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  1. alexandria

    Chemistry Cellular Respiration - Final electron receptor molecule

    Homework Statement Homework Equations none The Attempt at a Solution Here is my attempted answer, can someone please tell me if I did this correctly, thank you :) 22. Final electron receptor molecule involved in aerobic respiration: * the electron transport chain relies on oxygen to keep...
  2. alexandria

    Measuring Osmosis - Osmometer

    I used the term 'water concentration' because they explained it in the lesson that way: so should i change it to 'water potential' by saying "area of higher water potential to an area of lower water potential"??? Here is what was written in my lesson: so for part b) is my answer correct? does...
  3. alexandria

    Measuring Osmosis - Osmometer

    Homework Statement Hi, I'm doing a biology course online and i'm specifically learning biochemistry right now. I'm having a problem with the following question related to one type of passive transport in a cell: this being osmosis. This question relates to measuing osmosis (isotonic...
  4. alexandria

    Preparing "Adjusting Entries" Financial Accounting

    Ok, I will try to find other sources to help me with this qts but thanks for trying :)
  5. alexandria

    Preparing "Adjusting Entries" Financial Accounting

    for a), I am journalizing an adjuting entry, so I dont include the original supplies amount (which is $865). I was given $865 as the original amount of supplies at hand, at the end of the month the supplies on hand was worth only $349. According to my lesson, I am supposed to find out how much...
  6. alexandria

    Regarding Financial Accounting Fundamentals

    Thank you for the reply :) Should I re-post my question on this thread, so you can help me with it?
  7. alexandria

    Regarding Financial Accounting Fundamentals

    Hello, I was told that I could post questions related to Financial Accounting Fundamentals on the Pre-calculas Math section of Physics Forum. But everytime I post questions related to this topic, I don't get any replies or help. Am I posting in the wrong category??
  8. alexandria

    Preparing "Adjusting Entries" Financial Accounting

    Homework Statement Use a journal to prepare end-of-month adjusting entries for June 30th, 20-- for the following. The accounting period is one month. a) The balance in the supplies account is $865. Inventory taken at the end of the month shows supplies on hand worth $349. b) The beginning...
  9. alexandria

    Arithmetic and Geometric Series

    thanks for the reply, but does the explanation of why the tortoise won make sense?
  10. alexandria

    Arithmetic and Geometric Series

    Thanks for the detailed explanation! Now my only problem is with part d) and e) I decided to graph the formula's i created in part c), and this is how it turned out. the redline represents the tortoise, while the blue line represents the hare. Using this graph, I will make an attempt to...
  11. alexandria

    Arithmetic and Geometric Series

    ok so for part a), what I am understanding is that the tortoise series is supposed to be like this: Sn = 20 + 20 + 20 + 20.... since you mentioned that the qts is not asking for the total distance, but the distance for each individual minute. Since the tortoise is travelling at a constant speed...
  12. alexandria

    Arithmetic and Geometric Series

    Homework Statement Homework Equations no equations required 3. The Attempt at a Solution a) so for part c) i came up with two formula's for the tortoise series: the first formula (for the toroise series) is Sn = 20n This formula makes sense and agrees with part a). for example, if the...
  13. alexandria

    Proving identities

    thanks so much for all the help, I really appreciate it! :smile:
  14. alexandria

    Proving identities

    ok so, (tan(x) - 1) (tan(x) + 1) (cross out the expression tan(x) + 1) ----------------------------- tan(x) + 1 = tan(x) - 1
  15. alexandria

    Proving identities

    ok so, tan^2(x) - 1 --------------- tan(x) + 1 = tan(x) tan(x) - 1 ------------------ ( im pretty sure tan(x) crosses out at this part) tan(x) + 1 = tan(x) - 1 / 1 = tan(x) - 1 is this process correct?
  16. alexandria

    Proving identities

    ((sin^2(x) - cos^2(x)) /cos^2(x) ------------------------------------- (sin(x) cos(x) + cos^2(x)) / cos^2(x) = tan^2(x) - 1 -------------- tan(x) + 1 = tan(x) - 1 is this correct?
  17. alexandria

    Proving identities

    for the numerator: sin^2(x) - cos^2(x) / cos^2 (x) inorder to find the answer, I have to divide cos^2(x) by each term in the expression: so sin^2(x) / cos^2(x) = tan^2(x) (since sin(x)/cos(x) = tan(x)) and -cos^2(x) /cos^2(x) = -1 so is the answer tan^2(x) - 1 ???
  18. alexandria

    Proving identities

    can you please elaborate?
  19. alexandria

    Proving identities

    ok so i came up with an answer, can someone tell me if im on the right track? ((sin^2(x) - cos^2(x)) /cos^2(x) ------------------------------------- (sin(x) cos(x) + cos^2(x)) / cos^2(x) = tan^2(x) ---------- tan(x) + 1 = tan(x) tan(x) ------------- tan(x) + 1 = tan(x) + 1...
  20. alexandria

    Proving identities

    srry im very confused, what do you mean by cross multiply and why would I need to cross multiply tan(x) - 1 by the denominator of the right side? Can you provide an example!
  21. alexandria

    Proving identities

    ok so for the right side,if I use the formula: a^2 - b^2 = (a-b)(a+b) then it becomes: (sin(x) - cos(x)) (sin(x) + cos(x)) ------------------------------------- sin(x) cos(x) + cos^2(x) how do i solve this??
  22. alexandria

    Proving identities

    Thanks for the quick reply! Ok so i understand that i am supposed to leave the left side the same, but what do i do with the right side. You mentioned dividing both numerator and denominator with cos^2(θ), how do i do that? so is it: sin^2(x) - cos^2(x) /cos^2(x)...
  23. alexandria

    Proving identities

    Homework Statement prove the following identity [/B] Homework Equations no equations required The Attempt at a Solution I've been trying to prove this identity, but no matter what I do, I can't seem to make both sides the same here is my answer to this qts so far: can someone please tell me...
  24. alexandria

    Journalizing, posting, trial balance, & financial statements

    Here are the rest of my answers for part a), can someone please tell me if I analyzed each december transaction and journalized them correctly. The december transactions that I had the most trouble with (and i'm pretty sure I analyzed them incorrectly) are listed in the previous message. I'm...
  25. alexandria

    Journalizing, posting, trial balance, & financial statements

    Homework Statement I am doing a course called Financial Accounting Fundamentals (BAF3M-B) and I was told that physics forum provides help with qts related to this subject. Anyways, Here is the question I'm having trouble with: Sorry if the scanned version is a bit blurry :P a)...
  26. alexandria

    Financial Accounting Fundamentals - BAF3M-B

    I'm having trouble with a few questions from this course called Financial Accounting fundamentals gr.11. Does anyone know if physicsforum answers qts related to this subject?? I'm a homeschooler, so I don't receive any help from teachers, tutors, etc... Thanks.
  27. alexandria

    Periodic functions

    Homework Statement Homework Equations no equations required The Attempt at a Solution [/B] a) The number of hours of daylight is a periodic relationship, because it repeats the same wave-like pattern over the course of 1-2 years. b) the period is the amount of time it takes for one cycle...
  28. alexandria

    Exponential growth and compound interest

    ok got it, sorry for the late reply, but thanks for the help!
  29. alexandria

    Exponential growth and compound interest

    i think its because i didnt round 0.005208333 would my answer still be considered right, or is it better to round ??
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