June SAT Math II Thread

<p>james: are you sure that it was 30? did you like actually paid attention to the wording? or did you just thought it meant to be 30 ?</p>

<p>I’m positive and about 15 other people in this chat confirmed… you can look through the first 48 pages, but I’ll just save you some time b/c it was 30</p>

<p>yeah i know ppl have talked about that for some time, but no one was like positive about the wording</p>

<p>no it was n^k/180
I remeber that… so it was like (30)^2/180 = 5</p>

<p>Besides, if you were unsure about the wording like I was…</p>

<p>180/n^k would have >1 answer</p>

<p>For example, 180/(6)^2 = 5. 180/(36)^1 = 5. 180/(30)^1 = 6. 180/(9)^1 = 20. Only one option, 30, had a power that 180 went into. 30^2/180 = 5.</p>

<p>what was the answer to that one that gave y=x^2.6 and then what is log y</p>

<ol>
<li>123</li>
<li>Parallel of y=mx+b –> y=mx+2b</li>
<li>Standard deviation goes up five.</li>
<li>2 is a prime number</li>
<li>Quadratic regression –> 4.9</li>
<li>599.7</li>
<li>Function to the power of -2x –> One x intercept</li>
<li>Similiar triangles trig –> tany</li>
<li>y=x^2.6, what is log y? –> Don’t know, left it blank.</li>
<li>f(x)…g(x)(x-2) –> f(2)</li>
<li>Length of chord –> 15.3</li>
<li>Distane between trucks –>60</li>
<li>tanx=k/2, what is sinx? –> ommited, don’t know</li>
<li>One root is twice the other –> 16</li>
<li>Area of rectangle under sin curve –> 1.1</li>
<li>Sequence/ odd terms = remainder –> 19th term</li>
<li>Bacteria growth question –> 26 hours</li>
<li>y=(x-a)(x-b)(x-c) –> graph with three distinct intercepts (E)</li>
<li>18 divides n^k –> 30</li>
<li>Which is true for 0<x<pi 2=“” --=“”> II and III</x<pi></li>
<li>ln(sin(x))=0, ln(x) –>.45</li>
<li>Indiana/Lake County –> .27</li>
<li>Maximum value of some function–> 750</li>
<li>(tan(x))^2+(sec(x))^2 –> 1</li>
<li>Reflection over y axis –> f(x)=f(-x)</li>
<li>Find q given a midpoint –> (-2,1)</li>
<li>zeros of sqrt(3) and -(sqrt(2)) –> -.32</li>
<li>Cylinder with volume of 12500 –> radius=40</li>
<li>Triangle area increase –> 9 times bigger</li>
<li>Some equation –> 0 and 2/3</li>
<li>Planes and lines –> I and III</li>
<li>smallest integer n that divides n/2 n/3 n/5 n/9 –> 2<em>5</em>9</li>
<li>Which is not true about y=2+3sin(2x)+3 –> Period is pi/2</li>
<li>Simple geometric sequence –> first term is y^2</li>
<li>Given (x-y)^2 = 4, what is 3(x-y)? –>6</li>
<li>Graph with a zero @ 2 is migrated up 2. What is the new x intercept? –> I believe it was 4?
all I can remember</li>
</ol>

<p>so far one wrong, 800?</p>

<p>I thought lake county was .32</p>

<p>can anyone explain that length of chord one?</p>

<p>You used law of cosines to get the sides and then law of sines to find the chord, is wha t people are saying. (it was the one that i skipped.)</p>

<p>i skipped too, u need 2 sides and one angel for law of cosine, but i didnt find enough info for that
onyl thing i remember is that the diameter is 18, and an angle, and there were nothing else…</p>

<p>Log y = log x ^ 2.6. Because of the law of logs, this equals (2.6)(log x). That’s your answer.</p>

<p>can anyone else explain the length of the chord one?</p>

<p>stevenydc,</p>

<p>They gave you an angle on the diameter. I think it was 63 degrees. You would do 180-63 to find the angle between the two radii. Then you use the law of cosines to find the length of the chord.</p>

<p>Can anyone confirm that the one with a graph with a zero at 2 that was migrated up 2, had a new x intercept at 4?</p>

<p>clark, wasn’t the second question which line is perpendicular? so wouldn’t it by -x/m + b?</p>

<p>Or did I misread it? Someone else please confirm.</p>

<p>Oh, and the graph was shifted to the left 2 so the zero was 0, it wasn’t shifted up 2.</p>

<p>omg youa re right lol…some how i thought that those two radius are not the same…gonna retake it i guess…</p>

<p>Nearly postive it was parallel; might shoot myself if it was perpendicular.</p>

<p>I used law of sines on the chord one because you had all of the angles (it was an isos. triangle b/c of radii) and two sides (2 radii).</p>