January 2012: Math Level 2

<p>is it at all possible that 3 missed and 2 skipped is an 800?</p>

<p>Supers123, I omitted 2 and got 3 wrong (thus far…) I wish we both get 800 haha.</p>

<p>I just can’t “believe” that a question like the one we are discussing (subtly writing “contains” and then letting the answer be (-3, 3)) will be actually put forward.</p>

<p>We will never know though.</p>

<p>Rohit, did you put (0,2)?
I reallllllllllyy wish the answer is (0,2)…</p>

<p>hkim0713:
i know! i hope we can both get 800s!! im praying that i didn’t make silly mistakes</p>

<p>Yes, I put (0, 2). All the time I was thinking that they made some mistake, and this is a plausible mistake… so I was even more sure.</p>

<p>But anyways, to anyone giving the test later, if you did not have it already: GET A GRAPHING CALCULATOR. Seriously, If I had one, I would have gotten 800 for sure.</p>

<p>Supers123,</p>

<p>Same. I hope I didn’t make any other stupid mistakes!!</p>

<p>Rohit, I thought (-3,3) wouldn’t work because numbers like -2.99 won’t make sense in the given equation…</p>

<p>Because the set (-2, 2) is a subset of (-3, 3)</p>

<p>hkim: People are arguing that the question said “which set contains the values that x can take”, and since (-3, 3) contains (-2, 2) it should be an answer.</p>

<p>While logically this is correct, I don’t believe it because I don’t have the exact question to confirm if it said “contains” or not and because many people argued that (-4, 7) was an option too.</p>

<p>Right. And I was thinking that if (-4,7) was also an answer choice, then there shouldn’t be the word “contain” because then the question would have two answers. But we will never know…</p>

<p>what was the answer of obtuse-angled triangle with one angle 140 degree the opposite side 20 units and an adjacent side 15 units?</p>

<p>What were you supposed to find? The length or the angle?</p>

<p>angle. opposite to the 15 unit side.</p>

<p>I got 29 degrees when I solved it now. I probably put that as my answer, although I don’t remember.</p>

<p>yes 29 was the first option, how did you solve it?</p>

<p>The law of sines is the easiest way to solve for it.
sin (angle A) / (length of the side opposite to angle A) = sin (angle B) / (length of the side opposite to angle B)</p>

<p>Now I feel stupid. Again.</p>

<p>Well, other people are saying that (-4,7) wasn’t an answer choice and it was (-4,1) instead, which is what I saw when I took the test.</p>