Search results

Can't you just split it in half and use right angle trig to find x/2, then times that by 2 to get answer?

Yeah I definitely agree. 87? Wow. That's good! Do marks matter at the end of the day or are ranks more important?

Anybody? :)

Just wondering if I can get an ATAR estimate from half yearly ranks. School rank: 500+ Standard English: 17/76 2U Maths: 6/21 Economics: 5/7 Business Studies: 6/24 SDD: 2/3 Thanks :)

Did average, only got SDD and Economics back so far :/ SDD - 69% Eco - 67% The rest are estimates: Maths - 65%+ Business - 80%+ (probably not, but hopefully) English - no idea

You scared the fuck out of me.

+\sqrt{121}

Thanks heaps :)

Can somebody tell me how I can simplify { sin }^{ 2 }\theta -sin^{ 2 }\theta \times cos^{ 2 }\theta ? Thanks.

Nevermind, I actually figure out that you need to do x^2=8(y-2) since it's y intercept is 2.

A parabola has a focus at (0, 4) and its vertex is at (0, 2). Find the equation of the parabola. I graphed the focus and vertex, and since the vertex is the midpoint between the focus and directrix we can say the directrix is at y=0. So we can say the focal length is 2, a=2. Then we can sub...

Thanks so much, that is awesome :) I really appreciate it.

I was wondering if anyone could quiz me on the operations and marketing topics in preparation for my exam tomorrow? Thanks.

They're pretty good marks! I wouldn't say you're unintelligent. Good work :)

Initial introduction to 2U concepts can be confronting, but with continued practice you can become better. :)

My bad, no amplitude on tan. :) I still don't understand that :(

Alright, well I somehow got the answer. I have another question though, y=tan3x for 0 <= x <= 2pi. So, the amplitude is 1, and period is pi/3. Now in the answers, they have an asymptote pi/6, but how am I supposed to know that?

Sorry, I typed the question wrong, it's actually for 0 \le x \le \pi

Hello, I'm just wondering if I can get some assistance sketching some trigonometric graphs. I've been able to do the earlier ones, but when the question changes the period I have trouble. e.g: y = 2cos4x \quad for \quad 0 \le x \le 2\pi So we know the amplitude is 2, so is the period 4pi/2? I...

The\quad area\quad of\quad a\quad sector\quad is\quad \frac { 3\pi }{ 10 } { cm }^{ 2 }\quad and\quad the\quad arc\quad length\quad cut\quad off\quad by\quad the\quad sector\quad is\quad \frac { \pi }{ 5 } cm.\quad Find\quad the\quad angle\quad subtended\quad at\quad the\quad centre\quad...