both processes. Can anyone help me with some more?
asked by Sam 
biology
okay im totally lost here, the question i need to answer is explain why codons can't consist of two bases instead of three for each amino acid. im so confused..help!
asked by Kaitlyn 
english
what was the biggest suprise or dissapointment in the book wings by julie gonzalez?
asked by teresa 
Trigonometric Functions
Determine the Value of all six trigonometric functions of theta when given? I need help. This is for my midterm review, if anyone is willing to help, I'd appreciate it. a) sin theta= 3/5 and theta is in quadrant 1. b) tan theta= 2 and theta is in quadrant
asked by Mike 
Science
Will somebody please tell me the nitrogen,H20, and carbon formulas???? Thanks!
asked by Ginny 
Chem
H2SO4+B(OH)3=B2(SO4)3+H2O
asked by Courtney 
science
I am having trouble with my homework it tells me to write the diffrent forms of energy to a firecracker and a Hbomb.
asked by Tony 
Algebra II
A furniture company displays bedroom sets which require 21 square meters of space and living room sets which require 42 square meters of space. The company,which has 546 square meters of available space, wants to display at least 6 bedroom sets and at
asked by Lucy