<p>i also used law of cosines....got .866 for the answer or something...not sure though, could be wrong</p>
<p>^ I second 15 & .866.
Ahh so mad I forgot to divide by 3 for the rotation!! :(</p>
<p>Yeah, come to think of it, I think I put 15 down as the answer. I initially typed out a response based on 15 as the answer, but for some reason (probably sleep deprivation - I only slept for about six hours the night before) I changed it to 13. And Def890, I got that as well. Looks like we're in good shape here. :D</p>
<p>adman:
I think I forgot to do that as well. Crap. :( Sigh...well, thank you Jesus for that lovely curve on the Math IIc. I've gotten one confirmed wrong and another skipped question, so that leaves room for four or five more wrong answers. <em>crosses fingers</em></p>
<p>"probably sleep deprivation - I only slept for about six hours the night before"</p>
<p>I only got about 6 hours, too... I was totally planning on going to bed early, but it just didn't happen. XD</p>
<p>Either I don't remember this question (the prime # one) properly, or it should be omitted! From my (foggyish) memory, the question was</p>
<p>If n is a prime number, n+2 is prime & n-2 is prime. Which of the following disproves this?</p>
<p>13....15....17...and some other choice.</p>
<p>Let n= 13; n+2 is 15, which is NOT prime. n-2 is 11 which IS prime. => If n is 13, then the statement is not true....</p>
<p>Let n=15; to begin with, 15 is NOT prime...however, n+2 is prime and n-2 is prime. But I don't know if this technically disproves the statement or not.</p>
<p>Let n=17; n+2 is 19, which IS prime. n-2 is 15, which is NOT prime. => if n=17, then the statement is note true...</p>
<p>Y'arrgh! Would the answer be 13 or 17? or 15? I have a feeling I don't remember this question correctly...</p>
<p>the other choice was 25, i guessed 15 =/</p>
<p>Me too, jj_w. I remember it was so clear on the test, but it's all so fuzzy now. Maybe I should go to bed (it's 4.30AM in Malaysia).</p>
<p>The question was:
If n+2 is prime & n-2 is prime then n is a prime number
disprove by counter example</p>
<p>therefore 13 is prime and 17 is prime, so 15 must be prime. 15 is factored by 3 and 5.</p>
<p>I put 15, and I'm almost positive that's right. 13 and 17 are both prime, which by their statement should mean 15 is prime. However, 15 is divisible by 3 and 5, thus 15 disproves the statement.</p>
<p>//edit: ^ Jinx.</p>
<p>Heres my question: Does and 800 is SATII Math II vindicate not 800 in SAT I math (760)</p>
<p>mike: Yes.</p>
<p>yea im pretty sure its 15.... it asked what is a counter example of this statement: if n+2 and n-2 are prime then n is also prime</p>
<p>did u guys get -1/2 for the parametric one?</p>
<p>yea i did for ^</p>
<p>i did too, but its incorrect
-1/2 is the x intercept where they asked for the y intercept. :(
Answer: -1/3</p>
<p>hey guys how about the one with two triangles, where Vince is 6 feet tall or something and they ask for the height of the tree?</p>
<p>Ohh I remember the tree one. The trick is to add the 6 at the end.</p>
<p>^ I believe it was 54?</p>
<p>It was tan(26)100 + 6</p>
<p>in the prime number question, was 15 the second multiple choice ( was it B)?</p>