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Because you weren't a good enough mathematician??

i dont understand how the position of the school your going to has anything to do with your UAI??

the probability of it raining 0 days is, as u proved, 27/64 and the probability of it raining only one day is 3 x (3/4 x3/4 x 1/4) as it can rain on either the first, 2nd or 3rd day. this equals27/64 and the probability of it raining NO MORe than one day is the probability of it raining no...

you do realise integration is calculus???

theres actually two lines that satisfy the equation 3x+4y-15=0 and 3y+4y+25=0 because when u have sqr(25) both 5 and negative five satisfy it so you have to account for two cases

so you need dx/dt and were given dA/dt (acceleration) = 9.8 so we need and other vaiable to get rid off of the dA and bring in dx dx/dt=(dA/dt).(dx/dA) and as A = 5x - e^2x + 3 we can find dA/dx, so we can just invert dA/dw to get dx/dA then sub in x=-.3

your meant to let the roots be a, b , a+b and use the relationships between the roots and coefficients in this kind of question but factor theorem is much quickerer

oo thats kinda cool thanks

how would you simplify something like atan(2) - atan(0.5)??? do the same laws as logs apply?? thanks

nice work but u realise you didnt need the last 5 lines after u realised the ratio of height:rad = 5:1 and u found the radius you couldve just multiplied it by 5

a) PQ = 2cm triangleAPQ is equilateral b)actually i think rather , construct CE such that angle CEQ = 90* (deg) and i thinkkk that because Tri APQ is equilateral CE will bisect PQ and you can prove congruency in tri CEP and CEQ c)then use cos rule to find CQ remember QB=58, BC=60 then...

your calculators in radians and the 45 is degrees change ure calc to degrees of instead of 45 use pi/4

i reckon you can buy like a roll of bubble wrap at the post office to last a life time which ius a good thing cause you can never get bored with it

its another name for dispersion forces i think

have a toss defo the best way to relieve stress unless ure at school then thats just gross

let the roots be a-n, a , a+n alot less messy because when you do the sum of the roots you'll just get @=-b/3a so you have one root straight away the just do the product of the roots, sub in what ever @ is and find n

thats only cause havn't learnt it yet see how quickly u picked up differentiation ull be fine with it

nah its not too hard really basic integration is just goin the other way, really it can get a bit complicated in 4 unit tho,

finding the gradient of the tangent

find RQ and find the perp distance from s to the line x-axis (rq) equation is y=0 then use A=0.5bh