<p>Guys, I’m on the west coast and I just finished two subject tests…we can definately discuss now.</p>
<p>was the second to last one 19</p>
<p>For #50, I had to draw on my fingernails and put them at different altitudes in order to visualize the planes and lines for part I…is that sad or brilliant?</p>
<p>attractive ^</p>
<p>what was the one that was like 16x^2-24x+c=0 where c is constant and the one root it double the other root?</p>
<p>^ the answer was 16. the roots were 8 and 16. 8 was not an option.</p>
<p>What did people get for the last one about the 3 planes (#50)? and also the one about
ln(sinx)=0 (#41)? i had no clue on the last and said .456 or something for the ln(sinx)</p>
<p>for the last question #50, i put I & III but now that i think about it, its just I…but im not sure and the lnsinx = 0, you had to make it e^0 = sinx which would be 90 degrees but that was not in the domain range, thus the answer was the one that said “does not exist”</p>
<p>i skipped 4 and i think i go #50 wrong AND i know i got 2 answers wrong for sure UGH i thought this test was harder than usual! i took so many practice tests and i used to get all 800s… what happened ? D:</p>
<p>the one with the one root and double the other, i even knew how to do it !!! but i forgot that the rule goes x^2 -(sum)x + product. WAH</p>
<p>can someone make a list of the answers?</p>
<p>oh wait for that one, #41, was the domain restriction 0 < x < pi/2 or was it 0 < x < pi ??? i remember it being 0 < x < pi BUT i remember getting my answer to be pi/2 and thinking it was not in the domain… confused, some1 help?</p>
<p>Am I the only one who thinks it was wayy harder than expected? I was practically plugging tons of equations into my graphic calc and switching settings and finding intersections >.< I’m doomed for this one :(</p>
<p>To xAlex, it was actually -8, not 16, because it was -24x.</p>
<p>@stevenf… <em>sigh</em> I’ve heard this reasoning from so many people today… No, the answer was in fact 16… Look up vieta’s formulas, and that gives you the answer in 2 seconds.</p>
<p>it was indeed 16 because you can set it up like (x-a)(x-2a)= whatever the function was. even though -24 is negative, the roots themselves would be positive.</p>
<p>@ivoryis yep i felt the same way just plugging everything into the calculator and ran out of time…left 7 blank…not a good test at all</p>
<p>About question #50, did anyone pick I&III ,I’m not really sure about that</p>
<p>to jade 1411 - yes i put 1 & 3 but idts anymore because 3 is probably impossible BUT NOT SURE! i hope someone else will clarify that for us.
to STEVENF - i indeed put -8 but 16 and 8 is right. the rule goes x^2 - (sum)x + product NOT x^2 + sumx + product … :(((((((( </p>
<p>and i left 4 blank, i thought it was hard too … and i have 4 wrong so far (counting #50) :(</p>
<p>Do any of you remember the specific wording of 50?</p>
<h1>50 said which of the following could be true with 3 lines and 3 planes when two of the planes are intersected by a line.</h1>
<p>I. The three planes ans three lines can make a triangle
II. The third plane is parallel to both of the intersected planes without any intersection
III. The third plane is parallel to one of the intersected planes without any intersection</p>