<p>._.</p>
<p>…</p>
<p>Question:</p>
<p>If 4/3y=3/4X for what value of x does y=x.</p>
<p>It has to be 0, right?</p>
<p>Of course not
4/(3y) = 3/(4x)</p>
<p>If x = 0 then the whole thing is undefined.</p>
<p>Woops. I wrote that wrong.</p>
<p>(4/3)y=(3/4)x</p>
<p>Or 4y/3=3x/4 if you would.</p>
<p>The only possible way that three quarters of a number could be equal to four thirds of the same number is if the number is zero… Right?</p>
<p>Yes.</p>
<p>It simplifies to y = 9x/16
If x = y
then
y = 9y / 16
7y = 0,
y = 0 and then x = 0</p>
<p>:)</p>
<p>Yeah I did that. Just making sure it was right. Thanks man.</p>
<p>I felt really bad leaving the test, but hearing how many people said it was hard, I feel much better. I don’t think I got more than 6 wrong on either test (though I might be overestimating myself). Atleast I hope not.</p>
<p><em>hopes for good curve</em> When do scores come out?</p>
<p>Probably 2 to 3 weeks like usual.</p>
<p>Is there any way to know what the curve is like before that time?</p>
<p>
</p>
<p>Getting wrong deducts 10 points because of the .25 point penalty inflicted on incorrect answers (which is meant to discourage completely random guessing).</p>
<p>Out of 39 answers (assuming 11 are skipped), 8 wrong means 39 - 8 - 8*0.25 = 29 points.
Skipping 8 (in addition to the other 11) means 39 - 8 = 31 points.</p>
<p>You lose 1 point per skipped question and 1.25 points per missed question.</p>
<p>Does anyone remember what number the one with find the angle between the slopes? And also what was 38 about? Thankss!!</p>
<p>Hey would a 3 skip and 1 wrong give me an 800? Is there any possibility that it would be less than that?</p>
<p>Anythings possible but thats probably an 800</p>
<p>alrite thanks kinda freakin out here lol.</p>
<p>Generally speaking, if you can eliminate 1 answer, you should guess. However in reality, if you eliminate 1 answer, it won’t matter whether you guess or omit since you would, in theory, get the same exact score. If your luck is bad (as mine usually is), don’t guess I suppose :P</p>
<p>Angles b/w slopes = 9.16 degrees.</p>
<p>(m1 - m2)/(1 + m1m2) = tantheta where tantheta = the angle you are solving for. In this case, m1 = 3/5 and m2 = 2/5 if I remember correctly. Solve for what tantheta is equal to. Then take the arc-tan/tan^-1 of that number.</p>
<p>I’m &!$$ed at myself right now because I think I left the slope/angle one blank (my memory of the test is a bit foggy, but I know that this was one of the 5 most troublesome problems for me, and I seem to remember giving up on it), yet I solved it EASILY from memory once I got home.</p>
<p>oh hey same here i skipped 5 thinking they were the hardest ever and then when i got home i realized that all of them were insanely easy. now i wanna shoot myself cuz i got 5 skipped and 1 wrong… which won’t probably get me 800 T.T</p>
<p>it might get you an 800 depending on the curve i hope that the curve is 44 not 45 so that i can still get my 800 (=</p>
<p>btw just curious, i was wondering how long you guys studied for this test. i studied for 2 weeks, most of it used to learn how to use a graphing calculator and then did only 1 practice test friday night before the test lol.</p>
<p>I didn’t study at all. I had finals Wed-Fri right before it and I focused on those. But then again, I rarely study for these kind of things anyway</p>