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anonymous

  • one year ago

I need help with a few Algebra 1 Q's in preparation for a test. It will take about 10 mins of your time, and I will fan, medal, and give a positive testimonial to anyone who is willing to help me out.

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  1. anonymous
    • one year ago
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    i will try my best :)

  2. anonymous
    • one year ago
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    Thank you! Give me a few seconds.

  3. anonymous
    • one year ago
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    ok

  4. anonymous
    • one year ago
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    1st Q: http://prntscr.com/7a1nki

  5. anonymous
    • one year ago
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    If you don't know it, it's fine, we can move on if you'd like :)

  6. anonymous
    • one year ago
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    I'm in algebra 2 as of now and I'm not sure of the answer lol

  7. anonymous
    • one year ago
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    Okay! No problem. (I'm in Algebra 1) Let me get out the next Q.

  8. anonymous
    • one year ago
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    k

  9. anonymous
    • one year ago
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    http://prntscr.com/7a1pxw

  10. anonymous
    • one year ago
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    It would be A. you want an explanation?

  11. anonymous
    • one year ago
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    Yes, please :)

  12. anonymous
    • one year ago
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    ok so the shaded part of the graph would all be correct answers

  13. anonymous
    • one year ago
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    and A is the only ordered pairs within the shaded part

  14. anonymous
    • one year ago
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    Oh okay, so by trial and error, one can get the correct answer easily. Thank you!

  15. anonymous
    • one year ago
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    np

  16. anonymous
    • one year ago
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    Q.3: http://prntscr.com/7a1r4w Are they asking for the rate of change?

  17. anonymous
    • one year ago
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    I don't think so

  18. anonymous
    • one year ago
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    im pretty sure its C.

  19. anonymous
    • one year ago
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    Why is that?

  20. anonymous
    • one year ago
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    because when i plugged in the numbers into the equation they equaled eachother

  21. anonymous
    • one year ago
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    5 is plugged into h(5) =

  22. anonymous
    • one year ago
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    That's a great way to solve this one! so if I plugged in 0 for x, I would get 5/1 = 5 and if h(x) = 5, then the equation is true. Thanks

  23. anonymous
    • one year ago
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    and 0 is plugged into x

  24. anonymous
    • one year ago
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    yep :)

  25. anonymous
    • one year ago
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    http://prntscr.com/7a1ssa I was thinking it's either the peak or the left part

  26. anonymous
    • one year ago
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    (Those are the only parts that make the function non-linear)

  27. anonymous
    • one year ago
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    So it's either A or B

  28. anonymous
    • one year ago
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    But then C also describes the peak

  29. anonymous
    • one year ago
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    huh

  30. anonymous
    • one year ago
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    or no sorry not C

  31. anonymous
    • one year ago
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    Precisely... but they're asking for an interval, so it can't be C

  32. anonymous
    • one year ago
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    Ya its a or b im not sure which one

  33. anonymous
    • one year ago
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    I think it's A mainly because the function would have been in a triangle shape if not for the discontinuation of the left part.

  34. anonymous
    • one year ago
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    ya i was just about to say that as well

  35. anonymous
    • one year ago
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    i would go with A

  36. anonymous
    • one year ago
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    Okay! http://prntscr.com/7a1uuj (Let me know when you're sick of answering my Q's) :)

  37. anonymous
    • one year ago
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    so 24 = x/3

  38. anonymous
    • one year ago
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    then you would do inverse operations

  39. anonymous
    • one year ago
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    and get x = 72

  40. anonymous
    • one year ago
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    Okay, like cross-multiplication. So it would be 24 * 3 and x * 1?

  41. anonymous
    • one year ago
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    ya that would work too

  42. anonymous
    • one year ago
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    72/x?

  43. anonymous
    • one year ago
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    it would be 24 * 3 = x * 1

  44. anonymous
    • one year ago
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    So 72 = x! Meaning answer is D?

  45. anonymous
    • one year ago
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    you forgot the equal sign

  46. anonymous
    • one year ago
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    yep

  47. anonymous
    • one year ago
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    What is the pattern of this sequence? http://prntscr.com/7a1wqe

  48. anonymous
    • one year ago
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    Do you have any ideas what the pattern might be?

  49. anonymous
    • one year ago
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    Yes: from -2 to 3 it goes through an interval of 3. From 3 to 1 it's 2, from 1 to 4 it's 3, from 4 to 5 it's 1 and from 5 to 9 it's 4. I don't see an ongoing pattern.

