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June 2009 Integrated Algebra 31 – 39

June 21, 2009 am30 9:08 am

For the answers to the multiple choice, click here.
For the conversion chart, click here.

Notice: Feel free to try to answer other people’s questions.
Notice: before asking a question, read the previous comments to see if yours has already been answered

Notice: I have not seen the key. If you see I’ve made a mistake, leave a note.

Notice: New York State sets scoring rules in strange ways. I can guess how many points something will cost, but it is only a guess.

Part II

31. 60
Arrange 3 letters out of ANGLE. 5 \times 4 \times 3 or _{5}P_3 I guess you need the answer and one of those (or a list) for 2 points

32. 4x(x + 3)(x – 3)
Partial factoring, eg. x(2x + 6)(2x – 6) will probably be worth 1 point.

33. 1/8; or .125
You probably need to show the sample space at 8 (either 10 – 2 or a list of books with 2 crossed off, including 1 English book)

Part III

34. 56
This was the trapezoid in a circle. This question involved far too much real work for 3 points. Use the circumference, 16π, to calculate the diameter, 16 (DA). Get the other base of the trapezoid (BC) to be 3/4s of the diameter, 12. Apply area formula for trapezoid (avg of bases * ht) = 4 * (16 + 12)/2 = 56. If you did SOMETHING right, at least one point. An answer with no work is usually 1 point. If you only had one mistake, it could be 1 or 2, depending on the nature of the error. (The State likes taking 1 point for calculation, 2 points for conceptual errors). Note, the diagram was waaaay not to scale. That trapezoid should take about a quarter of the circle, but in the diagram it takes almost half.

35. $5583.86
The interest problem. $5000. At 3.75%. Over 3 years. To the nearest cent. Slow, steady: Take 3.75% of $5000. Add it to $5000. Take 3.75% of the result. Add that. Repeat. Fast way: 5000(1 + 0.0375)^3 I have no idea how they will score this problem (3 pts). If it were me, I would award at least one to a kid who converted to the right percent. Really. Or, one point for getting the first year interest, and stopping, or just tripling it. We’ll see.

36. Correctly plotted points. An estimated line of best fit drawn. An equation for the line. Close to y = 5x + 25
You should have a 0 on both axes.  The line should be straight, and pass near most points. Slope should be between 3 and 6, around 5 is good. Y-intercept should be in the mid-20s, though into the low 30s might work.
This is not a good question. You should know what a line of best fit is, but I don’t think we should be guessing at them, eyeballing them. Plus, even if you think the best line is a smidge steeper, the State is rewarding you for picking an easy-to-calculate slope. Bad State.

Part IV

37. 39 feet; 63 feet
You probably use tangent to find the distance from the pole to the stake, and then either sine or the pythagorean theorem to find the length of the wire. I’ll bet they take off 2 for messing up either one of these, plus they’ll take 1 if you don’t round, or don’t round correctly. Bravo, by the way, to those of you who saw Pythagoras and used him.

38. Completed table; Completed histogram. Freqs: 4; 5; 4; 8; 7; 2
I’m guessing you lose 2 for making a cumulative freq hist instead, but that’s a guess.

39. (5,-4) and (-1,8)
Correctly graphed line (y int 0,6, drops steeply to the right); Correctly graphed parabola (vertex at 3,-8, opens up, y int 0,1); 2 points of intersection marked, labeled. Many deductions will come from carefully drawn graphs, but no solution labeled.

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188 Comments leave one →
  1. someone permalink
    June 21, 2009 am30 9:21 am 9:21 am

    for 32 isnt it 4x(x+3)(x-3) the gcf was 4x not just 4

    • June 21, 2009 am30 9:23 am 9:23 am

      Yes, thank you. Corrected.

      • ACLA permalink
        June 22, 2009 pm30 10:23 pm 10:23 pm

        What is the question for #32?

      • sdsddssdsd permalink
        August 9, 2009 pm31 3:37 pm 3:37 pm

        help number 37

        • Anonymous permalink
          June 1, 2010 pm30 7:08 pm 7:08 pm

          Thank you so much whoever created this, you helped me so much on my home work. I take the 2010 regents in two weeks! =)

    • Anonymous permalink
      June 21, 2009 pm30 5:16 pm 5:16 pm

      wait… for number 32. could u of put 4x(x-9)?????

