Math Level 2 - October 2014

<p>For those of you who sat for the Math Level 2 test today -- how did you find it? </p>

<p>it’s tomorrow </p>

<p>yea it’s tomorrow. anyone else taking it? really nervous…not very good at math</p>

<p>I just took it a couple of hours ago, in my time zone. It wasn’t very good for me – didn’t pace myself properly, and there were a few questions that were a bit strange to me. :/</p>

<p>Is there anyone else that took the test already? </p>

<p>@audrey2412‌ Do you know if it was a repeated exam? </p>

<p>What do you mean, a repeated exam? @bartholomew503</p>

<p>@audrey2412‌ Apparently collegeboard sometimes reuses past exams so I was wondering if that was the case. I guess it’d be hard to know anyway though, considering that they don’t release all of the past ones. </p>

<p>Oh well. I’m sure you did fine, though I’m worried about the aforementioned strange questions. </p>

<p>the questions were actually pretty good but they were kinda long…
I didn’t take a lot of practice test so I didn’t get my timing ryt…but ya…otherwise it was fine</p>

<p>It was alright I guess. Some weird questions, so guessed like 4. </p>

<p>Omitted 4 or 5 :’(</p>

<p>It was ok . A few tough questions , but hoping for a 750.</p>

<p>What did you guys put for the balls in the hat and the probability of pulling a red ball then a green ball then a blue ball? i put 1/6</p>

<p>Also, for the matrices question where it was like ax + by = 4 or something and had infinite solutions? i forgot the answer but I just put B</p>

<p>Also, number 50 for the cosine of the angle, I got B as well, which i hope was 1/8 but didn’t have time to check what the answer choice was so i just put B. Can anyone confirm that number 50 B was 1/8?</p>

<p>I got 1/6 for the ball question and 1/8 for 50. Don’t remember what it was . The matrices one was hard so I left it. And there was a question in which f(x) = If(x)I . The answer choices were x , x^2 , x+1 and a few similar ones. I chose x. Anyone knows the answer?</p>

<p>@SameerHussain That was x. The function was actually f(x) = - | f(x) |, and x < 0.</p>

<p>What was #50 asking for again?</p>

<p>okay i have some questions which i don’t remember too well but i remember the basics:</p>

<p>plane has a line going through it i got the answer as an infinite number of lines idk the whole question </p>

<p>for the balls in the hat i got 1/6</p>

<p>for the symmetrical line x=3 what’d you guys get? i think the was late 30s early 40s</p>

<p>And the one that said if X is an integer squared and n is an integer what is Y if it’s an integer
some of the choices were like x+y/2=n^2 x+y=n^2 etc etc</p>

<p>how about the rectangular prism one? it was like the 9th question or so.
it either asked about surface area or volume, i’m hoping volume and it was like W=3m and h=4w or something.
i got 36x^3 (i think?)</p>

<p>@philips For the symmetrical line I think it was -1? Because it said one of the points was (-2, -1) or something, and since the function was symmetrical about x = 3, the y would still be -1.</p>

<p>@MyRealName‌ the question was asking for the cosine of θ when you had all four sides it was 4,5,6 (i think so)
i just did law of cosines c^2=a^2+b^2+2ABcosθ and got 36=25+16-(2)(4)(5)cosθ
36=41-40cosθ
-5=-40cosθ
divide both sides by -40
0.125=cosθ</p>

<p>@MyRealName‌ great i think i might got that one even though i was unsure of “symmetrical about ****” (yes, i know what symmetrical means i just was unsure in this context). but i do not know. do you remember the actual question? all i remember is something involving 7 when i got my answer</p>

<p>The questions were not bad but I had to rush through because I was running out of time. Ugh I didn’t get to solve a question I knew :(( okay the one about nornal distribution was uncalled for</p>

<p>what was the one about normal distribution?</p>

<p>also for the one about standard deviation of a line going to the mean (which i think was 0) what’d you get? </p>