<p>how do you guys think u did?
math was not the toughest part, but there were some
tricky questions-</p>
<p>I'm so mad i couldnt remember this one.</p>
<p>(x+y)^2 = 100, (x-y)^2 = 16 whats xy?</p>
<p>.................dude seriously i saw this one of the prep books and i couldnt remember how to do it, but i think i guessed it right.. I dont remember the answer choices</p>
<p>The answer is 21.</p>
<p>x + y = 10</p>
<p>x -y = 4;</p>
<p>Lin. combination yields 2x = 14, thus x = 7. Then put x back in equation and find that y = 3. 7 * 3 = 21;</p>
<p>Do you remember that one question with "trifactors" or something like that? Does anyone know the specific terms for that question?</p>
<p>Anybody remember the one that was like .. x^2=4(y^2) and x=2y+1 ... or something like that?</p>
<p>There was two equations... and find: how many (x,y) values exist?</p>
<p><em>x+</em>y=......
<em>x+</em>y=......</p>
<p>(a)none
(b) one
(c) two
(d) three
(e) more than four</p>
<p>(x+y)^2=100 (x-y)^2=16</p>
<p>the answer had to be 21 (or at least i think that was the answer)</p>
<p>7+3 squared is 100</p>
<p>7-3 equals 4 and 4 squared is 16</p>
<p>they asked for XY and 7 times 3 is 21</p>
<p>thats what i put</p>
<p>I got 21 as well.</p>
<p>was one of the grid ins expiremental because i bombed the first one</p>
<p>What was that rectangle in a circle question like again? It was like, a two rectangles inside this circle has a perimeter of 12. How many other rectangles can fit in the circle?</p>
<p>A)1
B)2
C)3
D) 4 or more</p>
<p>Also, there was a cylinder that has a diameter of D, and a heigh of H, what is the smallest(largest?) circle that can fit. One of the choices was like d^2h, one like dh, dh^2, d^2h^2</p>
<p>Question) Do you remember that one question with "trifactors" or something like that? Does anyone know the specific terms for that question?</p>
<p>It was grid-in question, I think.... I remember it was "9"</p>
<p>The answers were</p>
<p>4 or more
9</p>
<p>cubsfan23, I got 4 or more and d^2h
ldu1207, I got 9</p>
<p>Yeah, I figured it was 4 or more, because its a circle right?</p>
<p>did any of you guys get a section w/ a formula:</p>
<p>pi(6h^2/h) or something like that?</p>
<p>I'm really unsure on the answer to the question I mentioned above .. the choices were like</p>
<p>4
-1/2
-1/4
1/2
1/4</p>
<p>or something ... Anybody remember?</p>
<p>i actually got just 4 for that question</p>
<p>I got 1/2.</p>
<p>You guys are just posting the first equation. It was a system of equations, I'm sure!!!</p>
<p>I got 1/2 for that one as well.</p>
<p>1/2 here too.</p>
<p>To summarize.....
Section 2 : Math ( Grid- in -> It surely is not an Experiment, because collegeboard always give one grid-in section for real test)
Section 5 : Math (only Multiple -> There was on graph indicating two lines: CD / DVD.......// (a^6 * a^6) ^ n = (a^n)^3....something)
-------------> Section 5 is experiemental I think.!!
Section 6 : Math (only Multiple -> there was some picture and the question asks if this picture rotate to left 90 degree..../ Vann gram stuff/ there was graph asking how more ......May than combined January and February)
Section 9: Math (20 minutes question; of course it is not an experiment!)</p>
<p>I think I put -1/2 ... >.></p>