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IGCSE MATHS Doubts

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Ghost Of Highbury:
5) 3x -2 = 8*5

    3x -2 = 40

    3x = 42

     x= 14

6) a)120 - 72 = 48/0.5 = 96km/h

    b) 0 km/h as only time is increasing not distance.

@hesham - post the link plz

Adzel:
Thanks....and I'll be waiting for the rest please.

-Cornea:
i) square both sides it will be:
32=2^2n
2^5=2^2n
power are equal then
5=2n
n=5/2

ii)cube root of (1/8)=1/2
1/2=2^q
2^-1=2^q
consequently..q=-1

-Cornea:
adzel
draw the paralleogram and consequently u will get the third side
A=(1,1) B=(4,6) C=(8,6) then u will get that D=(5,1)
use the rule =
square root of any 2 points let's take (4,6) and (1,1)
square root of (4-1)^2+(6-1)^2
square root of (3)^2+(5)^2
square root of 9+25
square root of 34
Answer=5.83
(Tht's the third question)

-Cornea:
i mean point d not the third side:D Parallelogram*

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