Questions Asked on
December 31, 2007

  1. algebra 1

    how do you find the rate of change and explain what it means for thhe situation? heres the table: Time(hours) Distance(miles) 4 260 6 390 8 520 10 650

    asked by alex
  2. ib math studies

    What are some sophisticated mathematical processes to compare two different cars?

    asked by Yousra
  3. biology

    1.How many strands of mRNA are transcribed from the two "unzipped" strandsof DNA? 2.What are the three parts of an RNA nucleotide? 3.How does base pairing differ in RNA and DNA? 4.What is the function of mRNA? 5. What is a codon?

    asked by alex
  4. biology

    prokaryotes and eukaryotes differ in many regards. Discuss these differences with respect to: genetic organization, regulatory control and post-transcriptional control

    asked by stacey
  5. biology

    DNA codes for mRNA, which is then translated into polypeptides,which are strands of amino acids. The DNA sequence below codes for the following amino acids: methionine-valine-glycine-alanine-alanine-serine TAC CAA CCA CGC CGC UCA What effect would the

    asked by stacey
  6. biology

    i have some notes but before christmas break was here i had surgery so i didn't get to finish my notes in class and i don't understand much of my work so heres part of my notes: DNA and RNA Differences: #of strands for DNA? RNA? sugar DNA? RNA? Base that

    asked by alex
  7. Film and Physics

    I am doing a paper that entails my knowledge of physics to prove errors in the movie Transformers. There is one scene in the movie where Shia (Sam, the hero) falls in Optimus Prime's hand, from around 20 stories high. Obviously Sam should ooze out of

    asked by MOvie Guru
  8. government

    a positive activity of interest groups is to a. get people interested in public affairs b. provide information to government

    asked by jere
  9. Movies & Science

    I am doing a paper that entails my knowledge of physics to prove errors in the movie Transformers. There is one scene in the movie where Shia (Sam, the hero) falls in Optimus Prime's hand, from around 20 stories high. Obviously Sam should ooze out of

    asked by Alexis (For bobpursley or Dr. Bob222)
  10. chemistry

    what is an example of a solid hydrocarbon

    asked by shauna
  11. calculus

    Integrate x/(x^2 + 4) dx via trig substitution and by u=x^2+4 substitution. Show that results are equal. Via trig substitution of x=2 *tan t, I get: 1/2 * tan^-1 (x/2) + c Via u = (x^2 + 4) substitution, I get: 1/2 * ln |x^2 + 4| + c How are these equal?

    asked by mathstudent
  12. calculus

    Integrate: dx/sqrt(x^2-9) Answer: ln(x + sqrt(x^2 - 9)) + C I'm getting the wrong answer. Where am I going wrong: Substitute: x = 3 * sec t sqrt(x^2 - 9) = sqrt(3) * tan t dx = sqrt(3) * sec t * tan t Integral simplifies to: sec t dt Integrates to: ln|sec

    asked by mathstudent
  13. literature

    When does the Narrative of Sojourner Truth take place?

    asked by Anonymous
  14. calculus

    Calculate definite integral of dx/(x^4 * sqrt(x^2 + 3)) Over (1,3) I start with the substitution x = sqrt(3)*tan t so: sqrt(x^2 + 3) = sqrt(3) * sec t dx = sqrt(3) * sec^2 t dt x^4 = 9 * tan^4 t The integral simplifies to: = dt/(tan^3 t * sin t) How do I

    asked by mathstudent
  15. Can someone please help me asap. Biology

    Can someone confirm my answers? This is a new topic that I just learned in school and I'm a bit confused about it. So I'm not exactly sure about my answers. And this stuff is going to be on my midterm. What actions take place during G1? A) the cell doubles

    asked by Tyne
  16. someone plz help me...thx

    Can someone help me? 1)What is a mood of a story? 2)What is a plot of a story? thank you for the help!

    asked by Hillary