  50. anonymous
    • one year ago
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    yeah im not sure on this one sorry:(

  51. anonymous
    • one year ago
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    No problem! :) Next one: http://prntscr.com/7a1z2r

  52. anonymous
    • one year ago
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    I think it's A.

  53. anonymous
    • one year ago
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    Yes it is :)

  54. anonymous
    • one year ago
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    (5, 40) because x represents hours (independent value) it's all about interpreting the graph into a real world problem.

  55. anonymous
    • one year ago
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    http://prntscr.com/7a1zt7 Disregard the answer I chose, it was by accident.

  56. anonymous
    • one year ago
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    Yep and might I say u seem really smart btw you type lol

  57. anonymous
    • one year ago
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    so your in like AP algebra 1 im guessing?

  58. anonymous
    • one year ago
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    There isn't an AP Alg 1.. is there? I'm in honors

  59. anonymous
    • one year ago
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    there is in some schools but I think its A but im not sure

  60. anonymous
    • one year ago
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    I understand :)

  61. anonymous
    • one year ago
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    Next question? or are we still on this one?

  62. anonymous
    • one year ago
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    I believe that the answer to the one I just asked is either A or B

  63. anonymous
    • one year ago
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    Oh it's above :)

  64. anonymous
    • one year ago
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    Now that I look at it more I dont think its A because its saying its greater than or equal to 24,000 when it should be it's less than or equal to 24,000 right?

  65. anonymous
    • one year ago
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    And B would eventually exceed 24,000 if im not mistaken

  66. anonymous
    • one year ago
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    Since the value of the car is a decreasing exponential function, I agree with your points.

  67. anonymous
    • one year ago
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    I think it is C. actually

  68. anonymous
    • one year ago
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    But wouldn't the 'y' represent range instead of domain?

  69. anonymous
    • one year ago
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    thats also what i was thinking as well but its the only one that makes sense i think

  70. anonymous
    • one year ago
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    or no cause its also greater than or equal to

  71. anonymous
    • one year ago
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    either there's a mistake with the question or we are missing something lol

  72. anonymous
    • one year ago
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    Hmm.. you're right. Perhaps this Q doesn't have a correct answer at all. There are a couple of other Q's on this homework that are inaccurate, too.

  73. anonymous
    • one year ago
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    oh ok then that must be it

  74. anonymous
    • one year ago
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    http://prntscr.com/7a2622 (Again disregard the answer)

  75. anonymous
    • one year ago
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    Ya its C

  76. anonymous
    • one year ago
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    since its asking for the Y values (or range values)

  77. anonymous
    • one year ago
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    This was such an easy question. I guess the concept of domain and range to me isn't very clear but I understand now. (Silly me)

  78. anonymous
    • one year ago
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    lol

  79. anonymous
    • one year ago
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    :P

  80. anonymous
    • one year ago
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    http://prntscr.com/7a2796 http://prntscr.com/7a27c5 (It wouldn't fit into my screen)

  81. anonymous
    • one year ago
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    Its A. since it said constant rate that means it has to be a straight line and also it has the ordered pair (5, 300) :)

  82. anonymous
    • one year ago
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    Right. It's linear.

  83. anonymous
    • one year ago
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    yep

  84. anonymous
    • one year ago
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    Are you still willing to help? I know that your time is precious.

  85. anonymous
    • one year ago
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    Yes I am still willing to help i just do my homework while helping others :)

  86. anonymous
    • one year ago
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    I should try that strategy, too. Just know that even though we don't know each other, I can tell you're very kind-hearted taking the time out of your day to serve others for nothing much in return. It's truly appreciated.

  87. anonymous
    • one year ago
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    Thank you for that and no problem :)

  88. anonymous
    • one year ago
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    With that said.. http://prntscr.com/7a28mg

  89. anonymous
    • one year ago
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    It is A.

  90. anonymous
    • one year ago
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    Because the x-intercept is when y = 0, right?

  91. anonymous
    • one year ago
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    And vice versa for the y-intercept.

  92. anonymous
    • one year ago
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    yes thats correct

  93. anonymous
    • one year ago
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    Or its B sorry

  94. anonymous
    • one year ago
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    I'm pretty sure this is correct, but just in case I wanted to check it with you. And why would it be B?

