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Ordinary level MATHS , Aftermath.

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2

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  • Registered Users Posts: 1,096 ✭✭✭Occono


    I feel just the same as I did after the Pre.

    Not good, that.


  • Closed Accounts Posts: 17 AR-15


    ooPabsoo wrote: »
    questin 2 B was hard...i got it out somehow though:D the other 2 points were something like (0,4)(0,-4) i just subbed in the (3,0) into the distance formula and seeing as X2 had to be 0,was left with the problem of finding Y2,seeing as 3 squared is 9.....it had to be 4 or -4 as the length was 5...the square root had to add up to 25 and whoooop it did

    I was wondering whether i got that question right or not but that's exactly what i got. We can't both be wrong, can we?


  • Closed Accounts Posts: 73 ✭✭Saffy


    It was a good enough paper but there were some very tricky parts.
    I ran out of time and only got part a done in my last question:rolleyes:
    But maths is my only OL subject so won't be counting it anyway.


  • Closed Accounts Posts: 6,362 ✭✭✭K4t


    creggy wrote: »
    What did everyone get for Simpson's Rule?
    5% for part (ii) anyway.


  • Registered Users Posts: 17,965 ✭✭✭✭Gavin "shels"


    Q2 was shocking, glad I done 6 questions in Section A. Others were doable, probability was great and I thought myself that.:cool: Hoping for a B2 maybe a B1.


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  • Registered Users Posts: 17,965 ✭✭✭✭Gavin "shels"


    K4t wrote: »
    5% for part (ii) anyway.

    Serious I got 1%.:eek:


  • Closed Accounts Posts: 73 ✭✭Saffy


    Serious I got 1%.:eek:

    I got 5 or 6%


  • Registered Users Posts: 354 ✭✭snazzy


    Maths P2 OL was challenging enough to be honest.
    Lot of C parts caught me out and I had to really really think so my timing was screwed up.

    Part C (ii) Area and Volume?
    Part B The Line!
    Part C (ii) The Circle?
    The bearing of the boat in Trig? WTF?!

    But pleased over all.

    And I got 5% too!


  • Registered Users Posts: 1,337 ✭✭✭moneyman


    AR-15 wrote: »
    I was wondering whether i got that question right or not but that's exactly what i got. We can't both be wrong, can we?



    I got it too, so it's unlikely that we're wrong. :D

    That said, I didn't know how to get it out the proper way, I worked it out in my head, and wrote it down. I'll probably lose marks for not showing out my work, but at least I'll have picked up a few marks for getting an answer rather than leaving it blank.

    Generally, I was delighted with the paper. It was tricky, but I did alot of study yesterday and I'd be confident I got an A in paper 2, or at least a high B. I actually didn't do as well on Paper 1, where I managed to completely forget how to do a few part Cs.

    Anyone get the last part of the Linear Programming question? Someone mentioned it, less than 7200 or something? Hadn't a clue how to do that. Also, how do you show the inequality y > 0 on a graph, or whatever it was?


  • Registered Users Posts: 175 ✭✭Lucet


    Serious I got 1%.:eek:

    Yeah, it's 5%. Simpson's rule I got 137m^2.


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  • Closed Accounts Posts: 90 ✭✭haloauto


    There were some tricky bits in it (bearing of the boat wtf?)..... hopefully will get a B though. I got the 2 Linear programming inequalities but didn't have enough time to go past the graph.... did vectors too though:cool:


  • Registered Users Posts: 17,965 ✭✭✭✭Gavin "shels"


    Lucet wrote: »
    Yeah, it's 5%. Simpson's rule I got 137m^2.

    I got the 137m^2, how the hell did I get the other part wrong.:confused:


    Did anyone get part ii on question 1.C.?


  • Registered Users Posts: 175 ✭✭Lucet


    I got the 137m^2, how the hell did I get the other part wrong.:confused:


    Did anyone get part ii on question 1.C.?

    1C(ii) I got 5cm. I'm pretty sure I'm wrong :D.


  • Registered Users Posts: 1,337 ✭✭✭moneyman


    snazzy wrote: »
    Maths P2 OL was challenging enough to be honest.
    Lot of C parts caught me out and I had to really really think so my timing was screwed up.

    Part C (ii) Area and Volume?
    Part B The Line!
    Part C (ii) The Circle?
    The bearing of the boat in Trig? WTF?!

