<p>yeah -4.85.</p>
<p>AIM Chat, private message me for invite.</p>
<p>What’s the answer for the center of ellipse problem?</p>
<p>READ THE THREAD GUYS</p>
<p>The e^x + x + k thing has already been answered.</p>
<p>The center of the hyperbola has already been answered.</p>
<p>-2,5 for sure</p>
<p>do they reuse some of the may questions for the june test?</p>
<p>i doubt they ever reuse a question verbatim…they might have very similar ones with different values</p>
<p>aww man, i think i put (2,-5)</p>
<p>As for the last question about standard deviation, I took Stats, but…I’m not too sure either. I used Z = (X - mean) / SD …
X = 84 Mean = 74 SD = 2
So that would make Z = (84-74) / 2 = 5
A Z score of 5 would be above 99th percentile, wouldn’t it? Because a normal curve graph has only a max Z-score of 3 (at 99th percentile)</p>
<p>Correct me if I’m wrong</p>
<p>yes, a z score of 5 would be above .9999</p>
<p>you have to know z scores for math 2? i know them from stats, but im suprised thats on there</p>
<p>i even didn’t bother to look at the last question, nvr hear of deviation</p>
<p>i had to pull standard deviation from way out of the back of my head from AP stat last year. i’m surprised i even remembered.</p>
<p>Anyone get secant 47 as the answer to which one was the biggest
other choices were like cos 47 tan 47</p>
<p>yeah that was the answer banker</p>
<p>The PR review book for this was just as useless as their AP Calc book.</p>
<p>^ Not true. PR has some good questions!! It just didn’t come up on this particular test.</p>
<p>My third time taking this time. If I don’t get a 800 this time I’d be really really mad.</p>
<p>idk I just glanced through the PR book and realized that I still remembered all the stuff so I spent my time studying for chem and physics.</p>
<p>the only question i was unsure of was the parabola intersecting the x-axis:</p>
<p>y = x^2 + k</p>
<p>For what values of k would the parabola intersect the x-axis?</p>
<p>I. k < 0
II. k <= 0
III. k > 0</p>
<p>a. I
b. I and II
…(etc.)</p>
<p>I chose the answer that had I and II, but I wasnt sure if x^2 was considered “intersecting” cuz it only touches, doesn’t cross. I couldnt remember the precise definition of intersect. Can someone help me?</p>
<p>I don’t remember that being a Roman numeral question? I think it is k<=0 because touching would mean it is a root of the equation and that means it intersects I think?</p>