  95. anonymous
    • one year ago
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    because when you set y equal to zero then that goes away leaving you with x = 12

  96. anonymous
    • one year ago
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    because -6(0) = 0

  97. anonymous
    • one year ago
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    Right. Sorry I didn't see that error either.

  98. anonymous
    • one year ago
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    http://prntscr.com/7a2afg

  99. anonymous
    • one year ago
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    I'm not sure what zero of this function means?

  100. anonymous
    • one year ago
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    It means when y is set to zero

  101. anonymous
    • one year ago
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    Also known as the x-intercept

  102. anonymous
    • one year ago
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    oh ok

  103. anonymous
    • one year ago
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    So its D then right?

  104. anonymous
    • one year ago
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    I got the answer by looking at the graph, but it shouldn't be that easy. The f(x) = x/2 - 4 is also throwing me off a bit

  105. anonymous
    • one year ago
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    well the equation f(x) = 1/2x -4

  106. anonymous
    • one year ago
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    When x = 0 the y is -4

  107. anonymous
    • one year ago
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    and if y = 0 then x = 8

  108. anonymous
    • one year ago
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    Horrible homework makers

  109. anonymous
    • one year ago
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    but im pretty sure its asking for the x-intercept

  110. anonymous
    • one year ago
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    http://prntscr.com/7a2e21 You're right

  111. anonymous
    • one year ago
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    They're asking for the x-intercept. So it would be D.

  112. anonymous
    • one year ago
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    Ya ok

  113. anonymous
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    http://prntscr.com/7a2ekm

  114. anonymous
    • one year ago
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    4 would work

  115. anonymous
    • one year ago
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    Since it's absolute value, the answer would ultimately be positive,

  116. anonymous
    • one year ago
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    Yeah

  117. anonymous
    • one year ago
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    but 20/3 would not since it would make a decimal

  118. anonymous
    • one year ago
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    You're right.. again! It can't be the other options either

  119. anonymous
    • one year ago
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    and the other numbers are way to big

  120. anonymous
    • one year ago
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    so theres no answer..... lmao

  121. anonymous
    • one year ago
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    Another mistake.. I'm totally going to contact my teacher about this

  122. anonymous
    • one year ago
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    yeah you definitely should :P

  123. anonymous
    • one year ago
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    http://prntscr.com/7a2ggl

  124. anonymous
    • one year ago
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    I have very few left

  125. anonymous
    • one year ago
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    I could graph this one OR calculate its vertex and ultimately maximum point.

  126. anonymous
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    Ya either one of those methods would work i would prefer calculating to find the maximum point just saying

  127. anonymous
    • one year ago
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    Yeah, we won't always have access to graphing calculators on the exam.

  128. anonymous
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    because your not allowed or you just dont have one?

  129. anonymous
    • one year ago
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    So vertex formula is: x = b/2a, right?

  130. anonymous
    • one year ago
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    Or maybe I mixed it up

  131. anonymous
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    its -b isnt it?

  132. anonymous
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    Right! -b/2a = x

  133. anonymous
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    b = 300 and a = 5

  134. anonymous
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    -(300)/2(5) = -300/10

  135. anonymous
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    = -30

  136. anonymous
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    Hmm... answer choices don't match up

  137. anonymous
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    it would be 300/10 wouldnt it?

  138. anonymous
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    not negative

  139. anonymous
    • one year ago
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    No it's negative because of the "-b"

  140. anonymous
    • one year ago
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    for the x side

  141. anonymous
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    and its also a negative 5 so

  142. anonymous
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    it would end up being 30 = 30

  143. anonymous
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    if im not mistaken

  144. anonymous
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    Okay so it's official that I'm stupid. Thank you for pointing the negative sign of the 5. I didn't see it. So the answer is B = $30.

  145. anonymous
    • one year ago
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    yes lol

  146. anonymous
    • one year ago
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    and your very smart :P

  147. anonymous
    • one year ago
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    honestly

  148. anonymous
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    http://prntscr.com/7a2ley I don't think so.. math is one of my weaker subjects haha

  149. anonymous
    • one year ago
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    The formula for exponential increase is: f(x) = Initial Value(Rate)^x

  150. anonymous
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    ok so

  151. anonymous
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    But I also recall a (1 + r) rate to an exponential function

  152. anonymous
    • one year ago
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    http://prntscr.com/7a2mow <--- This is just a picture. I think that I learned this back in 7th grade about interest, so I believe that my answer is correct.