      • Anonymous permalink
        June 22, 2009 pm30 12:18 pm 12:18 pm

        no you cant put that as your answer bec. 4x(x-9) only gives you 4x to the 2 minus 9
        it will look like this,4×2 -9 but the origenal was 4×3-9

    • Anonymous permalink
      June 21, 2009 pm30 10:04 pm 10:04 pm

      For 32 I also put
      4X(X-9)
      woudln’t tht be correct?>

      • Anonymous permalink
        June 22, 2009 pm30 12:19 pm 12:19 pm

        no you cant put that as your answer bec. 4x(x-9) only gives you 4x to the 2 minus 9
        it will look like this,4×2 -9 but the origenal was 4×3-9
        Reply

    • Becky permalink
      July 23, 2009 pm31 2:36 pm 2:36 pm

      Yes..

    • Becky permalink
      July 23, 2009 pm31 2:38 pm 2:38 pm

      yes

  2. brad forman permalink
    June 21, 2009 am30 9:28 am 9:28 am

    not all of this is completely right!

  3. someone smarter than u permalink
    June 21, 2009 am30 9:30 am 9:30 am

    wow ur an idiot. number 37 wasnt pathagorean theorum. u needed to use the sin/cos/or tan! and how do u kno that all the answers u gave are all right?!!?

    • June 21, 2009 am30 9:43 am 9:43 am

      Once you have 50 and 39.06 (the two legs of the right triangle) you can use the Pythagorean theorem to find the hypotenuse. a^2 + b^2 = c^2, right?

      • xxx permalink
        June 21, 2009 am30 9:44 am 9:44 am

        how did u get 39?

      • Anonymous permalink
        June 21, 2009 am30 9:52 am 9:52 am

        yea thats right 39×39 + 50×50 will equal the hypotenuse..which is 63 i think

      • jeff permalink
        June 21, 2009 pm30 12:45 pm 12:45 pm

        Yes, but it’s not the best idea to use pythagorean theorem since you rounded one side. Just to be accurate and completely sure I got the right answer, I used trig.

        • June 21, 2009 pm30 12:48 pm 12:48 pm

          I’ll respond, despite that god-awful e-mail account name.

          If you are doing trig on the calculator, you have the unrounded side on display after you got the first answer. Square it, add 2500, take the square root…

          That avoids the rounding issue. (You are right, if you round first, you can get into trouble)

      • Anonymous permalink
        June 22, 2009 pm30 7:16 pm 7:16 pm

        sure. once you find the measure of the side adjacent to 52 degreesm which is 30 feet, you can use either the Pythagorean Theorem to find the length of the wire from the stake to the top of the pole or find the sine of 52 degrees, which is 50/x.

    • Jaclyn permalink
      June 22, 2009 pm30 3:36 pm 3:36 pm

      this person did all this work just so you could check your answers…. do notttttt call them an idiot.

    • anonymous permalink
      June 22, 2009 pm30 5:00 pm 5:00 pm

      Yes you did have to use pythagorean theorem ( a^2 + b^2 = c^2 ) to get the length of the wire! The 1ST part of it was either TAN/SIN/COS, THEN it was pythagorean theorem. Before you call someone an IDIOT you need to check yourself first, not to start drama, but watch yourself. This person, just like Jaclyn said, did all of this work, typing all of this , taking their time out for YOU, and your gonna call them an idiot. ANYWAYS, thank you for posting these answers, cuz in my class im the TOP in my class so i checked them and YES these answers are correct! (But you can also use cos i believe besides pythagorean theorem, but pythagorean theorem, to me, is easier)

      • Justin permalink
        June 2, 2010 pm30 10:04 pm 10:04 pm

        For the trapezoid problem, pythagorean theorum wasn’t needed. The height of CE is 4 inches so the height of the center point of the circle to the top of the trapezoid is 4 inches as well. The length of AD is 16 inches and the length of the top line (can’t remember the letters) is 3/4 of AD which is 12 inches. The area of a trapezoid is 1/2h(b1 + b2) => 1/2 x 4 ( 12 + 16 ) which equals 56 inches squared.

        For the factoring problem, 32 I believe is (4x^3 – 36) => 4x(x^2 – 9) which factors into 4x( x + 3 )( x – 3)

  4. jman permalink
    June 21, 2009 am30 9:33 am 9:33 am

    do u know where u can get a copy of the actual regents? to see the questions? cuz i’m pretty sure u made a lt of mistakes

  5. Anonymous permalink
    June 21, 2009 am30 9:38 am 9:38 am

    F0r #33, the problem had one of the girls take an English book so before Truman had to randomly pick a book so shouldn’t the answer be 1/8?

    • June 21, 2009 am30 9:40 am 9:40 am

      Yes. Corrected. Thank you.

