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Maths paper 1...wat ye think??

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24

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    #32
    tasha1
    Closed Accounts Posts: 233 ✭✭tasha1


    Big Ears wrote: »
    tan 135 degress = -1 , therefore the tangent was = -1 .

    So answer from the bit before = -1 and work from there .

    I don't think you could use Pythagoras's theorem Fitzo it was an isosceles triangle .

    Would It Have Been Necessary To Do Trig To Answer That?


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    #33
    NervyChick
    Closed Accounts Posts: 72 ✭✭NervyChick


    It was grand but now that i think back i think i left a bit early... Half eleven????? :confused:


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    #34
    Fitzo
    Registered Users Posts: 396 ✭✭Fitzo


    bitterstudent wrote: »
    It been an isosceles triangle and having the base you can split it into 2, making a right angled triangle and then getting the unknown side - the perpendicular height.

    Bingo.

    leaving you with a^2 + x^2 = x^2 +1


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    #35
    tasha1
    Closed Accounts Posts: 233 ✭✭tasha1


    Hehe I Brought Mine Out.

    Equally Screwed For Both Of Them..

    Haven't Even Started Bio..

    Yeah He Txt Me Awhile Ago, Said It Was Diff To Other Years!!

    *****..

    Go To The History Thread!!

    Pat Said Anymore? :]


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    #36
    Fitzo
    Registered Users Posts: 396 ✭✭Fitzo


    Did most people get 36% as the actual mark on 1 (c)(ii)?


    Think I got it right?


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    #37
    PrivateEye
    Closed Accounts Posts: 2,283 ✭✭✭PrivateEye


    Maths is the exam I plan on being able to toss aside anyway (Am I correct in saying its not recquired for Arts in Maynooth?) but I did no study for it in the slightest and went in with the aim of simply not failing.

    I'd need to do dire in Paper II now to fail, and I think PII is alright to be honest. Maths though is not a part of my overall plan for the LC.


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    #38
    Twee.
    Moderators, Recreation & Hobbies Moderators Posts: 9,722 Mod ✭✭✭✭Twee.


    I struggled a bit with OL but on my second go around the questions some parts just clicked, like that feckin triangle for example.
    For question 7 (the distance/speed/time part) did anyone get the same answer for part (i) and (iii) ?


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    #39
    Bambi16
    Registered Users Posts: 89 ✭✭Bambi16


    Pat has said no more I'll be up to him on Sunday

    Well he said know the respiration exp inside out and the heart/blood?

    The history thread, too many people giving diff views?
    Im gonna go with - Parnell, Congress, Cultural, Treaty and maybe Sinn Fein?
    Europe - Hitlers foreign policy, Church relations, Muss rise to power and Show trials!

    First history exmas in 6 yrs and we dont what coming up


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    #40
    PeteZahut
    Closed Accounts Posts: 38 ✭PeteZahut


    Q1 (a)138.75 (b)(i)68km/hr (ii)48mins (iii)13mins (c)(i)E123.66 (ii)36% Q2(a)7 (b)(i)2+- sq 3 (ii)4 (c)(i)(x+2)(x+2) (ii)2x-1 (iii) 1>or equalsx>or equals to 0 Q3(a)x=5-8(div)a (b)(i)(5,4)(5,6) (c)(i)b=2 c=3 (ii)x+1(defo wrong) Q4(a)(i)u=3-4i (ii)u+5i=3+i (b)(i)-21+20i (ii)29=29 (c)(i)k=2 (ii)didnt get it Q5(a)95 (b)(i)one ninth (ii)3e (iii)t8 (c)9i)d=-2 (ii)Tn=-13+(n-1)-2 (iii)dont know what is it


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    #41
    PeteZahut
    Closed Accounts Posts: 38 ✭PeteZahut


    Q7(a)(i07x^6...(ii)5-12x^3....(b)(i)-9x^2-2x+12=0....(ii)-16.....(c)(i)405m....(ii)20m/s.....(iii)425m


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    #42
    Bambi16
    Registered Users Posts: 89 ✭✭Bambi16


    1cii how do you get the 36% I got half of it and got stuck


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    #43
    PeteZahut
    Closed Accounts Posts: 38 ✭PeteZahut


    12 is the nearest multiple of 10 to 123.66...minus d 1 cent dat is 119.99...dat is 121% divid%e by 121 and multiply by 100...dat gives you 99.165......take dat from d 73 and dat is ur mark up...dat leaves 26.125 put dat over 73 and multiply by 100 and you get 35.84%...rounded off dat is 36


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    #44
    Stressed!
    Closed Accounts Posts: 45 ✭Stressed!


    LOVED it...............sooooooooooooo easy!!:pac::pac::p


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    #45
    aleyra
    Registered Users Posts: 56 ✭✭aleyra


    pretty happy with this exam ,couple of parts that went a bit wrong, but thats where the good old attempt marks come in handy!
    hope paper II is just as good!


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    #46
    jessie11
    Closed Accounts Posts: 111 ✭✭jessie11


    Fitzo wrote: »
    Did most people get 36% as the actual mark on 1 (c)(ii)?


