<p>wat about the one where it asked for the degree when the equation of circle was x^2 + y^2 = 5....the line was pointing toward bottom left (in 3rd quadrant)</p>
<p>Yup, I had a feeling it would be negative or something. Good thing I skipped.</p>
<p>Wait, why do you round up after doing 225/2 ?? I don't get that. It's just the mean, which can be decimal</p>
<p>@ I Hope UT: that was the polar eq. I got 306.6</p>
<p>You round...because for e.g.</p>
<p>1+2+3+4+5 : avg = 3
BUT what about</p>
<p>1+2+3+4: then it's 2.5 </p>
<p>1+2+3: average is 2</p>
<p>Do you see the pattern? Odd = without decimal. Even = with decimal</p>
<p>225 is odd.</p>
<p>Want Ivy the answer to that was 112.5 for sure</p>
<p>and I HOPE UT, the answer wat 206.6 also FOR SURE</p>
<p>now guys, what was the answer to the one about being divisibly by n! by 9</p>
<p>@ I Hope UT: that was the polar eq. I got 306.6</p>
<p>You round...because for e.g.</p>
<p>1+2+3+4+5 : avg = 3
BUT what about</p>
<p>1+2+3+4: then it's 2.5 </p>
<p>1+2+3: average is 2</p>
<p>Do you see the pattern? Odd = without decimal. Even = with decimal</p>
<p>225 is odd.</p>
<p>There is also a prob with the Permutation: like which of the following if and only if blahblahblah divisible by 9?</p>
<p>I got n greater/equal than 6.</p>
<p>The "x^2-25/x^2-5x" question wasn't actually x^2-25/x^2-5x, I'm fairly sure.</p>
<p>I remember the function zeroing out at both 5 and 0, however one of the two was actually defined as zero while the other was undefined due to the obvious... I DIVIDED BY ZERO OH ----</p>
<p>@wantivy: for the XY rotation one, you're positive that it was 2000pi?? :c ahhh...</p>
<p>@ihopeUT: I remember getting like 206.6 degrees or something</p>
<p>Ouch! Skipped over the pi/2<x<pi part, got that wrong.</p>
<p>For the sum it was 113 but I used the wrong formula and got 112 :P</p>
<p>@ BigWeight who "for sure" is the answer</p>
<p>We shall do this problem with more conventional methods than the 225/2 round up because n= odd (225)</p>
<p>Arithmetic Sum = (225(1+225) )/2</p>
<p>Answer 50850</p>
<p>Divide by 225 because n = 225 (#s in sequence) = 113.</p>
<p>@ BigWeight who "for sure" is the answer</p>
<p>We shall do this problem with more conventional methods than the 225/2 round up because n= odd (225)</p>
<p>Arithmetic Sum = (225(1+225) )/2</p>
<p>Answer 50850</p>
<p>Divide by 225 because n = 225 (#s in sequence) = 113.</p>
<p>wow i completely guessed and i got it i think...</p>
<p>and I had 4 blank with like 15 seconds to go so I just randomly filled in two without looking at the questions...bad idea? lol</p>
<p>For the 225 average one, I found the sum using the arithmetic series equation and divided by 225. I got 113.</p>
<p>I AM A TOTAL IDIOT!!!!!!!!!!!!</p>
<p>I even THOUGHT about that, lolilaughed. man... ;kajfkl;jadsk;l. 44=800 right? What about 43?</p>
<p>It is 113, definitely. oops.</p>
<p>Also, futureEE, I think I got E for that one, 5 and 0.</p>
<p>Another arithmatic sequence problem..we had to find the 3rd term I think? </p>
<p>I got 11 D. a1=3, (n-1)=2, and D was 4. So 11. They gave us that the sixth term was 27 I think? or something like that.</p>
<p>@wantivy: for the XY rotation one, you're positive that it was 2000pi?? :c ahhh...</p>
<p>^^^no, the answer was 1500pi</p>
<p>and i agree with lolilaughed....wait, so the answer was 113 not 112.5????</p>
<p>For the n! one, I chose n greater than or equal to 6.</p>
<p>Yeah, 11. The 6th terms was 23 and the 2nd was 7</p>
<p>Yes. The answer to the 1+2+3...225 was definitely 113 (see above for my explanation of odd and even division and rounding). You can also prove this with the arithmetic (also see above).</p>
<p>Easily, though, just 225/2 = 112.5 round because n=odd to 113. Box answer and flex your muscles.</p>
<p>Normal curve is 44=800. I HOPE 43 or 42 = 800 because that's probably what i got ><.</p>
<p>lol, that slope question with the f(1) = -2, I kept mixing up my negatives, lost 5 min, and right out of time ):</p>
<p>What was the f(1)=-2 question? I remember doing it.. it was in the middle of the right hand side page.</p>
<p>(1,-2) and what was the other point? What did we have to find.. like f(something else) right?</p>
<p>Hipster, it was n>=6. not any multiple of 9</p>
<p>To bigweight (under me), it was E, 2000pi. Almost positive.</p>
<p>For the n! one I got 9!? Didn't it say divisible by 9 or something?</p>
<p>Oh, and what did everyone get for the sum of the infinate series? 2 + (1/5 + 1/25?etc?</p>
<p>do u guys remember what the area for the triangle that revolved around the XY line was?</p>