    • June 25, 2009 am30 11:05 am 11:05 am

      i got 1/4 and how did you get 1/8 please show me

      • lalalal:] permalink
        June 25, 2009 pm30 10:46 pm 10:46 pm

        there was 10 students and 2 textbooks were taken out so you subtract that and its 8. There were 2 english books but because one was taken out its 1/9 and since there was another book taken out its 1/8.

  6. xxx permalink
    June 21, 2009 am30 9:40 am 9:40 am

    #33 is 1/8
    cuz it said some girl took one English book so there r only one english book left

  7. xxx permalink
    June 21, 2009 am30 9:41 am 9:41 am

    um… i dont think u got #37 correct

  8. zelo permalink
    June 21, 2009 am30 9:51 am 9:51 am

    There were 2 parts to #37. The first one you must use tan. The second part you can use the pythagorean theorem, since you already know the length between the stake and the pole.

    • June 21, 2009 pm30 8:11 pm 8:11 pm

      At first I used cosine. When I was checking my work, I freaked out because I made a huge mistake in PEN! So, I had to cross everything out and show my new work in a teeny, tiny corner that I left behind. I hate my huge handwriting. :)

  9. anonymous permalink
    June 21, 2009 am30 10:01 am 10:01 am

    please post Q32

    • June 21, 2009 am30 10:13 am 10:13 am

      Factor completely: 4x^3 - 36x

      • anonymous permalink
        June 21, 2009 pm30 6:00 pm 6:00 pm

        Do you have the #’s for 38

      • ACLA permalink
        June 22, 2009 pm30 10:25 pm 10:25 pm

        im not sure if i got this one correct….so do u mind showing me how to do it?

        thx!

  10. June 21, 2009 am30 10:08 am 10:08 am

    question 36 is wrong it is y=x+25

  11. anonymous permalink
    June 21, 2009 am30 10:11 am 10:11 am

    in the line of best fit, I don’t recall the slope being that steep.

    • June 21, 2009 am30 10:14 am 10:14 am

      You probably used different units on the x- and y- axes. Most students let 1 box equal 1 day (x) but 5 tickets (y). As a result, a slope of 5 looks like a slope of 1 on a normal graph.

      • anonymous permalink
        June 21, 2009 am30 10:21 am 10:21 am

        how many pts off for the wrong slope would you guess?

  12. June 21, 2009 am30 10:35 am 10:35 am

    if u forget to put a break on the graph will you lose all 4 points

  13. someone permalink
    June 21, 2009 am30 10:35 am 10:35 am

    for #34 i thought it said area is 16 pi so i did everything right except i got 28 bec since i thought it was area so the diameter was half it should be . how many points do u think i will get off?

    • June 21, 2009 am30 11:18 am 11:18 am

      I would take off one. I bet the State wants us to take off 2.

    • June 25, 2009 am30 11:16 am 11:16 am

      i got 64 because i didnt really understand. but when i was checking over i got 54. how many points am i going to get take off for that.

  14. someone permalink
    June 21, 2009 am30 10:38 am 10:38 am

    for #36 i got y=x-2

  15. June 21, 2009 am30 10:40 am 10:40 am

    please answer, how many points would i get off for writing the wrong slope on 36 or forgetting to put a break on the histogram. =[

  16. Anonymous permalink
    June 21, 2009 am30 10:46 am 10:46 am

    all of these answers seem correct to me… but when i entered the formula for line of best fit on my calculator i got 4.5x + 27.3 …. do you think they will accept that?

    • Anonymous permalink
      June 21, 2009 am30 10:56 am 10:56 am

      I think they’ll accept that, I also used the calculator. There will probably be a range in slopes and y-intercepts so I don’t think you have to worry too much.

  17. Aaron permalink
    June 21, 2009 am30 10:53 am 10:53 am

    If for 38 i messed up and got 7 instead of 8 and 5 instead of 4 how many points they take off. Also if i
    made my graphs labeled them but only labeled 1 solution how many points wud they take off

    • June 21, 2009 am30 11:24 am 11:24 am

      These are the sorts of questions that are often not clear even after we see the rubric (which I haven’t).

      If you forced me to guess, I’d take off one point in the first instance (counted one number in the wrong category) and I’d take off two points (maybe one?) in the second, since the error seems to be conceptual.

      But these are guesses.

  18. Anonymous permalink
    June 21, 2009 am30 11:02 am 11:02 am

    i didnt label the solutions on my graph-i wrote them outside of the graph though. is this okay?

