<p>Yeah if its 0,400 then the answer is definitely 24. At x=21 you would have around 8000. That’s under 10,000. The Exponential Regression formula is 366.362(1.158)^x</p>
<p>crap…i got 21 weeks, but thats not the issue atm lol. ommitted 6 and already got 2 wrong. time to cancel :/</p>
<p>its def 24 if u used your calculators model regression</p>
<p>Wow I guess i got it wrong hten, sorry if i mislead anyone.</p>
<p>Didn’t the box plot one say how many of the students got between 70-90? I put 20%… Cuz on top of that there were 5 scores only one was in the box 70-90</p>
<p>Ok well it’s kind of ambiguous whether its (0,400) or (1,400). At time 0, shouldn’t the number sold be 0? I think on the test I used (1,400)</p>
<p>With the points (0,400),(5,850),and (10,1520) the Exponential Regression Formula would be
f(x)=411.6698(1.14282)^x ---------- so f(21)=6790 (UNDER 10,000)</p>
<p>With points (1,400),(5,850),and (10,1520) The ExpReg Formula is
f(x)=366.362(1.15837)^x --------------- so f(21)=8021 (STILL UNDER 10,000)</p>
<p>For BOTH formulas, 24 is over 10,000. So either way, the answer has to be 24.</p>
<p>Yeah, I see what you mean. Now I’m sad.</p>
<p>The curve is super lenient so don’t be sad, there’s still hope!</p>
<p>^ Are there any more questions that you might remember?</p>
<p>whats the answer to the triangles question near the end. the 3:2 ratio crap</p>
<p>Let’s say I got ten wrong (I hope not). What score would it be? 700? What’s a general curve for this test? I know it’s generous, but I don’t know the specifics .</p>
<p>like a 750 right? ^</p>
<p>I couldn’t figure out the similar triangles one. I felt so stupid because it seemed so simple. I circled 4.7 but I erased it. I’m pretty sure that’s the answer too. A friend of mine said he used the law of sines to get it. </p>
<p>The committee one was definitely 840.
(6 nCr 2)(8 nCr 3) = 840</p>
<p>^ I agree, I omitted the similar triangles one. Seems so simple but I didn’t know for some reason.</p>
<p>to answer humanities2014’s question: 10 wrong with 40 right is roughly a 730-740.</p>
<p>for the systems of equation one with like X^2-y^2= and another equation, what did everyone get??</p>
<p>It is 24 by the way for the exponential problem. I got 21 weeks, too. But it said minimum of 10,000, which means 21 is not just sufficient enough to get 10,000. So the answer choice would be 24, the second lowest.</p>
<p>i had to solve that problem for around5 min… waste of time. but yea i think i got B=4.7?</p>
<p>for the similar one, i found a side of the 2nd triangle and then applied the sine law…</p>
<p>that one was -6</p>
<p>i’m pretty sure i got 4.7 for the 3:2 triangles</p>