October 2010 - Math II

<p>it was annually</p>

<p>I personally felt that question was very unfair, IAmCool, since they usually give you the formula to solve for decay/interest problems. I omitted it since I only knew 1/2 the equation (Final amount=Ae^t/rate…I know that’s not right but the first half is).</p>

<p>I’m pretty sure annually… with those numbers I would have used an equation like:</p>

<p>300=100*1.048^t
log3/log1.048=t</p>

<p>So I put D</p>

<p>seems like everyone did bad on the questions 30 and onward… hopefully the curve is big</p>

<p>I feel so stupid right now because I got the easiest ones wrong. How did you guys do that question about how many bits were in a gigabyte? And the question about 20 miles at a speed of 30 mph.</p>

<p>@240000000
SAME i was going the omit the question, but i thought i’d be skipping too much then. also, it was by a stroke of luck that I looked at the decay formula in the kaplan’s book like right before the test. i just guessed that it would be A(1+rate)Tt because decay is A(1-rate)^t but i didn’t read the question carefully, so i wasn’t sure whether or not it was semiannual or yearly which freaked me out at the end</p>

<p>Hmm… I took too much time on the easy questions double-checking and yeah, so was flailing a little bit the second part of the test. Omitted 5, not sure about a couple. I got 780 last time I took it and just retook for the heck of it to see if I would do better… but if I did same/worse it would look awful. Should I just cancel? (didn’t take any others)
^^punjabX I did dimensional analysis, which ended up just multiplying all the big numbers together, ended up getting 2^33 I think?</p>

<p>oh, i think that was something like 2^33?</p>

<p>^ yea it was…</p>

<p>So are SAT II curves determined on a per-test basis? </p>

<p>With regards to the heartbeat question I put 60 BPM, but not in total confidence. The interest problem came out to be somewhere in the ballpark of t=23.4 or something like that, but you had to take into account that interest was specifically calculated at the end of the year, so rounding down to 23 would leave you short.</p>

<p>■■■, i’m reading this and i’m crying. 6 omits and like 3 wrong already.</p>

<p>the question about 20 and 30 mph was just using k. i believe it was y = k x^2.</p>

<p>Edit: nvm, i used v= d/t. the k was was for a different one.</p>

<p>For the gigabyte question, it was just 2^10 time 2^10 times 2^10 times 2^3, which was 2^33.</p>

<p>I used V=d/t for the mph question.</p>

<p>@collegetips: “Yamster…I’m referring to MATH 2 test too.But the first 2 pages on this thread are the International guys posting about the INTERNATIONAL test of this same test(see the time zone),later posts are of the US test.Both tests can’t logically be having the same questions,right? That’s what I’m curious about.”</p>

<p>I’m referring to the one in the US. But I didn’t see the international people post any of the same questions.</p>

<p>

CRAP! You’re absolutely right!</p>

<p>“I feel so stupid right now because I got the easiest ones wrong. How did you guys do that question about how many bits were in a gigabyte? And the question about 20 miles at a speed of 30 mph.”</p>

<p>I’m pretty sure I got those 2 right.</p>

<p>@LBlock: Are there any functions that work for that question besides y=x and y=-x, though? Both of those symmetrical about the origin, yes, but both of them are also symmetrical about y=x. O_o</p>

<p>hey,Yamster I am international test taker.And I noticed that the questions I solved today are definitely the same as the questions you are discussing here.</p>

<p>“For the area of the triangle one, I actually used calculus to find the integral… got 13.5… then decided it didn’t look like 13.5 and GUESSED 9. ■■■.”</p>

<p>Yes it was 13.5. I didn’t really see the need to guess for that one. It was solvable.</p>

<p>Goodness me, browsing through all the posts above, it’s been pretty clear that , by some weird twist of fate, the whole world has ended up having an identical set of questions… i’d posted earlier today after my SAT, when the US guys in the east coast were probably waking up in the morning, and the americans come up with the same set of questions with the same serial numbers as well ! oh well, on the whole , it seemed pretty easy today… lord bless texas instruments… </p>

<p>and by the way, what was the answer for the probability of choosing a number between 7/8 and 4/3 such that it’s greater than 1 or something like that ?</p>

<p>it sounded absurd to me : how on earth can one possibly choose “a” number between 0.875 and 1.3333 when there are INFINITELY many numbers between them ?!?!?!?</p>