Ibo ALGEBRA

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    1. Solve

    (a) 042232 =+ xx

    x=............. or ..............(4)

    (b)x2 10x=0

    x=............. or ..............(4)

    (c) 0352 2 = xx

    x=............. or ..............(5)

    2. Solve the equation 5x 2 2x 4 = 0

    Give your answers correct to 3 significant figures.

    x=....................... or ................ (6)

    3.(a)Solve the inequalityx2! " # 11

    a

    acbb

    x 2

    42

    =

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    ...............................(2)

    (a)Solve the inequality 2x25x 3 # 0

    ...............................(2)

    4. $he %iagra& shows a sha'e.ABis an arc of a circle( centre O.

    )ngleAOB= *0+.

    Given that the area of the sha'e is ,0 c&2calculate its ra%ius.

    Give your answers correct to 3 significant figures.

    r= ............................. c&(Total 4 marks)

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    5. /alculate the area an% the 'eri&eter of the following sha'es.

    a

    A= ............................ c&2

    P= ............................. c&(5)

    A= ............................ c&2

    P= ............................. c&( 5)

    (Total 10 marks)

    ,. in% the 'eri&eter an% area of the sha%e% area.

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    10 cm

    6 cm

    4cm

    4cm

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    P= ............................. c&

    A= ............................ c&2

    (Total 6 marks)

    ". $he %iagra& shows a soli% cone.

    $he ra%ius of its ase is 3." c& an% the slant height is .3 c&.

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    a /alculate the total surface area of the cone.

    Give your answer correct to 3 significant figures.

    .................................. c&2

    (3)

    /alculate the volu&e of the cone.Give your answer correct to 3 significant figures.

    .................................. c&3

    (3)

    (Total 6 marks)

    2. $he %iagra& shows a 'ris&.

    $he cross section of the 'ris& is a rigth angle% triangle.$he lengths of the si%es of the triangle are 3 c&( 4 c& an% 5 c&.

    $he length of the 'ris& is " c&.

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    a or out the volu&e of the 'ris&.

    .................................. c&3

    (3)

    or out the total surface area of the 'ris&.

    .................................. c&2

    (3)

    (Total 6 marks)

    -13*,) Turn over,

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    1". ) cylin%irical tan has a ra%ius of 30 c& an% a height of 45 c&. $he tan contains water to a %e'th of 3, c&.

    ) &etal s'here is %ro''e% into the water an% is co&'letely covere%. $he water level rises y 5 c&.

    /alculate the ra%ius of the s'here.

    ....................................c&

    (Total 6 marks)

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    5. or out the area of this sha'e.

    c&6(Total 4 marks)

    . $he cuoi% shown in the %iagra& hasEF = 4 c&(FG = , c& an%AE = 3 c&.

    a/alculate

    ithe volu&e of the cuoi%(

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    c&

    5 c&

    4 c&

    7iagra& NOTaccurately %rawn

    c&

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    c&3(2)

    iithe surface area of the cuoi%.

    c&2(3)

    $he cuoi% is %ivi%e% into two equal triangular 'ris&s. 8ne of the& is shown in

    the %iagra&.

    rite %own the volu&e of the triangular 'ris&.

    c&3(1)

    9. $he %iagra&s show so&e soli% sha'es an% their nets. )n arrow has een %rawn fro& one soli% sha'e to its net.

    7raw an arrow fro& each of the other soli% sha'es to its net.

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    (Total 4 marks)

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    12. (a) /o&'lete the tale of values fory=x2 ,x! 10

    x 0 1 2 3 4 5 ,

    y 10

    (3)

    (b) 8n the gri% %raw the gra'h ofy=x2 ,x! 10

    (3)

    (c)9se your gra'h to solve the equation x2 ,x! 5 = 0

    ..............................(3)

    (d)rite %own the coor%inates of the &ini&u& 'oint.

    ..............................(2)

    (e)rite %own the equation of the line of sy&&etry.

    ..............................(2)

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    y

    x

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    7iagra& NOT

    accurately %rawnx 5

    x! ,

    $he %iagra& shows a tra'e:iu&.$he lengths of three of the si%es of the tra'e:iu& arex 5(x! 2 an%x! ,.

    )ll &easure&ents are given in centi&etres.

    $he area of the tra'e:iu& is 3, c&2.

    a Show thatx2x 5, = 0

    (4)

    i Solve the equationx2x 5, = 0

    ii ;ence fin% the length of the shortest si%e of the tra'e:iu&.

    c&(4)

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    9Art 2ndFinal 2009-10

    16.

    $he two cylin%ers are &athe&atically si&ilar.

    a oth cylin%ers are &a%e of the sa&e &aterial. $he ig one weighs 120g. ;ow &uch %oesthe s&all one weights

    (3)

    2

    30 cmBA 20 cm

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    9Art 2ndFinal 2009-10

    3