  19. Anonymous permalink
    June 21, 2009 am30 11:19 am 11:19 am

    #36
    i did it on my calculator and got y=4.5x+27 but on my graph i just drew a random line that passed through or near all the points. will they accept that?

    • Anonymous permalink
      June 21, 2009 pm30 8:02 pm 8:02 pm

      yes i did the same! is it acceptable??

      • June 22, 2009 pm30 1:26 pm 1:26 pm

        If you drew the graph and used the calculator to find the line of best fit, then I would grade it correctly. There is no single equation in the rubric because the “reasonable” line of best fit can vary.

        When I made my own answer key on Friday, I used y= 5x + 25, which looked reasonable to me.

        This is one of those questions that is better left to technology if they want a more accurate answer — and why not, if the accuracy is there for all who can do it.

  20. anonymous permalink
    June 21, 2009 am30 11:20 am 11:20 am

    please post questions.

  21. Anonymous permalink
    June 21, 2009 am30 11:22 am 11:22 am

    what would happen if i drew my parabola and line but it only showed one solution.
    like i know it would cross at two points, but on my graph it only showed one of them because i didn’t draw my parabola as long.

  22. julie permalink
    June 21, 2009 am30 11:25 am 11:25 am

    for the last question i knew it would cross at two points, but i didn’t draw my parabola long enough and so it only showed one intersection .
    but i drew arrows on the parabola to showed that it went on.
    would i get off for only saying one intersection

    • June 21, 2009 pm30 12:32 pm 12:32 pm

      There’s definitely a deduction – and there’s definitely some credit. Out of 4? You could get 1, 2, or 3. They’ve been harsh on this kind of error (you should have known to look for a second point) so I’ll guess that you might get 2, but probably just 1 point.

  23. yay permalink
    June 21, 2009 am30 11:31 am 11:31 am

    I just took it this Friday, and it seems like I did ok.

  24. yay permalink
    June 21, 2009 am30 11:39 am 11:39 am

    I didn’t use my calculator, I just used y2-y1/x2-x1 = slope.

  25. Aaron permalink
    June 21, 2009 am30 11:49 am 11:49 am

    Thank you do you know what the multiple choice question to 7 was

  26. Anonymous permalink
    June 21, 2009 am30 11:56 am 11:56 am

    how many points would i lose if didnt write an equation of a line?

    • June 21, 2009 pm30 12:34 pm 12:34 pm

      I’m going to guess a 2 point deduction. But it’s only a guess.

  27. Krystle permalink
    June 21, 2009 pm30 12:05 pm 12:05 pm

    can you please post the questions cus i barely remmber what i put lol.

  28. anonymous permalink
    June 21, 2009 pm30 12:05 pm 12:05 pm

    for the factoring question, if i did 4x(x-9) would i get any credit?

    also for the tan and pathoris question i did the right formulas i guess you could say but i think i got 46 and 68, would i receive any credit for that?

    and lastly any news on the scoring sheet yet?

    • June 21, 2009 pm30 12:38 pm 12:38 pm

      1. The factoring question is worth 2, so you could get either 0 or 1 point. It looks like 0, since even that step is wrong. But I am not certain, without the rubric, that there is not a more positive interpretation.

      2. Right formulas? It depends on exactly what you did.

      3. We have the score sheets, I just haven’t seen them. The conversion chart is on-line (this list has the conversion charts for all the regents that took place last week): http://www.emsc.nysed.gov/osa/concht/june09/home.html

      • anonymous permalink
        June 21, 2009 pm30 8:59 pm 8:59 pm

        i mean that i did tan and then patagoris, but i got the wrong numbers

        • anonymous permalink
          June 21, 2009 pm30 9:06 pm 9:06 pm

          and i think it was 4x^2 not 4x, does that change anything?

  29. Jeff permalink
    June 21, 2009 pm30 12:18 pm 12:18 pm

    Can i find the actual exam anywhere?

    • June 21, 2009 pm30 12:39 pm 12:39 pm

      JMAP will post it, soon. Probably tomorrow.

      • June 21, 2009 pm30 8:08 pm 8:08 pm

        I hope so! I’d like to look at it again.

        • June 21, 2009 pm30 8:16 pm 8:16 pm

          This is my second regents in total, so I’m pretty frightened about my score.

  30. June 21, 2009 pm30 12:21 pm 12:21 pm

    my answer for the question that asked u to find the area of a trapezoid was 56 inches squared

  31. anonymous permalink
    June 21, 2009 pm30 12:22 pm 12:22 pm

    please post Q21

  32. anonymous permalink
    June 21, 2009 pm30 12:27 pm 12:27 pm

    what were the original equations for 39?

