<p>Post your answers guys! 48 hours have passed :D</p>
<p>Gah. I just started a thread too. Everyone come to this one!</p>
<p>Here’s the linnk to the ?s:</p>
<p><a href=“Supporting Students from Day One to Exam Day – AP Central | College Board”>Supporting Students from Day One to Exam Day – AP Central | College Board;
<p>I’m pretty sure for number 6 there are NO inflection points.
You test x=1 and you get that there is no change in concavity.</p>
<p>Uh oh…here is where I see how badly I failed.
Are they good about partial credit?</p>
<p>Some one just post the answers they have, and then we can discuss those…</p>
<p>I wont receive the answers I wrote down in my green packet till Monday. I don’t really remember them >.<
For #1, Caren lived closer. 1.4<1.8miles</p>
<p>I don’t remember all my answers…but I’ll do the ones I do remember:</p>
<p>1) don’t remember answers
2)a) 980 i think?
b) 1.3 hours i think??
c)500 + hours…gah my memory sucks
d) .53 something</p>
<p>3) a) 12. something meters?
b) can’t rmemember
c) maybe this was 12. something. gah
d) 1.57 something radians</p>
<p>4) don’t rmemeber</p>
<p>5) a) -3
b) b/c) one was 8…the other 18
d) used MVT to explain secant line…and bsed the tangent line one</p>
<p>6) a) too lazy to type
b) again…lazy (and dont rmemeber)
c) I got p=infinity so it diverges on all x…prolly screwed up
d) one inflection point…idk why…bs’ed it</p>
<p>sorry, not too much of a help since I can’t remember stuff, but maybe if other people post their answers my memory will be refreshed.</p>
<p>I know I got 4.25 for euler, my angle was 1.45 radians however i heard other ppl got 1.5 so idk about that. Im really worried about the first two. they seemed pretty easy, but it appears I might have made some careless errors. Does anyone know the answers for those?</p>
<p>I think I made a lot of careless errors…I’m so angry at myself.:(</p>
<p>I think I answered the Euler’s one in a fraction. Hopefully I added correctly. That would suck if I didn’t. I suck at “easy” math.</p>
<p>for number 3, i know i had 12.9 something for part c, and i think i had 1.936 for part b. part a idk i think i got a really small number from a calcualtion and subtracted it from 11.4.</p>
<p>I think I made a lot of careless errors…I’m so angry at myself</p>
<p>^Same. like for one of them…pretend the fxn was x^2 and u had to find the area…i put x in my calc and found that area</p>
<p>(it was much more complicated than just “x” and “x^2” but i just used those fxns to express what i did)</p>
<ol>
<li>
a. general: (x-1)^(2k)/k!, starting at k=0
b. general: (x-1)^(2k)/(k+1)!, starting at k=0
c. -inf<x<inf, converges to all x
d. no points of inflection</li>
</ol>
<p>i got the same for 6a and b but i had 0<x<2 for interval of convergence…and i was clueless on part d haha</p>
<p>how did you guys do the angle, I did arctan(11.4/distance traveled in x) and got 1.4something</p>
<p>any of you guys interested in making a chatroom and discussing some of these?</p>
<p>i think i had 1.936 for part b. </p>
<p>^I think I did too, not that I look at your answer.</p>
<p>and damn. mad about 6 c and d</p>
<p>I believe you can use the velocity vector at the point of entry, along with tan theta, to find the angle.</p>
<p>yes! i got 1.4 something too, i basically did tan theta=y/ and then like i differentiate it and plugged in stuff…</p>
<p>it wasn’t arctan (11.4/something)…it was something else…not 11.4…because you had to find x(t) and solve for when t= whenever she hit the water (I think 1.936)</p>