  153. anonymous
    • one year ago
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    the r is if there is an interest rate

  154. anonymous
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    or no disregard that statement lol

  155. anonymous
    • one year ago
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    Ah, okay. So what are your thoughts?

  156. anonymous
    • one year ago
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    I think its C and ill explain

  157. anonymous
    • one year ago
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    Okay

  158. anonymous
    • one year ago
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    .22 is 22% but 1.22 would be 120% and you would want 120% because it would take the initial population and add the 22% to it as just 22% would only complete half of the problem. do you undersatnd?

  159. anonymous
    • one year ago
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    sorry if i didnt explain that well enough lol

  160. anonymous
    • one year ago
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    Yes, I completely understand where you're coming from. But wouldn't 120% of a growth be too much of a population growth? In a real-world scale, it's not very probable, but then again, in math anything is possible in the real world lol

  161. anonymous
    • one year ago
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    oh your completely right since A (the initial population) is already in the equation.

  162. anonymous
    • one year ago
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    my bad :P

  163. anonymous
    • one year ago
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    So yes its A

  164. anonymous
    • one year ago
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    Yes! I outsmarted the wise one

  165. anonymous
    • one year ago
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    :) Jk jk

  166. anonymous
    • one year ago
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    haha

  167. anonymous
    • one year ago
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    all good

  168. anonymous
    • one year ago
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    trust me its not too hard to outsmart me at times :P

  169. anonymous
    • one year ago
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    http://prntscr.com/7a2r8m I doubt it!

  170. anonymous
    • one year ago
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    is D. y = 88x? or is it just y - 88x? lol

  171. anonymous
    • one year ago
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    D. is y = 88x

  172. anonymous
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    ok

  173. anonymous
    • one year ago
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    I think what they're doing is the simplified version of 40/880

  174. anonymous
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    So It would most likely be B

  175. anonymous
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    Yes that is correct

  176. anonymous
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    i wouldn't to try and outsmart you if math is your weaker subject :P

  177. anonymous
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    |dw:1432751159345:dw|

  178. anonymous
    • one year ago
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    It's A

  179. anonymous
    • one year ago
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    you mean divided by 20 right?

  180. anonymous
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    No, by 2… it's kinda how I simplify fractions in my head

  181. anonymous
    • one year ago
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    I cancelled out the zeroes

  182. anonymous
    • one year ago
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    oh yes i understand ok lol see i told you its not to hard to outsmart me :P

  183. anonymous
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    |dw:1432751466669:dw|

  184. anonymous
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    Same answer lol

  185. anonymous
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    for sake of me learning now lol why is the 40 the numerator and not the 880?

  186. anonymous
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    you dont have to explain if you dont want to :P

  187. anonymous
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    Oh pretend that it's not a fraction.. I just divided both numerator and denominator by 40.

  188. anonymous
    • one year ago
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    I usually write it that way, but in my prior drawing, I wrote it by adding in small 2's so you wouldn't get confused, sorry, my mistake haha

  189. anonymous
    • one year ago
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    no i understand that but for the equation why is it 40/880 and not 880/40

  190. anonymous
    • one year ago
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    Oh! It was the most logical way to go in my opinion. But you bring up a valid point.. or else it would've been 22/1.

  191. anonymous
    • one year ago
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    ya

  192. anonymous
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    im not sure which way it should be set up

  193. anonymous
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    Hours is an independent value. Time is always an independent variable. x ALWAYS represents independent values because the y is dependent. Does that make sense? Since Mrs. Marez worked for 40 hours, then 40 would represent x. Usually it's x/y, because it represents the relationship between both x and y. However, the rate of change is: y2 - y1 / x2 - x1

  194. anonymous
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    In other words, it's y/x… so now I'm truly split between this

  195. anonymous
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    I believe that the relationship refers to slope.

  196. anonymous
    • one year ago
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    ok so lets just say the answer is y = 22x. it says last week she earned $880 and its asking for her weekly earnings. so if we multiplied 22 by 40 that would equal her weekly income of $880. now if we multiplied 1/22 by 40 that would be 1.8

  197. anonymous
    • one year ago
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    So im pretty sure it is B now lol

  198. anonymous
    • one year ago
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    does that make sense?