    But pleased over all.

    And I got 5% too!

    All you had to do was put in 2.25 for the height in the cylinder volume equation. I couldn't do that part at first, but went back to it when I had all my other questions done. Luckily, it came back to me and when I put it in it worked out perfect. Those questions are always phrased to sound far more challenging than they are.


    Question 5 was definitely my weak point. I picked up hardly any marks on that question so I decided to do a sixth question in section one, which was question 7. Think I did alo better on that one.


  • Closed Accounts Posts: 90 ✭✭haloauto


    I got the 137m^2, how the hell did I get the other part wrong.:confused:


    Did anyone get part ii on question 1.C.?

    137 = 100%
    1.37= 1%
    7/1.37 = ;)


  • Registered Users Posts: 7,231 ✭✭✭Fad


    I though vectors was pretty tough this year.


  • Closed Accounts Posts: 660 ✭✭✭Claypigeon


    haloauto wrote: »
    There were some tricky bits in it (bearing of the boat wtf?)..... hopefully will get a B though. I got the 2 Linear programming inequalities but didn't have enough time to go past the graph.... did vectors too though:cool:

    Bearing of the boat was simple, never seen a compass before? o.o


  • Closed Accounts Posts: 90 ✭✭haloauto


    Claypigeon wrote: »
    Bearing of the boat was simple, never seen a compass before? o.o
    I said 90degrees west or something lol. :p


  • Closed Accounts Posts: 660 ✭✭✭Claypigeon


    haloauto wrote: »
    I said 90degrees west or something lol. :p

    lol


  • Registered Users Posts: 73 ✭✭don101


    mink_man wrote: »
    whats the answer to the last part on q 11? its show the region where the profit is at most 7200?

    i divided by the profit for each 800 and 900 i think! got (0,8) and (9,0) or the reverse, then just plot and draw arrows!!!

    i think...


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  • Registered Users Posts: 1,337 ✭✭✭moneyman


    Claypigeon wrote: »
    Bearing of the boat was simple, never seen a compass before? o.o



    That reminds me; I actually managed to leave my compass at home. Today. The one day I actually needed it. I know you're not supposed to, but I wrote the examiner a little note. Told him it got broke in my bag. :o


  • Closed Accounts Posts: 64 ✭✭FeistyOneYouAre


    pure free hand circle. ha

    did anyone just get one line for q11 part b?!
    usually its two lines but i only got 1.


  • Registered Users Posts: 10 annatar91


    jesus that paper 2 was so easy !!!


  • Registered Users Posts: 18,159 ✭✭✭✭phasers


    That boat thing was ridiculous, I felt like writing "Sorry I couldn't answer this, I get seasick!"

    Vectors and probability were amazing, Trig would have been fine except for that stupid bearings thing...

    Overall I think it went alright.


  • Registered Users Posts: 342 ✭✭phic


    Claypigeon wrote: »
    Bearing of the boat was simple, never seen a compass before? o.o

    Not really actually, what on earth would I be using a compass for?
    wanna explain what bearing means?


  • Closed Accounts Posts: 8 karloneill23


    my supervisor is a maths teacher and i wrote all of my answers on my exam book and after he went trough it with me and said i got full marks on all q's!!!

    delighted

    i was bricking it going in but when i saw the paper i just calmed down straight away!


  • Registered Users Posts: 73 ✭✭don101


    phic wrote: »
    Not really actually, what on earth would I be using a compass for?
    wanna explain what bearing means?

    think its the angle we see in relation to nsew.
    for the answer in that i wrote N71.2degW or sumtn close!!
    didnt know but then looked back up in the question part before that and saw that the lighthouse made a bearing NxxxxW or sumtn lyk that..
    feck.. just thinkn bout it now i think i did it wrong when i picture it in my head on the paper..... think its along those lines tho!!!


  • Registered Users Posts: 18,159 ✭✭✭✭phasers


    he went through it with you?

    Well that cant be allowed.


  • Registered Users Posts: 73 ✭✭don101


    phasers wrote: »
    he went through it with you?

    Well that cant be allowed.

    yes it can.
    exam was finished so its pretty irrelevant like?


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  • Registered Users Posts: 18,159 ✭✭✭✭phasers


    don101 wrote: »
    yes it can.
    exam was finished so its pretty irrelevant like?
    I thought you had to seal them immediately to avoid tampering?


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