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  1. F

    how to slove this question

    gee sorry i was just giving another way to do it which uses logic instead of just subbing into formulas n u do 3 unit so u should appreciate my methods
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    projectile motion

    yeh i do the same. it is so much easier to understand and u dont have to remember how to use those 6 formulas....
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    how to slove this question

    y acceleration = -1.6 y speed = -1.6t + V, V = inital velocity y displacement = -1.6/2 t^2 + Vt max heigh occurs when y speed = 0 t = v/1.6 sub back in to displacement 20 = -1.6/2 * V^2/(1.6)^2 + V^2/16 then solve for V V = root(40 * 1.6) i doubt they will ask this, it is too...
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    my solutions, all questions

    the graph is of velocity so the distance is the area under the graph. when you draw the graph in iii) a bit of the graph is under the x axis so i integrated in 2 parts and added them together.
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    3D Trig

    can anyone tell me how they got this. i had no idea
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    projectile question???

    i looked at and i think hmmmmmmmmmmmmmmmm fuk that im not gonna even waste my time.
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    what raw mark do u tink u will get?

    i know i havent got 15 marks minus silly mistakes 60 - 65 / 84 75%
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    Question 3 c

    for the first part i wrote out all the possible dice rolls and i got probability of getting sum 5/36??? 1+4 2+3 3+2 4+1 wat the hell i dunno wat the hell i did but i counted 5 argh
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    my solutions, all questions

    cartesian plane is just a graph
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    polynomial and remainders

    thanx i *almost* understand it. how do u know it has a degree 2?
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    my solutions, all questions

    wat do u mean? i used radians in calculating the angles. but technically you should get pi when using degrees aswell???
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    solutions

    i got 5.6 and shaded that same region :) n im pretty sure we are right
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    polynomial and remainders

    anyone help me with this: when the polynomial P(x) is divided by (x+1)(x-4), the quotient is Q(x) and the remainder is R(x). i) Why is the most general form of R(x) given be R(x) = ax + b ii) Given that P(4) = - 5, show that R(4) = -5 iii) Further, when P(x) is divided by (x+1), the...
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    my solutions, all questions

    4 b) ii) for the probability i did a table of possible outcomes 1 1 1 3 * 1 5 1 7 2 1 2 3 * 2 5 2 7 3 1 * 3 3 * 3 5 * 3 7 * 6 * 1/3 * 1/ 4 = 1/2 wat did u get?
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    my solutions, all questions

    ummm seems html doesnt work. <sup> means to the power of </sup>
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    my solutions, all questions

    here ya go guys: Question 1 (a) 0.0302 (b) 3+sec^2 x (c) 95 degrees (d) $280 (e) x^3-8x+5 (f) x=10, -4 __________________ Question 2 (a) ex + 2y - 4 + e^2 = 0 (b) i) root(2) ii) -1 iii) 135 iv) y = -x + 10, C(10, 0) v) is a proof vi) 35 __________________ Question 3...
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