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Maths paper 2 solutions

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  • 09-06-2008 3:08pm
    #1
    Rory710
    Registered Users Posts: 20 ✭


    Q.2 (A) 22units squared

    (B) (i) -2

    (ii) -4=-4

    (iii)(0,4)

    (iii) draw diagram

    (C)(i) Midpoints are equal (1.5,3.5) on both

    (ii) 7x-y=0


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    #2
    Rory710
    Registered Users Posts: 20 ✭Rory710


    Q.3

    (A)(i) Draw diagram
    (ii) (0,4) (4,0) (0,-4) (-4,0)

    (B)(i) X squared + Y squared= 5
    (ii) (x+4) squared + (y-2) squared=5
    (iii) 2x-y+5=0

    (C) (i) (9,0) (-3,0)
    (ii) 12<12.649
    (iii) (x-9) squared + (y+3) squared= 36


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    #3
    Rory710
    Registered Users Posts: 20 ✭Rory710


    Q.6

    (A) 840

    (B)(i) 17/70
    (ii) 37/70
    (iii) 40/70
    (iv) 54/70

    (C) not sure about this one

    (i) 330
    (ii) 30
    (iii) 25
    (iv) 22


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    #4
    teckoda
    Closed Accounts Posts: 146 ✭✭teckoda


    I can't remember what i got for half of them =/ But the first few answers look familiar :D


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    #5
    Rory710
    Registered Users Posts: 20 ✭Rory710


    Q.7

    (A)(i) draw histogram
    (ii) 45 and a half years old
    (iii) 120

    (B) (i) 75
    (ii) 35
    (iii) 140
    (iv) 45%


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    #6
    King Ludvig
    Closed Accounts Posts: 640 ✭✭✭King Ludvig


    Hopefully that isnt todays maths paper II because I dont recognise any of those answers!!

    Is that HL or OL?


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    #7
    Plambey
    Registered Users Posts: 67 ✭✭Plambey


    King Ludvig wrote: »
    Hopefully that isnt todays maths paper II because I dont recognise any of those answers!!

    Is that HL or OL?
    that'd be ordinary my friend


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    #8
    Kazbah
    Registered Users Posts: 764 ✭✭✭Kazbah


    Rory710 wrote: »
    Q.3
    (C)
    (iii) (x-9) squared + (y+3) squared= 36

    (x-3)^2 + y^2 = 36

    Centre is (3, 0) the midpoint of ¦ab¦ (-3, 0) (9, 0)


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    #9
    Fuascailt
    Closed Accounts Posts: 268 ✭✭Fuascailt


    Thank God this is pass, was getting worried there


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    #10
    armbruster
    Registered Users Posts: 109 ✭✭armbruster


    (C)(i) Midpoints are equal (1.5,3.5) on both


    midpoints are 0.5 and 3.5


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    #11
    Kazbah
    Registered Users Posts: 764 ✭✭✭Kazbah


    Rory710 wrote: »
    Q.6


    (iii) 40/70
    Simplify to 4/7 for full marks

    Rory710 wrote: »
    (C) not sure about this one

    (ii) 30
    (iii) 25
    (iv) 22

    c ii 10c3 = 120
    c iii 6c2 * 5c2 = 15 * 10 = 150
    c iv 6c4 = 15
    15/330 1/22


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    #12
    louis626
    Registered Users Posts: 84 ✭✭louis626


    :cool: cool a lot of these answers look familiar!! think i did well in this one...wooo!!!:)


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    #13
    SRFC90
    Registered Users Posts: 1,628 ✭✭✭SRFC90


    you positive these are correct or are u just posting your answers?


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    #14
    Sugarplum_fairy
    Closed Accounts Posts: 35 ✭Sugarplum_fairy


    Fuascailt wrote: »
    Thank God this is pass, was getting worried there
    thats a bad sign indeed!!! anyone feel like putting the p2 higher level solutions up?