    Think I got it right?

    i tink i got dat ...not sure coz i tried it a few ways


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    #47
    titan18
    Registered Users Posts: 12,005 ✭✭✭✭titan18


    In b iii,is the question asking how much longer does the journey take compared to the start.Or after the 28 km section,how much longer does the journey take.


    I got 36% also but a few of my friends said 35%


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    #48
    Fitzo
    Registered Users Posts: 396 ✭✭Fitzo


    titan18 wrote: »
    In b iii,is the question asking how much longer does the journey take compared to the start.Or after the 28 km section,how much longer does the journey take.


    I got 36% also but a few of my friends said 35%

    They probably rounded down instead of up.


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    #49
    jessie11
    Closed Accounts Posts: 111 ✭✭jessie11


    its how long did the 28km take dat day wen she reduced d speed


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    #50
    titan18
    Registered Users Posts: 12,005 ✭✭✭✭titan18


    jessie11 wrote: »
    its how long did the 28km take dat day wen she reduced d speed


    I'm on about the 3rd part,not the 2nd one.


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    #51
    jessie11
    Closed Accounts Posts: 111 ✭✭jessie11


    titan18 wrote: »
    I'm on about the 3rd part,not the 2nd one.
    sorry...i tink it ment the whole journey compared 2 start


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    #52
    irishbucsfan
    Registered Users Posts: 37,978 ✭✭✭✭irishbucsfan


    Does anyone remember how Q. 6 c) went? They wouldnt let me take the paper


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    #53
    titan18
    Registered Users Posts: 12,005 ✭✭✭✭titan18


    jessie11 wrote: »
    sorry...i tink it ment the whole journey compared 2 start


    Ah damn,stupid phrasing.I went the other way.If i miss out on a grade change cos of that,I'll be very annoyed and I'll be getting on to whoever sets this damn paper for not specifying it.

    Although,I dont plan to use Maths.


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    #54
    La0Fruitcake
    Registered Users Posts: 71 ✭✭La0Fruitcake


    im not reading any more of this forum!!!!! lol its depressing me!!! i mean seriously i completly made a big screwup of it......oh god...gonna need a lot of pratice to do well in paper two.....cant believe people tought it was easy.....now i feel more stupid!!!!:confused::pac:


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    #55
    jessie11
    Closed Accounts Posts: 111 ✭✭jessie11


    irishbucsfan wrote: »
    Does anyone remember how Q. 6 c) went? They wouldnt let me take the paper

    f(x)= xsquared - x
    1- xcubed

    (i)find f'(x) derivative of f(x)

    (ii)show that the tangent to the curve y=f(x) at the point (0,0) makes an angle of 135 degrees with the positive sense of the x axis

    :o


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    #56
    titan18
    Registered Users Posts: 12,005 ✭✭✭✭titan18


    La0Fruitcake wrote: »
    im not reading any more of this forum!!!!! lol its depressing me!!! i mean seriously i completly made a big screwup of it......oh god...gonna need a lot of pratice to do well in paper two.....cant believe people tought it was easy.....now i feel more stupid!!!!:confused::pac:

    why,waht did u do wrong


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    #57
    jessie11
    Closed Accounts Posts: 111 ✭✭jessie11


    titan18 wrote: »
    Ah damn,stupid phrasing.I went the other way.If i miss out on a grade change cos of that,I'll be very annoyed and I'll be getting on to whoever sets this damn paper for not specifying it.

    Although,I dont plan to use Maths.


    yea readin it now i tink i answered it wrong...i tink i just wrote den the new time and not how much longer it was compared 2 d other hmmmm


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    #58
    irishbucsfan
    Registered Users Posts: 37,978 ✭✭✭✭irishbucsfan


    jessie11 wrote: »
    f(x)= xsquared - x
    1- xcubed

    (i)find f'(x) derivative of f(x)

    (ii)show that the tangent to the curve y=f(x) at the point (0,0) makes an angle of 135 degrees with the positive sense of the x axis

    :o

    Thanks.... yeah got that one wrong...!


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    #59
    irishbucsfan
    Registered Users Posts: 37,978 ✭✭✭✭irishbucsfan


    jessie11 wrote: »
    yea readin it now i tink i answered it wrong...i tink i just wrote den the new time and not how much longer it was compared 2 d other hmmmm

    Yeah I think I did the same. Not sure. I remember thinking in the exam that it said how much "longer" but I can't remember if I wrote it down or not... :confused:


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    #60
    titan18
    Registered Users Posts: 12,005 ✭✭✭✭titan18


    jessie11 wrote: »
    yea readin it now i tink i answered it wrong...i tink i just wrote den the new time and not how much longer it was compared 2 d other hmmmm


    I've got a feeling that teachers may give out about it and everybody gets the marks for it as long as it was attempted


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    #61
    jessie11
    Closed Accounts Posts: 111 ✭✭jessie11


    irishbucsfan wrote: »
    Thanks.... yeah got that one wrong...!

    yea i tink i got part 2 wrong...im so glad i dropped down to ordinary i would have died doin the honours...i was lookin at it after n cudn understand any of it:eek:


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