Math for March SAT 2009

<p>Wait, you guys in the beginning…you thought the arc one was hard? O_O</p>

<p>And you guys thought the f(16) one was hard? I actually laughed when I read that.</p>

<p>so are you saying you got 10% for the citrus graph? That’s what I got.</p>

<p>I got 10%.</p>

<p>Monoclide, you have to step back and take a deep breath. Then tackle it while you it’s startled with your calculator.</p>

<p>btw, ans should be 10%</p>

<p>If they don’t omit it, they’ll probably just make -1 = 800. Which is pretty much the same as omitting it.</p>

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<p>Oh, no. Math was really easy for me. I was talking about the CR in that post. It’s seriously… ridiculous.</p>

<p>I really really really hated today’s Math! All of the questions that were so poorly designed took away from the time I needed to check the rest of my answers x_x I can’t believe some of the questions I got wrong…</p>

<p>I got 10%. I think it’s safe to assume that the graphs were each at the half-mark of 250, otherwise their would be too much uncertainty in reading it.</p>

<p>How ab. the problem with 60 kids in Math and 14 kids in Sci. overlapping…let’s hear from all of u …</p>

<p>yeah i believe the math questions were pretty poorly designed…the wording was ■■■■■■■■. Like i can understand tricky problems… where if it’s a quadratic you pick the positive/negative answer or any other problems where you have to change the signs or take note of special right triangles. But some of the problems really were really questionably worded…</p>

<p>The one with a and b, why is there any discrepancy? Aren’t they equal?</p>

<p>a=3x + 7
b-7=3x
b=7+3x</p>

<p>a=b?</p>

<p>citrus graph q = 10%</p>

<p>bob dylan, it is a=b</p>

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<p>If you plug them in, you get a totally different equation.</p>

<p>However, if you throw in a random variable - then you get a=b. (I got the latter.)</p>

<p>2sodas1icecream</p>

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<p>Actually, it’d be even better than omitting it - it would help those who got that one right but others wrong. Doubt they’ll do that though…</p>

<p>Wait, so have we agreed a=b?</p>

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<p>Yes. :slight_smile: </p>

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<p>True. </p>

<p>They’ll probably just give a ******** excuse and push everyone closer to the ACTs. Which is what they’ve been doing for a while now.</p>

<p>does anyone remember the exact wording of the rope problem? I know you guys think the answer is 4, but for some reason I remember putting 1… was 1 an option?</p>

<p>for the 40/3 one, I am positive that is incorrect. it should be 11.4 or something. the area is not directly proportional to a length. you have to take the square root before you set up the proportion. so:</p>

<p>root (4/3) = x/10
= 2/(root3) = x/10
= 20/root3
= 11.4</p>

<p>I know the f(ab) one is 24, and I understand why, but can someone please explain to me how if f(ab) = f(a) + f(b), how can f(4) possible equal 12? that would be impossible. no two factors of 4 can ever equal 12. I understand why the answer is 24 but I was hung over on the implausibility of the statement.</p>

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<p>It was four.</p>

<p>4x + 1x = 60.
You get 12.</p>

<p>And then you need to do 2x + 1x = 12.
That turns out to be 4.</p>

<p>For the citrus question I used 8250 and 7250 and got 10%. I am hoping it is right.</p>

<p>Never give up, your logic is flawed.</p>

<p>(1/2bh) / (1/2bh) = 3/4</p>

<p>Make base equal to one, they share a base. h of the first one =10, that was given.</p>

<p>(10)/(h) = (3/4)
h= 40/3</p>