ACT June 2010 - Math

<p>definitely.</p>

<p>Lol. You mean exponential graph?</p>

<p>Semi hyperbolic would have been even more ingenious I think : )</p>

<p>Incorrect. It said specifically “AT LEAST one standard deviation over the mean”</p>

<p>It was 115</p>

<p>Can someone answer my previous question?
I really need to know! makes the difference between 34 and 35!</p>

<p>Is it a square root function? for #59</p>

<p>Nooooooooooo, it’s exponential wongtongtong lol srry. Look at it this way, as r increases, A increases by a factor of r^2 (area formula).</p>

<p>Well, technically it wasn’t exponential, but a Parabola. It looks just like x^2, with a vertical stretch of pi.</p>

<p>Yes, we know it is parabolic. The picture showed an exponential function though, no need to confuse people (it’s not like a circle can have a negative r anyways).</p>

<p>I thought r was on the x axis?</p>

<p>Actually forgot this, I dont know what the hell Im talking about. Anyway, whats -2? 34 or 35?</p>

<p>r = 1, </p>

<p>Yes, it was on the x axis. As r increases, Area (on the y-axis) increases with the square of r.</p>

<p>wow</p>

<p>you guys are smart!</p>

<p>I am dumb, I missed the question that said Sinx=5/13, what is Cosx=? (something like that) lol I was low on time and I just realized how to do it before time ended and didn’t have a chance to fill it in.</p>

<p>For the one with the inequality, is everyone sure the answer was a?
I followed the same reasoning, but I can almost guarantee that I filled in b.</p>

<p>What is -4-6 looking like? ugh.</p>

<p>@rock was is something like 12/5?</p>

<p>Well the denominator has to be the same because they’re both over hypotenuse. Whatever the denom of the given was you can just do pythagorean theorem to find the other side.</p>

<p>I think it’s -12/13</p>

<p>It was -12/13. I’m absolutely certain.</p>

<p>First of all, we know the triangle was a 5-12-13 combo. Secondly, it was plotted on a diagram. It was in the second quadrant, so the 12 would have been negative.</p>

<p>Big thing about the rhombus one:</p>

<p>The rectangle was a square. </p>

<p>:P</p>

<p>were there two correct answers J and K, all of the choices had +
does anyone remember?</p>

<p>Ah…does anybody remember the slope question? I think it had a fraction in its answer, but I can’t recall.</p>

<p>This just came to me! lol</p>

<p>what about the one question about quadrilateral that adds up to 86 or something? I think I put that it doesn’t provide enough info…</p>