<p>i got something like 1200 for the left riemann sum. i don’t remember if divided by b-a -.-</p>
<p>i think the reimann sum error you made must have been computational; as long as you took the left y values and multiplied by the correct heights you should at least get a point (+ knowing it was underestimation). i guessed C too but it was actually B for the shadow one 
mehh. [3,9] is right too. i put s’(2) for instantaneous rate. just think of it as velocity and acceleration —> acceleration is the change in the rate and not the instantaneous.</p>
<p>yes i got 3-9 for the particle too</p>
<p>what is the answer to the left riemann sums one divided by 1/20?</p>
<p>i think i got 60.8? something like that…</p>
<p>I got 25 something I think? Can’t totally remember.</p>
<p>Uh o…i think i got from (6,12) for the particle. How did yall get 3-9?</p>
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<p>I solved it individually and got t=3,4,5,6,7,8,9 and forgot to put the interval…D:
Will I get any points or is it bust?</p>
<p>Well the values in between the integers would have the same property (I forget if it was increasing or decreasing or whatever), so you’ll probably lose a couple of points. But if you showed correct work up until that, then it won’t be too bad.</p>
<p>how did you get that?
i thought it represented the average temperature and nothing ever went below 50 i THINK…</p>
<p>And i keep seeing people say they got the abs value of 2/t…what was the question?</p>
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<p>Thoughhhtttssss</p>
<p>I won’t discuss the questions specifically because I am, as they sad, a fraidy cat but.
I really doubt the curve on tests like Calc AB will ever dramatically decrease, if not just because the whole subject is very intimidating to A LOT of people. Many kids were going in excited for whatever drawing they could send graders on the FRQ’s, either confident that they wouldn’t pass, or because its mostly a senior year course, and they know if they will or will not be recieving credit anyway.</p>
<p>So that holds down the range pretty far, and beyond that there’s so many little points (but of course of equal weight) that people overlook. Units, even super general formulas, and the correct limits are all usually points that even the smarties can overlook…And are maybe possibly sometimes all I know I got.</p>
<p>Oh and also, as someone asked, if you get one early part incorrect, but follow through and do the right operations on that wrong value, you DO get those points! I’m not sure if you’ll always get the like “final answer” point, but for performing operations on the wrong one, yes, it’s alright.</p>
<p>You know, I keep forgetting to remind myself that I’m on CC, so 75% of the people on here are going to get 5s. -_-</p>
<p>@mathisfun: I forget what it was specifically, but I got the integral of the abs value of 2lnt for it, because I remember the choices. It was like total distance traveled, but I can’t remember off the top of my head if 2/t was acceleration or velocity.</p>
<p>That wasnt the answer to the TDT problem in the free response, right?</p>
<p>And i think i got between a 70-80…def 5?..maybe a 10% chance of 81-90</p>
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<p>For the riemann sum i got 60.79. So Flowerpower, you are right.</p>
<p>It was a multiple choice, I think.
And if you got over like a 73 then probably a 5, if more a 70-73 then it depends on the cutoff.</p>
<p>Augh… I fked up on FRQ # 2 with the temperature one. I’m anticipating a 2/9 on that one…
sighs…</p>
<p>and for the #1 FRQ. from integral of 1-2. did you just have to infer that at point 2, the y value is -0.5; so you just take the small triangle to get -1/4 for the integral of 1-2?</p>
<p>@SwedishM8: That’s what I got, yeah.</p>
<p>at x=3 the y value is -1 so the slope is -0.5.</p>
<p>In regards to abs value of 2ln t, what question are you guys exactly talking about?</p>
<p>And, I’m getting worried with everyone saying the curve is going to be harsh. We have to remember that just because the material is easy to us, we have no clue how a majority of other students performed. So lets not jump to conclusions.</p>