  33. June 21, 2009 pm30 12:30 pm 12:30 pm

    for question 31 my answer was 15 which is wrong. would i get any points is i showed a tree diagram?

    • June 21, 2009 pm30 8:31 pm 8:31 pm

      Depends on the tree. You might get 1. You might get 0.

  34. moshe permalink
    June 21, 2009 pm30 12:38 pm 12:38 pm

    where can i find the conversion chart

  35. moshe permalink
    June 21, 2009 pm30 12:39 pm 12:39 pm

    on 39 lets say i only got 1 point of int. how many points deducted???

  36. Anonymous permalink
    June 21, 2009 pm30 12:41 pm 12:41 pm

    how many points will be taken off if i made one rounding error in question 35

  37. Anonymous permalink
    June 21, 2009 pm30 1:08 pm 1:08 pm

    for number 35 how many points will i get of for using PRT(5000)(.0375)(3)

    • June 21, 2009 pm30 8:32 pm 8:32 pm

      Depends on the rubric. I’m guessing you’ll only earn 1 point, but it could even be 0. We have to see what the State asked for.

  38. anonymous permalink
    June 21, 2009 pm30 1:09 pm 1:09 pm

    what were the #’s in 38

  39. Anonymous permalink
    June 21, 2009 pm30 1:16 pm 1:16 pm

    for numer 35 how many points will i get off for using PRT and just multiplying the 3 numbers?

    • June 22, 2009 pm30 1:29 pm 1:29 pm

      Assuming all your work was shown and all other steps are correct, that would be one conceptual error. That would be worth 1 point.

      Your answer would have been $5,562.50

  40. ??? permalink
    June 21, 2009 pm30 1:22 pm 1:22 pm

    would u looser points if u rote for #34 56 pi? if yes, how many points?

  41. jon Renzulli permalink
    June 21, 2009 pm30 1:32 pm 1:32 pm

    i think you got 37 wrong. the hypotenuse came out to be 81.

  42. jon Renzulli permalink
    June 21, 2009 pm30 1:33 pm 1:33 pm

    and i put y=x+30 for the equation on the best fit line….do you think they’ll take that?

    • June 21, 2009 pm30 8:33 pm 8:33 pm

      No. It’s a 3-point question. I don’t know if they will deduct 1 (my guess) or 2 (I’m often wrong).

  43. jon Renzulli permalink
    June 21, 2009 pm30 1:36 pm 1:36 pm

    and i dont think 39 was the other length of one of the sides of the triangle. along with the exponential growth question, i put 5583.90. will i actually get points off for that

    • June 21, 2009 pm30 8:34 pm 8:34 pm

      You should lose 1 point for a rounding error.

  44. Anonymous permalink
    June 21, 2009 pm30 3:00 pm 3:00 pm

    wouldnt dat b unfair 2 take off 2 points from a question thats 3 points for not doing the equation of the line?

    • June 21, 2009 pm30 8:35 pm 8:35 pm

      Yes. The rules for grading these are often unfair. Teachers are more upset about the rules than students!

  45. Leverich permalink
    June 21, 2009 pm30 3:23 pm 3:23 pm

    They didn’t ask for the solution to be marked.

    • June 21, 2009 pm30 8:08 pm 8:08 pm

      I circled all my answers – just in case. But I think my teacher will get my point.

    • June 21, 2009 pm30 8:36 pm 8:36 pm

      They said “solve” – so you need to show them a solution. I don’t know if having the curves cross is going to be good enough. Maybe.

      • June 21, 2009 pm30 8:42 pm 8:42 pm

        I’m sorry. I forgot to mention that I wrote out all of my answers as well.

  46. Leverich permalink
    June 21, 2009 pm30 3:27 pm 3:27 pm

    For number 37 if you use tangent which is opposite over adjacent and the measure of the angle was 52 degrees and the opposite side is 51 and then the adjacent would be x so if you divided tan 52 by 51 you would come out with a decimal wouldn’t you?

  47. Michelle yo permalink
    June 21, 2009 pm30 3:32 pm 3:32 pm

    i messed up for question 39 but i didnt circle the solution and i didn’t put the correct solution but i graphed it correctly and i put the chart from my calculator in it. how many points will i get off?

  48. Anonymous permalink
    June 21, 2009 pm30 3:35 pm 3:35 pm

    Can someone(anyone) please show the questions?

