<p>I agree with dabi on 150pi.</p>
<p>second the answer C for tbonus’s question</p>
<p>for cylinder question, if the radius was 6 and height 5, then the answer’s 180pi…
if radius was 5 and height 6 then the answers 150pi…i dont remember exactly which one’s which…but people were saying the choices didnt have both 180 and 150, so if you think you put either one you got it right…</p>
<p>I’m pretty sure it was 150 pi</p>
<p>and yeah, does anyone know the answer to the Dracula question</p>
<p>yea the dracula one I remember one of the possible answers was who’s… but i cant remember the right answer</p>
<p>I thought it was with it’s main character.</p>
<p>the period one was definitely 2pi. 100% sure.</p>
<p>it was also saturn, not jupiter</p>
<p>^y wasnt it just pi?</p>
<p>it was 100% not 2pi, just pi</p>
<p>The period of the sine graph was definitely pi.</p>
<p>I’m getting conflicted opinions…</p>
<p>I put pi so I hope it is pi :)</p>
<p>it is pi, this has been confirmed</p>
<p>pi was half the period- if you added pi to each one you would get at the complete opposite amplitude</p>
<p>No, pi was the period. It was a positive cosine graph, so it started at its positive amplitude. It hit its negative amplitude and the the x axis twice, and returned to its positive amplitude once more, all within pi on the x axis. AKA, pi is the period.</p>
<p>Moral: Don’t assume 2pi is the period because its sinusoidal. It had a transformation in it. The equation would have looked something like y=cos2x (don’t recall the exact amplitude, so it might be off a bit). Since the period is equal to 2pi over x’s coefficient, 2pi/2=pi.</p>
<p>No more arguments on this, eh?</p>
<p>yeah seriously. all you do is look at the graph. a period occurs at the point when the function starts to repeat itself. it repeated every one-pi. the period is pi.</p>
<p>actually not that it matters but it was a sin graph with a horizontal shift, but this does not affect the period</p>
<p>You can’t really tell if it’s a sine or a cosine graph, because we don’t have the original equation. y=cosx and y=sin(x+pi) look exactly the same, as one is a cosine graph and one is sine shifted by half its period… Unless it said something to indicate sine or cosine in the question?</p>
<p>Well, the question stated that it was a sine graph but that didn’t really matter. I remember there was a huge paragraph before that graph, but I just looked at the picture and immediately knew the answer.</p>
<p>The control group is definitely L4, just because L3 had the least change doesn’t mean it was the control. If you looked at the beginning passage, it said that L1, L2, and L3 all had an allele (or something to that effect) added to them and L4 was the only one that didn’t, so that one was the control.</p>