<p>Its I AND III for inverseee!</p>
<p>I and III is wrong?</p>
<p>I and iii is right :|</p>
<p>I and III is right … stop complaining people!</p>
<p>what was the f</p>
<p>@cha</p>
<p>Yeah diff problems then. The one im talking about is three consecutive positive integers are multiplied and they must be divisible by 2,3,4.</p>
<p>its I and III check wolframalpha</p>
<p>number III was 1/(x-1)+1</p>
<p>[inverse</a> of 1/(x-1)+1 - Wolfram|Alpha](<a href=“inverse of 1/(x-1)+1]inverse - Wolfram|Alpha”>inverse of 1/(x-1)+1 - Wolfram|Alpha)
1/(x-1)+1 = x/(x-1)</p>
<p>@eagles 1<em>2</em>3 = 6, and 6 aint divisible by 4
I and III then… alright not gonna argue, ran outta time</p>
<p>Are you guys sure the probability one in the end wasn’t 5/9? This is what I put, but I guess I’m wrong. After all, 2/3 * 1/3 * 2 (amount of ways the two probabilities can be arranged) makes… 4/9? Do you agree with my Maths here? I guess I just discovered a mistake. :/</p>
<p>I think the test was OK but some questions were just really unpleasant. I’m still hoping for an 800 though - left four blank and let’s hope there aren’t too many mistakes.</p>
<p>What are you guys’ score expectations and how many questions did y’all leave blank?</p>
<p>Another thing. There’s one question about the graph of a polynomial that I remember distinctly. It goes something like…</p>
<p>Polynomial: a(x-b)(x+c)(x+d) + graph of it
I put the a>1 answer where two constants can be equal but one must be different, AFAIR. I don’t remember the specifics of the question, though. Any ideas as to question wording and solution?</p>
<p>im expecting a 750+ , 1 blank i think or i might’ve left none blank</p>
<p>I lost count of how many I left blank. And I’m generally amazing at math in school. This test was a disaster if you ask me!</p>
<p>Lol guys trust me lol it is 4/9. ty europeen. order does matter. What are the odds that either both calls are out of nation or in nation? 1/3 x 1/3 + 2/3 x 2/3 = 5/9. The chance that doesn’t happen (1 call takes place within the nation and another out of the country) is 1- 5/9=4/9 . This is another way of doing it besides multiplying by 2 by caring about order (ie out of nation call first). 
. Hope those who think it is 2/9 get this explanation. 
GL guys.</p>
<p>I found 2/9 and 4/9 question the most difficult. But I went for 4/9 in the end. What do think about the curves guys? -5? -6?</p>
<p>i think -6</p>
<p>Can anyone find the curves for the november test they supposedly copied</p>
<p>^ Only problem is that people from that year didn’t post their scores and how many they got wrong. (just their score) Also, the curve was not released. Anyway, I believe a -6 could be 800 but -5 has a better chance because % right are porbably not low enough for -6 because the questions were relatively not that hard when you compare to the 2 tests cb released. Maybe in between the two but that is it.
Btw, if anyone has any questions I mean if you need explanations I could try to help.</p>
<p>did anyone else get 6.2 for the magnitude question? my test said cos 50 instead of cos 130 0.0</p>
<p>What did you guys get for the question:
- What is cot(x) if tan^2(x)=1.0913
- What is the function of the sideways parabola?
and the arctan one?</p>
<p>Also, a few answers I got include:
- something like 1.2 for the log question
- 2/9
- slope is -1
- a(x-b)(x+c)(x+d) = a>0, b=d, c=/=d
- abs(sec(x))
- y= 3/2 for the x,y,z
- y is approaching is increasing w/o bounds (approaching infinity)
- doubling the square length = 4x larger area
- m_0/2^t
- k=m
- x has a hole at 1
- folding it will result in ~10 feet
- I did 3500 x (1.054)^4 for the compounding rates one
- f(x)=(x-2)^2+2</p>
<p>@silentbullet your right it gave us 50 except you subtract that from 180 to get 130. Or you could’ve done it the other way and place the vector in i/j/k form. For example 4c0s50 i +4sin50 j +8 i. And find the madnitude without direction or use the law of cosinses with 130, 4, 8.
@whitelights
don’t remember #1
x=-t something y=t
abs (sec)
Btw, you checked the consolidated list right? It’s a bit back but it has like 23 questions. We hve discussed like 30 by now.</p>
<p>0.0 why do we have to subtract 50 from 180? didnt it say that the angle between the two vectors = 50?</p>