  49. someone permalink
    June 21, 2009 pm30 3:36 pm 3:36 pm

    how do u find the equation to q #36

    • Anonymous permalink
      June 21, 2009 pm30 4:26 pm 4:26 pm

      you just make a line through two (or more) points you feel would make “the best fit line”. You use those points to find the slope(y2-y1 over x2-x1) then you use one point and plug it into y=mx+b. That would be the equation

  50. June 21, 2009 pm30 3:39 pm 3:39 pm

    what was the data for the histogram

  51. Anonymous permalink
    June 21, 2009 pm30 6:28 pm 6:28 pm

    how much is each multiple choice?

  52. Anonymous permalink
    June 21, 2009 pm30 6:36 pm 6:36 pm

    does anyone remember #9 w sq rt of 34 as the answer?

  53. ooooooooowow permalink
    June 21, 2009 pm30 6:41 pm 6:41 pm

    Can you post the questions for numbers 7, 12 and 15 please? Thanks!!
    Also, I know this is really really stupid, but I forgot to write the solutions to the very last problem. I just drew the lines. Is that full 4 points off?

    • June 21, 2009 pm30 8:37 pm 8:37 pm

      tall enough to ride
      numbers add to 47, difference is 15
      box and whisker

  54. Anonymous permalink
    June 21, 2009 pm30 6:43 pm 6:43 pm

    I used simple interest to find the answer to number 35 and I got a different answer. How many points will I lose?

    • June 21, 2009 pm30 8:37 pm 8:37 pm

      I’m guessing you’ll only get one point for that.

  55. June 21, 2009 pm30 7:11 pm 7:11 pm

    How many points off for y = x + 25 on line of best fit question?

    • June 21, 2009 pm30 8:07 pm 8:07 pm

      Umm, wasn’t it y=4.5 to 5X minus 25 to 27.3?

      • June 21, 2009 pm30 8:13 pm 8:13 pm

        I mean a range. Like the slope could be from 4.5 to 5X and the y-intercept could be in the high 20s…

        • June 22, 2009 am30 11:22 am 11:22 am

          I know, I did the wrong slope. What I’m saying is how many points would I get off for not putting 4x + 25 as the slope, but rather x + 25?

  56. June 21, 2009 pm30 8:06 pm 8:06 pm

    Hi, I’d just like to say this is pretty useful. I remember most of my answers, so I checked them against these. I used my graphing calculator for most of the problems, and I checked my work on Friday with actual pen and paper. I think I got most of the problems correct, but tomorrow I will find out my actual score from my math teacher.

    I’d also like to say thanks for taking time to do this. I was looking everywhere for some answers! :)

  57. June 21, 2009 pm30 8:17 pm 8:17 pm

    Is this what they mean by allowing basic XHTML?

    • June 21, 2009 pm30 8:26 pm 8:26 pm

      You can use a few bits of HTML. I think (b)bold(/b), (a)link(/a), (i)italics(/i) are the major ones. Just instead of parentheses, use less than and greater than. WordPress will correctly interpret.

      Also, you can use latex, which is way cool, if you can figure it out. I put some simple directions here.

      Latex let’s you type real fractions and square roots and math symbols and things like this: \frac{H}{H_A} \ll 1

  58. JStudent permalink
    June 21, 2009 pm30 8:20 pm 8:20 pm

    I’d just like to say thank you thank you thank you for posting these answers up so quickly…I think I might have lost a few credits here and there. For the bank problem with the 3.75% and everything, how many points do you think they will deduct if I rounded to the nearest “ten cent” or something? Like, I put 90 cents instead of 86 because I read the requirements wrong. Also, what if our line of best fit was a little off? For that question, would they be lenient and accept a different range of y-intercepts, for example from 20-30? Thanks!

  59. June 21, 2009 pm30 8:28 pm 8:28 pm

    for the second part of 37 i still got the right answer even though i used cos instead of using pytagoreon therom

  60. June 21, 2009 pm30 8:30 pm 8:30 pm

    and for the line of best fit i got it right but my teacher said u can’t shorten the really long numbers you get for the equation in the calculator. so i wasted my time writing it all out.

