Math Discussion For ACT December 2009

<p>I’m not. I was incredibly unsure of that question and had absolutely no time to actually “figure it out” so i had to guess.
DON’T take my word for it.</p>

<p>look closer :wink: i said without a discontinuity (we have the same answer)</p>

<p>However for the a=4 I’m 100% sure.</p>

<p>It probably was without a jump discontinuity. I had no time to really figure that question out because I had saved it for last because it required more than 3 seconds of thought to figure out how to solve it.
Damn it, so much for that perfect 36 to complement my 800 on the math SAT :'(</p>

<p>4 is correct. I simply looked and saw that the top equation was 1/2 the value of bottom equation.</p>

<p>oo lol</p>

<p>I am delusional right now. The science section killed me today so I can’t think clearly.</p>

<p>mabsjenbu123, i agree with you. The math, reading, and english were pretty easy. I have never seen a science portion this hard… I mean, althought they gave you the definitions of things such as threshold negativity, i believe it was, it was still hard. I hope the science curves are generous.</p>

<p>SA-07, where there any questions that required the word threshold negativity? I felt like the science question was a bit harder than my test last year, but it was still essentially reading graphs. I mean that word couldve been in there, but I dont read the tables or studies unless a question prompts me to.</p>

<p>What were the possible answers to the Square Root question that asked you to find all the rational numbers?</p>

<p>I’m seeing here that the answer is 10, but I dont remember seeing 10 so I remember picking 9.</p>

<p>@ 1stEdition: What I did for that math one is I got the square of all the numbers up to 10, so 1, 4, 9, 16, 25, 36, 49, 64, 81, 100. It asked for the probability of a rational number. So, it’s 10/100. Also, yeah, this science you had to read it to understand the stuff. I just am in shock of how hard it was. Like I tried the first few passages but I was running low on time. So, I had to rush. I hope I get a good score…</p>

<p>Hey guys what did u get for the one near the end that gave 4 x’s like and u had to choose which equation</p>

<p>1st edition: the possible roots one, the 2nd choice was 9/100. they tried to trick you to say 9, assuming some ppl would forget that radical 1 is rational. but the third choice was 10/100, which is the answer.</p>

<p>@viny: the problem asked “which of these equations has the roots -3, -2, i, -i” or something like that (i know it had ±i)
the correct answer was choice A
(x+3)(x+2)(xˆ2+1)=0</p>

<p>the important thing in this problem was the (xˆ2+1) argument because that gives you the ±i</p>

<p>the question with perpindicular lines answer was the one that had the sloped come out to be…</p>

<p>6/5 and -5/6</p>

<p>this is going to sound really dumb, but what was the answer to the question with 10 percent off of 15 percent off of 30 with 6 percent tax? I couldnt get a answer that matched the other mc answers</p>

<p>24.327, i just did it</p>

<p>^Dream Cornell’s answer is correct</p>

<p>did we reach a consensus on what the graph one was? i blindly guessed b.</p>

<p>behind<em>the</em>lens - #58, which was the graph one, was answer choice F. im 100% positive…i worked it out</p>

<p>Yeah it was F/A</p>