Recent content by AirbusA380

Hey guys, Im currently doing prelim 1/2 physics and doing pretty well overall (<90%). My question is, im really struggling condensing the info in the textbook down. Some of my notes for one section of the chapter can be up to 3 - 4 pages (2 sheets) long, and i struggle finding the most...

Hey guys, Im currently employed at Coles and have been working in the fresh produce department for around 6 months. Today i was notified that im going to be getting trained in service checkouts in a couple of days. :(. Any tips or tricks to the trade? How should i greet customers and what are...

It all depends how complicated you want to get in terms of construction and joinery techniques. It also depends on your knowledge of woodworking and the equipment your school has. Bunnings is only really good for plywood (and even then its not really furniture grade ply), they do sell pine that...

Well then what does it equal. If |f^-1(x)| is only going to contain a positive value and x = either (x+4)/3 or 1/3(x+4)? And how do i know which one is correct (x+4)/3 or 1/3(x+4)? Totally confused now. But i do remeber absoolute value and the y=|x|. Even if x is a ngeative value, in |x| it is...

Wait, I think i got it. Its the absolute function. (|x+4|)/3

So for b) (the inverse) i got (x+4)/3 which as far as im aware is the same as 1/3(x+4). I can remember seeing that |f^-1(x)| around in a topic but can remember its effect or what it means. If i graph both on my CAS there the same.

Sweet, thats all good now. Can you help me with the reply (qoute) above?

So to be a pain. Last question. In particular part c. for a i drew the original and for b) i did the same and got f^-1(x)=(x+4)/3

Thanks mate. The explanation helped so much! :)

So for a i got x^2 + 4x - 5 and b) i drew it. c) i got an inverse of sqroot (x+9) +2. (But this is for the entire function, not the two restricted original function. d) i got the same as above. e) (x+9)^0.5 -2 and f) ive alreayd worked out.

Ok, that makes sense. I managed to somehow (previsouly in holidays) to get the same restrictions. However, when i did the inverse i managed to get y= sqroot (x+9) +2. is this correct? I used the completing the square method. Or do you have to find the inverse for each restricted function?

I managed to find how to do it by switching x and y and i ended up getting y=(sqroot of x+9) +2, but instead i used the completing the square method. But even with yours, the next question says gives two restrictions to the domain that makes the inverse a function? For it to be a function you...

Hey guys, just need some help finding the inverse of a function for a holiday assignment. The function is x^2+4x-5 and the question asks to find the inverse of the graph (the equation). The inverse that i found im not sure is right. Thanks.

Hey guys, Im in year 11 doing chemistry, last year in year 10 i averaged in the 90's for chem but i understand that its different content. However this year im really struggling. I enjoy the subject but quite frankly my results dont show it. Im averaging a 54 overall, failed all my tests but...

Hey guys, can someone help me answer these questions on torque, centre of mass/gravity, etc.