  199. anonymous
    • one year ago
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    Definitely. (See, you outsmarted me again)

  200. anonymous
    • one year ago
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    http://prntscr.com/7a2wi6

  201. anonymous
    • one year ago
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    hahaha that seemed harder than it should have been

  202. anonymous
    • one year ago
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    Another sequence problem ^^

  203. anonymous
    • one year ago
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    right lol

  204. anonymous
    • one year ago
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    i would guess B

  205. anonymous
    • one year ago
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    I would guess either C or D because B would be the 6th value.. not the 8th

  206. anonymous
    • one year ago
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    but im not exactly sure what the pattern is

  207. anonymous
    • one year ago
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    so u think the fractions are multiplying by 2?

  208. anonymous
    • one year ago
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    |dw:1432752458487:dw|

  209. anonymous
    • one year ago
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    The last three have a pattern and the first two have a separate pattern

  210. anonymous
    • one year ago
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    i saw that as well

  211. anonymous
    • one year ago
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    so D then correct?

  212. anonymous
    • one year ago
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    I think D is the answer

  213. anonymous
    • one year ago
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    ya and the numerator is multiplying by 2

  214. anonymous
    • one year ago
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    Brb for 5 mins

  215. anonymous
    • one year ago
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    ok

  216. anonymous
    • one year ago
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    just tag me in the chat when you're back :)

  217. anonymous
    • one year ago
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    I sincerely apologize @Chumpian my internet connection was reset

  218. anonymous
    • one year ago
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    I have 5 or 6 Q's left if you're up for it

  219. anonymous
    • one year ago
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    im up for it :)

  220. anonymous
    • one year ago
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    Thank you! http://prntscr.com/7a3hj7

  221. anonymous
    • one year ago
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    Please disregard the answer I chose.. it's a random guess as I didn't look at the Q

  222. anonymous
    • one year ago
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    It's C right?

  223. anonymous
    • one year ago
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    Ya it's C

  224. anonymous
    • one year ago
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    Let me check

  225. anonymous
    • one year ago
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    Yup! It's C.

  226. anonymous
    • one year ago
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    http://prntscr.com/7a3kpt I put the #'s in order

  227. anonymous
    • one year ago
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    School A: 1300, 1350, 1350, 1370, 1400 School B: 1300, 1350, 1375, 1400, 1410

  228. anonymous
    • one year ago
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    C is correct for the first part

  229. anonymous
    • one year ago
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    I think #45 and #46 are separate Q's and aren't two part Q's

  230. anonymous
    • one year ago
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    ok i thought so as well

  231. anonymous
    • one year ago
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    Is #46 D?

  232. anonymous
    • one year ago
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    I'm not sure

  233. anonymous
    • one year ago
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    Wait no it says least likely to be a normal distribution, so it's either A or B

  234. anonymous
    • one year ago
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    It would be B then right?

  235. anonymous
    • one year ago
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    How old are you just curious?

  236. anonymous
    • one year ago
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    Not sure because it can't be a normal distribution if they're asking for 14-year old girls outside New York.. meaning everywhere around the world.

  237. anonymous
    • one year ago
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    I'm 12 but I take advanced class and skipped two grades

  238. anonymous
    • one year ago
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    classes*

  239. anonymous
    • one year ago
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    :0

  240. anonymous
    • one year ago
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    im embarrassed now lol

  241. anonymous
    • one year ago
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    Why? No need to be but how old are you?

  242. anonymous
    • one year ago
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    I'm 16

  243. anonymous
    • one year ago
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    Most of my friends are 15+ haha

  244. anonymous
    • one year ago
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    and your just as smart if not smarter than i am lol

  245. anonymous
    • one year ago
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    I don't think so… you have more experiences being older than I am. Although you may be in Alg 2 (assuming you're in 10th/11th grade) you still take other courses that are totally not equivalent to an 8th graders'.

  246. anonymous
    • one year ago
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    true true but back to the Q im not sure what it is :(

  247. anonymous
    • one year ago
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    It's fine! I put in A. http://prntscr.com/7a3qw7 Last question and you're free of me! :)

  248. anonymous
    • one year ago
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    It would be D :)

  249. anonymous
    • one year ago
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    Yup! Just checked. Thank you so, so much.

  250. anonymous
    • one year ago
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    np ;)

  251. anonymous
    • one year ago
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    Just tag or message me if im on if you want any help

  252. anonymous
    • one year ago
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    I'll let you know what I get in about 10-15 mins (only if you want to) as I do the other Q's :) Have a great rest of the day!

  253. anonymous
    • one year ago
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    ok you too :)

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