<p>Yeah. I’m pretty sure that SD doesn’t change. An answer choice said that the SD changed. So obviously that’s wrong, and the question was asking for what wasn’t true, so I think I’m right.</p>
<p>@Newton: there was a matrix question? i dont remember any…</p>
<p>predictions for a 41.75? Any chance it could be an 800? How often in the past was a 42 an 800?</p>
<p>^ I want to know the same thing</p>
<p>@ Newton, you from the east coast? definitely no matrix for west coast</p>
<p>the curve will hopefully be loser, because from what ive heard, the test is usually way easier than barons, but this time i thought it was as hard as barrons</p>
<p>Oh… Sorry I remember the question now. Yes, the question asked which of the following was not true, and as soon as I saw something about the standard deviation changing, I chose it. 
My bad.</p>
<p>what was the 599.7 question about???</p>
<p>i don’t remember there being a matrix question on the test?</p>
<p>There wasn’t a matrix question…</p>
<p>hey guys should i send my score if it is <750 >700??</p>
<p>depends what school your applying to haha, but i would definitely send anything over 700</p>
<p>I used matrices for the area of a triangle problem with the coordinates. </p>
<p>However, in the problem involving disproving, I am fairly confident that the answer was not “2 is a prime number”, but rather 2(7)+1=15. Anyone else notice this from the page 49 post?</p>
<p>There has been some disagreement on that post, but I believe we came to the conclusion that “two is a prime number” was the only answer that really made sense.</p>
<p>
This problem asked for an example that DISPROVES the statement that prime p can always be expressed as 2k + 1 where k is an integer. 15 is not a prime number, so it doesnt have anything to do with that statement. It never said that all numbers expressed in 2k + 1 is prime.
“2 is a prime number” is the correct answer because it CONTRADICTS the statement, thus disproving it. The statement says that all primes, including 2, can be expressed as 2k + 1 where k is an integer, but if 2 = 2k+ 1, k has to be a fraction, not an integer.</p>
<p>It all depends on what the question is asking, and since nobody can confirm what it says without illegally copying the problem, we can’t determine an answer.</p>
<p>About the 2k+1 question, I saw an identical question on a practice test once. The answer was the one with 15.</p>
<p>^that really doesn’t have much weight though, because the answer could be worded so that “2(7) + 1 = 15” is correct, or so that “2 is a prime number” is correct.</p>
<p>test scores coming out soon :OOOOOOO, does anyone have great memory and remember what the 599.7 questions was about, and for the similar triangles questions, i thought they wanted us to find the one that was the same as tan Y and the answer was tan X</p>
<p>the 599.7 was for the max height of something, i think they gave you the quadratic equation</p>
<p>and the similar triangles i think they gave tanx and wanted tany as the answer</p>
<p>im nervous, do you think the curve is 43/50?</p>
<p>^ Yes, 43/50 is the most likely curve.</p>
<p>well last year my friend ommitted 5 and missed 1 and still got an 800, so i think its very likely the curve will be 43</p>
<p>btw, they didn’t give tanx as an answer choice right? cause that’d be stupid if they were asking for tanx and gave tanx as an answer</p>