A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Assume that the following data was collected for a chemical reaction where reactants A and B are reacting to form products C and D. As the products are formed, we measure their masses. You will be graded on both the accuracy of your work and the quality of your written communication.

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    a) What is the equation for the model of best fit? Illustrate your process carefully. Find out from your instructor how to submit your calculator screens. b) What does your model predict would have been the amount present at 5 minutes? c) At what time would 25.1 grams be produced, according to your model? d) Are the products formed at a constant rate over time? Explain.

  2. undeadknight26
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I'm lost sorry m8

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    All good m8 @undeadknight26

  4. TheSmartOne
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    since you asked for QH help, let the QH's help @dan815 @nincompoop

  5. dan815
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    what grade are you in?

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @dan815 senior in high school

  7. dan815
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    okay graph your points and u will see it has an exponential fit

  8. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes I see that

  9. dan815
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    okay you're going to think about your own ways to come up with what exponential curve you will use, so you can talk about how to arrived at it

  10. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what about b)?

  11. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Help anyone

  12. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @dan815

  13. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    Hi!

  14. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Hi @ganeshie8 can you be my savior?

  15. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    I'm not so sure, do you mind sharing some more info, like, the course/module name and if you have any worked example problem that would really help!

  16. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    It's AP stats and power models. I'm sorry I don't have an example at this time

  17. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    Ahh then it is easy, have you plotted the given points ?

  18. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes I have

  19. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    did you get the power model equation from ur calculator ?

  20. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    we need that for part b, so please share the equation

  21. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    what ever the equation is, for part b, you simply need to evaluate the function from part a at \(x=5\)

  22. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Right I'm trying to figure the correct equation now. Unsure how to get it in proper form

  23. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    Look at the scatter plot and decide on the model first : |dw:1438329230945:dw|

  24. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    pick one of below two : |dw:1438329385821:dw|

  25. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Exponential regression

  26. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    good, work part \(a\) again, because your equation is way off the given data points

  27. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    How do I even rework or find out the equation when I have no idea what a or b is

  28. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    you have worked the part \(a\) already right ?

  29. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    my calculator gives below equation for part \(a\) : \[y = 2.43*(1.16)^x\] you should also get something close to that

  30. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    |dw:1438330415594:dw|

  31. Jhannybean
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Such a beautiful graph

  32. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes! I can now calculate b c d Thank you @ganeshie8 I was able to finally able to get it and answer these questions with your help I have one more problem which is somewhat similar and has been

  33. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    A somewhat similar problem that has been bothering me, do you have the time to assist if I start a new thread?

  34. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    I'll try, you may ask it here..

  35. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Many wildlife populations are monitored by taking aerial photographs. Information about the number of animals and their whereabouts is important to protecting certain species and to ensuring the safety of surrounding human populations. In addition, it is sometimes possible to monitor certain characteristics of the animals. The length of an alligator can be estimated quite accurately from aerial photographs or from a boat. However, the alligator's weight is much more difficult to determine. In the example below, data on the length (in inches) and weight (in pounds) of alligators captured in central Florida are given. Develop a model from which the weight of an alligator can be predicted from its length.

    1 Attachment
  36. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    As usual, start by plotting the given data points and decide on which regression model to use

  37. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    Notice that weight is dependent variable here, so it goes in y axis and length along x axis.

  38. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Here is the plot

  39. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    this also appears to be exponential regression

  40. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    Yes, I think so.. my calculator gave this equation for exponential regression : \[y=3.8*(1.036)^x\]

  41. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    From the model it seems the weight is increasing by \(3.6\%\) for every \(\text{one inch}\) increase in the length

  42. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thank you very much for your help @ganeshie8 . Truly an experienced and kind math wizard! Appreciate your help so much!

  43. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    np :) when you're free and if you're interested, check out this mooc course from coursera https://www.coursera.org/course/apstat it is free and might help with your preparation!

  44. Astrophysics
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ganeshie what program did you use for that graph, geogebra?

  45. Astrophysics
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    program/ site

  46. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 5

    Yes, it has this spreadsheet feature which is really cool for regression stuff http://prntscr.com/7z5iqp

  47. Astrophysics
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    That's sick, thanks

  48. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.