    • Anonymous permalink
      June 21, 2009 pm30 8:33 pm 8:33 pm

      mg…what was question 7&9

      • June 21, 2009 pm30 8:34 pm 8:34 pm

        idk

        • June 21, 2009 pm30 8:36 pm 8:36 pm

          how bout 12 or 16

  61. June 21, 2009 pm30 8:33 pm 8:33 pm

    i mean sin

  62. Anonymous permalink
    June 21, 2009 pm30 8:42 pm 8:42 pm

    Number 35 is incorrect. If you use the formula I=prt the following is the answer. (It stated that the ANNUAL interest was 3.75%)
    -I=prt
    -I=(5000)(.0375)(3)
    -I=$562.5 (rounded to the nearest percent is $562.20)

    • Grateful Girl permalink
      June 21, 2009 pm30 8:52 pm 8:52 pm

      Sorry, Anonymous. You must use the formula A=P(1+r) to the power of t because we’re dealing with compound interest, not simple interest.

      A = the amount of money you have over time
      P = original amount of money invested
      r= interest rate (must be in decimal form)
      t = time in years (for this problem)

      • June 25, 2009 am30 1:07 am 1:07 am

        grateful girl seriously who do you think you are telling people they did the wrong thing and correcting them and acting like your so much smarter than everyone else whos commenting on here.

  63. Grateful Girl permalink
    June 21, 2009 pm30 8:50 pm 8:50 pm

    I’m still wondering why the State did away with Math A. I don’t think there’s a good enough excuse, no matter what they say. I wanted to take a stab at that test, and have it count, as well. Oh, well. What’s done is done. But what did they replace/plan to replace Math B with? Algebra 2/Trigonometry? Gross.

    • Mr. W permalink
      June 22, 2009 am30 12:13 am 12:13 am

      It’s kinda like the old system New York had in place before Math A and Math B… for 50-60 years Regents had a three course sequence which will align very closely to the three course sequence now (algebra, geometry, trig). For years, New York just called this sequence:
      Sequential 1 (algebra)
      Sequential 2 (geometry)
      Sequential 3 (trigonometry)

  64. tony permalink
    June 21, 2009 pm30 9:17 pm 9:17 pm

    Wait, in question 39, i dont remember the question asking to state the intersection points.

  65. Anonymous permalink
    June 21, 2009 pm30 9:42 pm 9:42 pm

    Doesn’t the line of best fit depend on the scale used for the graph can someone post the values for the graph the day / amount of prom

  66. June 21, 2009 pm30 9:52 pm 9:52 pm

    could you post the frequency chart please i want to know why i got off two points

  67. June 21, 2009 pm30 9:53 pm 9:53 pm

    could you please post question 38 including the chart

  68. June 21, 2009 pm30 9:56 pm 9:56 pm

    part 1 questions are worth 2 points

    part 2..is worth 3 points a questions

    part 3 is worth 4 points a question

    is this correct???

  69. June 21, 2009 pm30 10:10 pm 10:10 pm

    part 1 (multiple choice) 2 pts each
    part 2 – 2 pts each
    part 3 – 3pts each
    part 4 – 4 pts each

  70. Anonymous permalink
    June 21, 2009 pm30 10:32 pm 10:32 pm

    is there a copy of the exam available?

  71. Pete G permalink
    June 21, 2009 pm30 10:46 pm 10:46 pm

    Did anyone realize mistake on #34. CE does not = 4

    • June 21, 2009 pm30 10:50 pm 10:50 pm

      damn. I knew it wasn’t to scale. to get the ratio 3:4 the central angle needs to be about 40 degrees. But no, I didn’t stop to look at the altitude. Of course it makes no sense. Thank you.

      • June 22, 2009 am30 5:46 am 5:46 am

        so does that mean 2/3x+30 would be closer to the correct answer?

        • June 22, 2009 am30 6:02 am 6:02 am

          oops! wrong question.

      • ACLA permalink
        June 22, 2009 pm30 10:42 pm 10:42 pm

        for that question i believe i got 28

  72. Anonymous permalink
    June 22, 2009 am30 8:22 am 8:22 am

    for # 31, I put they could only make 1 word for Angel, such as Leg without repating any of the letters. Then I put an explanation that since there is only 5 letters, you can’t make another word, because it is less than double the letters.
    t
    for number 37 and 38, I switched the tan and sin. for 37, I got 39, but didn’t use the pyathgorean therom

    and for 38, I got 52 b/c I used sin for that one, how many points would be taken off?

    For 39, How many pts would be taken off if you didn’t write the intersecting point, b/c I don’t think that said that in the directions

    I’m really nervous!!

    • ACLA permalink
      June 22, 2009 pm30 10:43 pm 10:43 pm

      i got the correct answer…but i blanked out and forgot how to do the tree diagram so i explained what i did….would i get full credit?

  73. happy permalink
    June 22, 2009 pm30 3:10 pm 3:10 pm

    great stuff this was a big help, way to get it all out in the open! thanks!

