<p>Yea got my numbers confused.</p>
<p>Nidget look above, can you help me out? thanks</p>
<p>For the very last question on the free response, was the answer “integration of (R-r)^2” I erased pie when I reviewed it</p>
<p>Do you think I would get points if I forgot to multiply the derivative cos(t^2/18) by 45, but I included the right units and right description of what was happening? (Partial Credit?). Similarly would I get any points for the last question if I integrated 1/e^y incorrectly? (But found antiderivatives and a c value? Just for having the right form? Also part d for the coffee question I got (32/5)e^-2 . Also in response to Matthew1782, there was no pi in the cross sectional area problem.</p>
<p>Can someone show me how you get 16/pi, not 16pi, for the area one. I can’t figure out where I went wrong…</p>
<p>Integral of 4cos(.25PIx)
U=.25PIx
Du=.25PIdx
(4/Pi)du=Dx
So the limits of integration are 0 to Pi/2 and the integral is 4cosdu (multiplied by 4/Pi on the outside
Antiderivative is sinu
Sin(Pi/2)-sin(0)
(4/Pi)4(1)= 16pi/2</p>
<p>That’s just g(x) but I assume you understand the -4/3 part.</p>
<p>After looking over the FRQs again, I’m expecting 8-9-9-9-6-5. Yay!!</p>
<p>Wait Jordan can you tell me how scoring works for this?</p>
<p>I’m guessing, I’ve gotten used to how they typically weight parts of the questions from so many practice tests, haha. </p>
<p>To clarify there is no official rubric yet.</p>
<p>Jordan, If i got 1a,1b,1c,2b,3a,3b,4a,4d,6a correct (plus a point here and there for sep of variables, integration, etc. About how many FRQ points is that? I probably got 20-25 right on multiple choice. Im hoping for a 3. Thanks</p>
<p>Will they take off a lot if I did the whole problem correctly but for the integration I forgot the “dx” at the end? I may have done this for every problem…</p>
<p>They give a max 2/6 if you leave dx out.</p>
<p>yay!!! Think I got a 9-9-9-9-9-7 !!! That hopefullly guarantees me a five. I just have one question. For 4D, if I left my answer as (75/4) * f’(3) will I still get the full credit. I had a brain fart and didn’t realize that it was the graph of f’ in the question.</p>
<p>“Hopefully guarantees you a five” lol</p>
<p>The only way you wouldn’t get a 5 with a 9-9-9-9-9-7 is if you woke up after the multiple choice ended.</p>
<p>Do you guys remember a graph of some sort in the multiple choice where you had to find the displacement or something? It wasn’t the total distance traveled by the particle one. You had to subtract the area under the x axis right?</p>
<p>Yes.</p>
<p>10char</p>
<p>Hm not bad thinking 7-5-6-9-9-4 which isn’t bad. Easily a 5 if I did well in MC which I think I did.</p>
<p>Ap you have a solid 5 even if you got 20 mc wrong. Not even kidding lol.</p>
<p>Really? Well guess I’ll find out in July but I definitely feel better haha.</p>
<p>Btw nidget were you responding to me or someone else?</p>