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Thanks for all the excellent help guys. A couple of those seems really easy now (distance formula, how the heck did I not think of that?, lol). I'm still not really sure on No.3 though.

Can anyone tell me how i woudl solve the following, which have got me stumped. Any help is needed as the exam is soon. Thankyou.

So I want a serious, stable career, and plan to study at uni. Is it really worth deferring for a year to do this (in 2009)? Would anyone reccomend navy/airforce or army? Anyone know how much of you pay goes to food/living expenses, etc? How do you chose to be a cook, etc?

"An unfortunate driver of mass 50 Kg was travelling on an icy road in her 1200 Kg car, collides with a stationary police car of total mass (including occupants) of 1500 Kg. The tangled wreck moves off after the collision with a speed of 7.0 m s^-1. The firctional force on both cars can be...

So we've done all these before, its just some I've forgotton how to do some, etc and woudl just like to see how to do one so that I can then practice with some similar ones. I'm not looking for answers, I'm looking for solutions on how to do these (with an answer at the end, etc). I might add...

Thanks for tee help. I follwoed most of that, althoghu don't quite get what formula/means you used to get 3x + 4y + 10 = 0 into the form y = (1/4)*(10 - 3x), such as why is 3x last in the equation, etc?

Ok, so heres another locus question I'm having issues with. "Show that the circles X^2 + Y^2 = 4and X^2 + 2x + y^2 - 4y - 4 = 0 both have 3x + 4y + 10 = 0 as a tangent." So with X^2 + 2x + y^2 - 4y - 4 = 0, centre = (-1, 2), r = 2 and with X^2 + Y^2 = 4, centre = (0, 0), r = 2 right...

I don't really have all of the background knowledge/skills learnt in 3U, so I', obviously going to try to catch up, althoghu do you think its unrealistic for me to attempt 4U? I'm certianly willing to put in the work.

Can anyone please give me a rundown of how to do to the following question: "Find the equation in exact form of the locus of a point that moves so that its distance from the line x - 2y - 3 = 0 is always 5 units." The line x - 2y - 3 = 0 being in there has just confused me.

Inequalities.

Anyone?

Pmed thanks.

Did anyone find any notes for this?

So I undersatnd the exam is based on texts read through the year? Can anyone tell me what texts I shoudl have read for prelimiary English Advanced?

So I have an exponential model, X agaist logT, etc and have some data values for each of those. I enter these into the calculator in List 1, and List 2 respectively, and then in L3, log list 1, and in L4, log list 2, and graph list 4 against list 1 (log X against t, etc). That works fine, and...

is it sad that i can't get the joke of the Op? Or that I can't solve it, lol?

Logarithims.

We'd you get 5800 from in the last question? With No. 2, how does that prove its geotmetric?

Got a maths test Wednesday and hust have some questions. ------------------------------------------- As a power of 2 does 1 --- 256 equal 1 --- 2^-8 -------------------------------------------- Tn = 24 x (-1/2)^n-1 With this geometric sequence, I have absolutely no idea how to...

Thats what I want to calculate :)