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    #15
    Kazbah
    Registered Users Posts: 764 ✭✭✭Kazbah


    Rory710 wrote: »
    Q.7

    (A) (ii) 45 and a half years old

    it's exactly 45 (18000/400)
    Rory710 wrote: »
    (ii) 35
    (iii) 140
    bii 28
    biii 21


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    #16
    Kazbah
    Registered Users Posts: 764 ✭✭✭Kazbah


    ai 41.12
    aii 100.48
    bi 678m^2
    bii €32,544
    ci 66cm^3
    cii 52 candles


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    #17
    Kazbah
    Registered Users Posts: 764 ✭✭✭Kazbah


    a 44cm
    bi 10.6cm
    bii 4cm
    ci 8.5cm
    cii 75 degrees


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    #18
    Kazbah
    Registered Users Posts: 764 ✭✭✭Kazbah


    ai false -10 not greater than 0
    aii x+2y+4<=0

    b
    2x+37 <= 120 (0, 40) (60, 0)
    x+y<=50 (0, 50) (50, 0)
    draw diagram

    poin of intersection (30, 20)

    bii 30 fish & 20 meat
    biii 50 fish


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    #19
    tdc
    Closed Accounts Posts: 888 ✭✭✭tdc


    im terrible at maths, just hoping i passed today. i managed to write down these answers just to check, im sure a few of them are wrong but id appreciate if someone could let me know how i done?

    Q1.
    (b) (i) 678m2 (ii)32544 euro

    (c) (i) 66cm3 (ii)52

    Q6.
    (a) 840

    (b) (i)17/70 (ii)37/70 (iii)40/70 (iv)54/70

    (c) (i)330 (ii)30 (iii)7

    Q7.

    (a) (i)Diagram (b)45 (c)120

    (b) (i)77 (ii)60-95* (iii)140 (iv)45%

    *on the interquartile range question do you have to add both and divide the answer by 2 or can you just leave it as 60-95?


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    #20
    Petie_Pie
    Closed Accounts Posts: 27 ✭Petie_Pie


    Crap... i reli taught i was gonna be gettin an a but the way things are now lookin low b:(


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    #21
    tdc
    Closed Accounts Posts: 888 ✭✭✭tdc


    Petie_Pie wrote: »
    Crap... i reli taught i was gonna be gettin an a but the way things are now lookin low b:(

    wish i had your problem, just hope i passed! :pac: do you need a result for college,etc?


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    #22
    Petie_Pie
    Closed Accounts Posts: 27 ✭Petie_Pie


    Need a high B or A in it..
    GOnna have to make up for it in Business and Accountin now:(


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    #23
    SmashingPilot
    Registered Users Posts: 540 ✭✭✭SmashingPilot


    tdc wrote: »
    wish i had your problem, just hope i passed! :pac: do you need a result for college,etc?

    I know the feeling. Somehow, today's success has given me false hope as to whether I passed overall or not.

    I'm now officially dreading the day our results come out.


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    #24
    Kazbah
    Registered Users Posts: 764 ✭✭✭Kazbah


    tdc wrote: »
    im terrible at maths, just hoping i passed today. i managed to write down these answers just to check, im sure a few of them are wrong but id appreciate if someone could let me know how i done?

    The answers are in the previous posts
    There are usually 10 marks for part A, 20 for b and 20 for C


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    #25
    Plambey
    Registered Users Posts: 67 ✭✭Plambey


    yep tis defo jus 45%, dont remember seein a .5% in my answer!


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    #26
    Petie_Pie
    Closed Accounts Posts: 27 ✭Petie_Pie


    barcoe4 wrote: »
    b(i) asks paperback poetry, there are 33 paperback so its actually 17/33
    b(ii)correct
    (iii)correct
    (iv)correct

    No the question seys peotry hardback so it would have been 17/70


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    #27
    tdc
    Closed Accounts Posts: 888 ✭✭✭tdc


    Kazbah wrote: »
    it's exactly 45 (18000/400)
    thank god! i got 45 and saw the OP got 45.5 and i just said "ah bollix" :pac: i feel better now
    Kazbah wrote: »
    bii 28
    biii 21

    is this Q7. (b)(ii) and (b)(iii) ?

    this is what i got:

    Q7.

    (a) (i)Diagram (b)45 (c)120

    (b) (i)77 (ii)60-95* (iii)140 (iv)45%

    *on the interquartile range question do you have to add both and divide the answer by 2 or can you just leave it as 60-95?


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    #28
    BaRcOe
    Registered Users Posts: 1,164 ✭✭✭BaRcOe


    HAHAHAHA OMG PADDY

    READ THIS

    Its about your siggy(as nice as it is and all!!), its way tooo BIG, * ITS meant to be 300 pixels wide, 125 pixels tall and 20k in size. No animated images are allowed.

    :D


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