June SAT Math II Thread

<p>@azen it was ln(sinx)=0 and it asked for ln(x). i think the answer was .45<br>
you do e^0=sinx and get sinx=1 wher x is in radians (pie/2). So ln(pie/2) is .45</p>

<p>SccrScrub01. I did the same thing as you.</p>

<p>@SccrScrub01: oh, okay. so why do people say it’s undefined again?</p>

<p>not sure…does anyone remember what they did for the bacteria one?</p>

<p>I got 26 as well for the bacteria one. I’m pretty sure I can show the steps to my solution if presented with the problem again.</p>

<p>it was an initial population of 1 and they wanted to know how much time until the population was 5 million. and i think they gave the equation 2^n so n was 26</p>

<p>^ yeah 26.</p>

<p>thanks i remember what i did now…i got it!!! thanks.</p>

<p>does xx.25 round up to xx+1?</p>

<p>for example will 43.25 go to 44 = 800?</p>

<p>Is anybody working on a consolidated list?</p>

<p>ughh sorry, cant remember, I just remember my way was really convoluted and most likely different from anyone else’s…</p>

<p>no it doesnt…so do we have a consensus on the last question and the cosx>cos2x one?</p>

<p>(x-a)(x-b)(x-c) is the graph with 3 y intercepts, i think the last one (E)</p>

<p>On the bacteria question, was the initial info. (about 1.17 growth rate) irrelevent?</p>

<p><em>ignore this post!</em></p>

<p>Just a reminder. You are not supposed to discuss SAT questions, so…don’t risk your scores</p>

<p>@krazy…it was the one with 3 x intercepts and the graph entered in the 3rd quadrant and exited in the 1st quadrant.</p>

<p>the answer was the only graph that hit the x axis 3 times.</p>

<p>Also, WHY are people saying that theres a restriction in lnsinx=0?</p>

<p>because there was. it was 0<x<pi</p>

<p>that is what I’m wondering too.^^</p>