<p>for these types of questions,</p>
<p>A. I only
B. II only
C. III only
D. II and III
E. I and III</p>
<p>how many where there on the test in total?</p>
<p>i got 1.7 something & E for the standard deviation problem
i think 1.7 is right because if you add 1.7 to -2..you would get -.3
if you subtract the squareroot of 11 from 3..you would get -.3 as well
this means the two circles are tangent at x=-.3</p>
<p>^ I don't remember putting 1.73 either lol. I believe there were like 2 or 3 questions like tohse, hcvops...although I don't remember specifically what.</p>
<p>oooh, I see, 1.68 rounds to 1.7.</p>
<p>Sum of infinite Geometric sequence is 2.25 or 2 1/4</p>
<p>edit: Okay, seeing these answers to the problems, I officially did not get an 800 ): 7 blank (1 from a brain fart) then prob -1 depending on the Standard Dev problem (need more consensus)</p>
<p>o ok because I put 'only I' for one of them and I can't remember whether it's the one that everyone's talking about or not</p>
<p>^ The answer was 2.25 or 2 1/4 because as the 5^x x-> infinity, it became 0 so essentially it was just</p>
<p>something something = 2 + 1/5 + 1/25 + 0 0 0 0</p>
<p>woah: sorry for the triple post...my browser bugged out &</p>
<p>Yes it was 2.25. The only limit question on the test was something like.. 5^-x + 1 as x gets infinitely bigger... answer was 1. it's so insignificant i shouldn't have mentioned it but I remember it. Hmm what others were there...</p>
<p>Arggg... I skipped 2 and I think I missed 1. But I did everything so fast I'm bound to have made a few more mistakes XP</p>
<p>There was also a function in which you had to solve for a constant (k?) and I remember getting -21. Does anyone else remember that one?</p>
<p>^ Hipster, you make my self esteem plummet.</p>
<p>There was the similar triangles w/ Sin A/ Sin B</p>
<p>I skipped that</p>
<p>Then, there was the tan x = -.57 or something: maybe -.577. It was after sin 2x or something then plug x into tan w/ calculator</p>
<p>Also, there was the max/min question</p>
<p>:: I got -2 (Critical # of endpoint) since the max was like 30 (also graphed it on calc) can be solved w/ derivatives too</p>
<p>--- Anotehr question was the rotation of a triangle around XY or y-axis. Used solid of rotations quickly (you can also use pythagorem). the triangle height/base/hypotenuse were multiple of the 3,4,5 triangle.</p>
<p>Was that answer like 20pi or ssomething?</p>
<p>yeah I got -21</p>
<p>Oh yeah! I remember putting -21 too but I wasnt sure about that.</p>
<p>did you guys get the one that was like the mean of sum of numbers to 225 or something?
how about the one tha twas like the probability of -1<x<1 and -1<y<1 is less than or equal to 1?</p>
<p>I vaguely remember -21..but what was the question?!?! I can't get any wrong ! ): I omitted 5 bleh. I want 800 so badddd. </p>
<p>The cscx=2 what is tanx? question I skipped, but I did get .577 to be an answer (choice C). I skipped it because it gave the interval as pi/2<theta<pi. I wasn't sure if my answer was right, then, as I did it using triangles.</p>
<p>I also skipped the -1<x<1 -1<y<1 question, I think.</p>
<p>The mean of the sum of positive integers = 112.5... I think... I wasn't too sure about that one actually.</p>
<p>The rotation of the triangle about XY was 2000pi. E.</p>
<p>=( Sorry, didnt mean to brag. I probably got much more wrong than I thought.</p>
<p>I think the triangles one was 6 though, you had to use the Law of Sines. Seriously, this test is hard don't feel bad.</p>
<p>^ That's wrong. It should've been -.577 since the sin x = 1/2 around pi/2 < theta < pi was 150 degrees. That makes tangent negative.</p>
<p>The probability question, I got pi/4. </p>
<p>Sum of numbers 1+2+...225 was like 225/2 and then round because of n. Answer: 113</p>
<p>For the rotation of a triangle around the XY side, it became a cone,
and I remember getting something like 1500pi? </p>
<p>and I remember getting -2 for the y-max thing.</p>
<p>and I also got -2 for this question where g(x) and f(x) was graphed and they asked for the x-coordinate of a point where g(x)-f(x) = 0. </p>
<p>any others guys?</p>