<p>Start this off with everyone who took it, how was it? What did you get for the last problem?</p>
<p>Not to bad.. what was the last problem? I cant remember..</p>
<p>not bad at all, lol cant remember the last problem either.</p>
<p>lol. i took the math 2 first, got freaked out (it was impossibly hard), and ended up taking this test third.</p>
<p>it was SOOOO much easier than math 2. what was the answer to 44? i don't remember the question...</p>
<h1>44 was the one with the circle and making triangles using the diameter that had the same area as the given one. The answer was 3(C). It asked for how many you could make other then the original one given. Also, am I allowed to post all of my answers so I can check with other people?</h1>
<p>Edit - the last one was with the polygon inside the circle. It had a I, II, III thing. I know II was the polygon had the circle center in it, and III was it was symmetrical along the diameter, both of which were wrong, making I(A) the only right answer.</p>
<p>damn. how could the center not be in the polygon</p>
<p>i'll try to answer any ques you have, jeff and anyone else</p>
<p><a href="http://img71.echo.cx/my.php?image=circle3oh.png%5B/url%5D">http://img71.echo.cx/my.php?image=circle3oh.png</a>
It doesn't have to be symmetrical though</p>
<p>what about the one that was like</p>
<p>f(x)=4.31x^2+kx+2.5
it said the value of k made it a nonreal answer and what you had to do to make it have two real roots?
i got it down to two choices but couldn't figure it out completely...</p>
<p>the f(x) one was decrease by 15 and the last one was none of them it doesn't have to be a regular polygon, it doesn't have to have the center in it, and it doesn't have to symetrical to the diameter</p>
<p>darn, i said increase by 13... :(</p>
<p>yea i thought it was ok, pretty easy</p>
<p>how did u get decrease by 15?</p>
<p>first start with the formula
B^2-4AC < 0</p>
<p>I got that</p>
<p>then sub in</p>
<p>K^2-(4)(4.31)(2.5) <0</p>
<p>K^2-43.1<0</p>
<p>K^2<43.1</p>
<p>k<6.57</p>
<p>k>-6.57</p>
<p>-6.57 -15 going to create rational roots</p>
<p>6.57-15 going to creat rational roots</p>
<p>...adding 13 to either creates rational roots too, though</p>
<p>btw increase by 13 is wrong </p>
<p>-6.57 + 13 = 6.43</p>
<p>6.43 is not bigger than 6.57 thus its not going to create rational roots</p>
<p>at first i thought it was increase by 13 too but it just doesn't work</p>
<p>what is the curve for this test?</p>