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we had a whole bunch of year 10 girls crying at school on wednesday because they thought the world was ending haha, jerks

ok im not gunna do it coz im about to go out but ill push you in the right direction find the equation of the focal chord, noting the focus is (0,-3/2) y finding the gradient (m=y2-y1/x2-x1) and using the point gradient formula (y-y1=m(x-x1) ) then when you have it as an expression such as y=12x...

yes i believe they should make mathematics a prerequisite for hsc physics and have it a calculus based course that would be awesome

yes some of it is ridiculous

umm i think i mightve what were some of the questions??

i think you should be averaging atleast 70% to do 4 unit maths but give it a go to begin with you can always drop if its too hard

i rate your conclusion

angle DBA = 30 (139 - 109) the find expressions for AB and DB and thern use the cos rule to find AD

i) ln(1/x)/ln5 = 0.5 ln(1/x) = ln(rt5) 1/x= rt5 x= 1/rt5 ii) change the base again ln64/ln2 =x+ 2 6ln(2)/ln2 =2 +x x=4

wow your just a family of mathletes then

you serious?? do you teach him what you learn or something ? lol

can you just admit you can't do the questions?? no ones gunna think less of you

why dont you stop calling easy questions extreme maths challenges just use the same theory as from your other thread

yeah sorry was just a typo

have you escaped one before??

right idea, just got the formula wrong but because of the nature of the question you still got the correct answer shoulde be |4x-3y+2|/5=|3x+4y-7|/5 ( 5=sqr(3^2+4^2)) so 4x-3y+2=3x+4y-7 or 4x-3y+2 = -3x-4y+7 x-7y+9=0 or 7x+y-5=0 and im not sure why you call this a maths challenge?? sure oyu...

i swear this is like the 4th time youve asked this question??

anyone else wanna have a stab??? thanks

if you ever stay in a hotel make sure you take advantage of the alcohol vending machines when i went with school the teachers and the year 9 kids were all on the level below us and all of year 10 had a level to ourselves fun nights

bisection means its cut into 2 equal parts its disection that your thinking and ill just give you a hint for 5 , speed is greatest when accel is 0