  74. Anonymous permalink
    June 22, 2009 pm30 3:30 pm 3:30 pm

    For the prom ticket one with the scatter plot, i wrote the equation separately but not on the graph. Will that lose points? And for the parabola and line, I didn’t mark the solutions on the graph but wrote them above the graph and circled it. Is that fine as well? Thanks for posting the answers as well!!

    • June 25, 2009 am30 1:04 am 1:04 am

      im pretty sure that would be good cause u did everything they asked but i probably got one point off on that question cause i didnt state both solutions

  75. ananana permalink
    June 22, 2009 pm30 3:43 pm 3:43 pm

    for number 36 it should be a slope of 1 not 5 it is clearly stated if u did the math correctly

  76. anonymous permalink
    June 22, 2009 pm30 5:02 pm 5:02 pm

    say you accidently forgot to draw the best fit line…..*oops*….how many points would you lose?

  77. Santiago permalink
    June 22, 2009 pm30 7:25 pm 7:25 pm

    For number 33, wasn;t there 7 books to start out with. 2 English, 1 something else, and 4 Social Studies?

  78. Anonymous permalink
    June 22, 2009 pm30 9:24 pm 9:24 pm

    For 39, if I drew the graph correctly and gave them the two solutions like this (x,y) would I get full credit?

    • its my time to shine permalink
      June 23, 2009 pm30 3:58 pm 3:58 pm

      It didnt ask for a solution though

  79. Rachel permalink
    June 22, 2009 pm30 9:57 pm 9:57 pm

    I don’t really get # 19 are you sure about it?

    • Rachel permalink
      June 22, 2009 pm30 10:07 pm 10:07 pm

      wrong question, sorry

  80. flobabey permalink
    June 23, 2009 pm30 6:49 pm 6:49 pm

    where do you get the test itself?

  81. Anonymous permalink
    June 23, 2009 pm30 11:45 pm 11:45 pm

    90

  82. Hasnain permalink
    June 24, 2009 pm30 11:02 pm 11:02 pm

    thanks for these answers

  83. anonymous permalink
    June 25, 2009 am30 8:35 am 8:35 am

    what if you forgot to draw the best fit line, how many points would they deduct from your score?

    • June 26, 2009 am30 10:50 am 10:50 am

      The points were bascially:
      1 point for plotting the data correctly
      1 point for the line of best fit
      1 point for the equation of the line

  84. Anonymous permalink
    June 25, 2009 pm30 5:14 pm 5:14 pm

    This whole Regents was stupid even though I know I did good on it. The interest rate question was really dumb, though.

  85. jadii permalink
    June 29, 2009 pm30 11:04 pm 11:04 pm

    i still dont understand how to do #34 please show me step by step -_- i took the regents and this was one that i got wrong!
    Please help

  86. mathlover permalink
    July 8, 2009 pm31 1:27 pm 1:27 pm

    i got a 99 on the regent and i’m still trying to figure out what i got wrong. did i really get a point by #36 because i didn’t label both axes with a zero?

  87. marie permalink
    August 12, 2009 pm31 11:24 pm 11:24 pm

    u make no sence on most of the problem. u need 2 explain it better

  88. Anonymous permalink
    January 23, 2010 pm31 6:20 pm 6:20 pm

    dude, come onnn. not many of these are right. get some help.

  89. Anonymous permalink
    April 11, 2010 pm30 9:44 pm 9:44 pm

    Thank you for posting this

  90. Anonymous permalink
    June 3, 2010 pm30 6:32 pm 6:32 pm

    Hi I was wondering how did you get # 37 part a and b what would you type in on the calculator

  91. Someone permalink
    June 6, 2010 pm30 2:33 pm 2:33 pm

    For #38, would I get points taken off for not putting a title on the histogram? It says to label, and I labeled the Interval and Frequency but would any points be taken off for not including a title?

  92. Anonymous permalink
    June 13, 2011 am30 12:09 am 12:09 am

    For #31, where did you get the 4 from when you multiplied 5 x 4 x 3??
    LOL, sry for asking such a stupid question. i totally forgot how to do this. im really gonna faill D:

    • Anonymous permalink
      May 26, 2013 pm31 7:01 pm 7:01 pm

      because it says the letters can’t be repeated so every time you make an arrangement 1 letter is out

  93. Anonymous permalink
    May 27, 2013 pm31 7:00 pm 7:00 pm

    work for #15 i got 587.5 as the interest rate, 587.5

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