<p>are you all saying a non 800 on math2 hurts your chances at ivies??? I would think they go by score and not percentiles and antyhing 750+ should be solid… I mean if they are going by percentiles, I might as well take math1c. My friend who is alot alot alot weaker than me in math got 2 wrong on it and got a 740 which is 95 percentile. I would like to think a 740 math2 is better looking even though its only 68 percentile.</p>
<p>I completely agree with imnastywitit. I have exactly the same problem. I mean I always struggle with time on math tests, but especially in the SAT because I tend to check my early answers in at least two different ways, and don’t have enough confidence. Then when it gets to the latter part of the test, I don’t have enough time to do those questions properly and end up making silly mistakes. And finally i’m not able to attempt several questions as a result of this.</p>
<p>And jokbond i’m pretty sure that a 750+ is solid. I know people who fret over getting 770s but their CR scores are like 640s. I would be more worried bout the 640 than the 770 in Math2. I think it also depends on the major you want to do. Engineering and science-related majors are highly competitive when it comes to math and sciences etc. So for them you need higher scores.</p>
<p>if you omit like 5 what would it be? just curious about how the curve usually worked in previous tests… and would it be bad to take it for third time?</p>
<p>Sorry , but if I omitted 8 questions, how many can I afford to get wrong for a 750?</p>
<p>The answer was the 2nd and 3rd quadrants only…</p>
<p>cos(x) = -(1-sin(x)^2)^(1/2)</p>
<p>Plug in something from the first quadrant, like pi/3 (where cos is 1/2).</p>
<p>cos (pi/3) = -(1 - sin(pi/3)^2)^(1/2)</p>
<p>1/2 = -(1 -3/4)^(1/2)
1/2 != -1/2 </p>
<p>WELllllll goldfish u are wrong… infact u forgot ur own theeory …</p>
<p>In the 2nd last step when u have 1/2 = -(1 -3/4)^(1/2) …
there when u take root of 1/4 u can as well take in a -1/2 so it will be 1/2 ==1/2 so that works and that is permitted …why will u take the positive value only… so the correct answer is all values …</p>
<p>so blogged the solution to your problem is to come to grips with the fact that u just gotta do the questions and u might not get an 800, but as long as u do ur best its all good. A few of my friends who are great test takers owe their great test taking skills to the fact that they are confident on tests and really dont care if everything doesnt go right.</p>
<p>yes and the weird thing is that i am a good math student. i do HL math in IB which is no course for mugs. i just over-obsess.</p>
<p>A simple one but just making sure;</p>
<p>it was like what to the 7th power is 5, something like that?</p>
<p>No, the square root of 1/4 is 1/2, not 1/2 or -1/2, it is simply 1/2.</p>
<p>There was one more… Like, a rectangle with the bottom diagonal Root(2) or something, what is the length of the long diagonal?</p>
<p>
</p>
<p>Well for once I’m glad I was wrong because i put 2+3rd quadrants as well. :)</p>
<p>2 and 3 quadrants is right. The square root of a number is always positive.</p>
<p>bump</p>
<p>anyone know this? the height i think was 5 and I think it gave you the width of the bottom rectangle and you had to use root(2) to find the length and do root(a^2+b^2+c^2)=length of the long diagonal.</p>
<p>That is what you would do, but I forget the numbers. I though the diagonal was something like rt(83) and the height was 5 or so. I really forget though.</p>
<p>Is anyone going to cancel because of what was posted in this thread? So far, I’ve missed three and in this thread, but I probably won’t cancel unless one more mistake of mine surfaces.</p>
<p>Now that I’ve read Smartmind’s solution, I am getting confused again!
I put For all x values, so it would be a good news for me if I got that right.
But I’m really wondering why it wouldn’t be positive or negative?</p>
<p>No, it is quadrants 2 or 3. Not all values. The sqaure root of 1/4 is 1/2. It is not 1/2 or -1/2. The square root of a number is ALWAYS POSITIVE.(for emphasis)</p>
<p>bump…</p>
<p>What would be my score with 5 wrong and 10 omits??</p>