January 2011 - Math Level 2

<p>A Few Answers:</p>

<ol>
<li>x=.5 and angles are 35 degrees and 42 degrees: 1.57462</li>
<li>Cost of photograph question (can’t be too careful): f(5) + g(other number)</li>
<li>|x-4|</li>
<li>11/29</li>
<li>2.5</li>
<li>x^2 - 9x + 14 (i think)</li>
<li>34.11 (diagonal of Rhombus. I’m very unsure about this one because I forgot which diagonal it is supposed to be)</li>
<li>Eight teams (7+6+5+4+3+2+1=28) (Also unsure of this because I forgot if teams were supposed to be playing against each other more than once).</li>
<li>f(x)-1</li>
<li>-1<y<3 </li>
<li>y=1 (Matrix Question)</li>
<li>8.246 for the altitude of the triangle (((side/2)^2 + (height)^2)^(1/2))</li>
<li>x^3 for the increasing function one f(b)>f(a) and b>a</li>
<li>function shifts to the right and intersects the origin</li>
<li>sec^2(x)</li>
</ol>

<p>And that’s about it for now. Please challenge anything you think is wrong.</p>

<p>uuuh yeah i think it is x^2 + y^2 < 13. you’re right. now i’m not sure what i put either…because i remember even plugging in numbers and checking and it was right. ahh my head hurts</p>

<p>yes it should be 13 not root 13…btw, what did u get for the question about the ball in the sky defined by a function (one of the last ones). it was like how many seconds after the ball reaches its max height will it be 20 ft high? was it 1 second? And what was ur answer for the polar coordinates question? (not just the letter but the actual answer)</p>

<p>for 9 it was g(x) + 1 i think…</p>

<p>yup, but plz answer my questions two posts above?</p>

<p>i put one second but i omitted the polar one cause im stupid and didn’t see that question wahh :(</p>

<p>Actual answer was (1, and then something here where both cosx and sinx were negative).</p>

<p>Apu, I think for 2., F(5) + G(20), not sure.</p>

<p>Can you remind me of question 4 and 5?</p>

<p>8 teams is right dude, don’t worry about it :P</p>

<p>Do you guys remember one where the period of a function is given, and they ask when the function will be zero? I think I put 100 but I really didn’t even think about it, I don’t even remember the graph, so I’m quite unsure about this one.</p>

<p>As for question 50, I was just about to answer but the proctor said to put the pencils down. Just graph the function ;)</p>

<p>Lol, my bad. It was g(x) + 1. </p>

<ol>
<li>x=.5 and angles are 35 degrees and 42 degrees: 1.57462</li>
<li>Cost of photograph question (can’t be too careful): f(5) + g(other number)</li>
<li>|x-4|</li>
<li>11/29</li>
<li>2.5</li>
<li>x^2 - 9x + 14 (i think)</li>
<li>34.11 (diagonal of Rhombus. I’m very unsure about this one because I forgot which diagonal it is supposed to be)</li>
<li>Eight teams (7+6+5+4+3+2+1=28) (Also unsure of this because I forgot if teams were supposed to be playing against each other more than once).</li>
<li>g(x)+1</li>
<li>-1<y<3 </li>
<li>y=1 (Matrix Question)</li>
<li>8.246 for the altitude of the triangle (((side/2)^2 + (height)^2)^(1/2))</li>
<li>x^3 for the increasing function one f(b)>f(a) and b>a</li>
<li>function shifts to the right and intersects the origin</li>
<li>sec^2(x)</li>
</ol>

<p>austraboy… i don’t even remember that one uh oh</p>

<p>i put 1 as the answer to the periodic question and im pretty sure about it…</p>

<p>wait are you talking about the same question i’m talking about? if so, then good i put that too</p>

<p>For 4 & 5:</p>

<ol>
<li>Random Graph</li>
<li>x/2y-x = 10. y/2x-y=?</li>
</ol>

<p>If the period one was the weird graph that looked like the nose of some cone, i think the period was 7, meaning f(100) = f(100%7) = f(2). I think f(2)=1, f(0)=some value, and f(1) = 1 as well.</p>

<p>it was like f(100 or something ) = 1, when given a graph of a graph with period 7ish…</p>

<p>okay there was one about medicine dosage…was the answer something like 18.2? i think it was B. and also, there was another question about money and percentage…i think i put 3.325% or something like that</p>

<p>I remember putting both of those answers (18.2 and 3.325).</p>

<p>3.73% was correct</p>

<p>YAYYYYY :smiley: dude i cant wait till scores come out…</p>

<p>I got 1 also for the period. I remember getting a or .5 for the last one and x^2-9x+10…
How were u supposed to do b>a problem?</p>

<p>I seem to have forgotten the period question completely then. If I recall properly, it asked to find the value of the function at x=100? I totally forgot now, I just thought that at x=100, the function would be equal to 0, since it has a period of like 6, and at x=10 it was 0. This is just from what I remember - I’m probably just being delusional :P</p>

<p>Was there only one percentage for that problem <4 and >3? I think there was 3%, (some number )%, and then 4.something %.</p>