<p>I live in a small town 3 hours away from Dallas.</p>
<p>^ Sorry quicks, I know I missed some of your questions..let me know which added a few more</p>
<p>Here is a consolidated list of the thread</p>
<p>Note: * denotes "DISPUTED" or unsolved/disputed throughout the thread. Bolded in disputed answer means the more supported answer of the two.
? denotes "w/o support", not discussed at length and was supported by only 1 person</p>
<p>IN NO PARTICULAR ORDER:</p>
<p>arithmetic series of third term & seventh term, 6th term 23, 2nd term 7: 11 (D)</p>
<p>there was something with 3 is a factor of x^3+18x^2+11x+c or something and you had to find c. The answer was -21</p>
<p>Log(base10)sqrt(x) = a. What is log(base10)x^2: answer = 4a (plug in check)</p>
<p>x^2+2x+4=(x+2)^2+a(x+2)+b,find a: answer: -2</p>
<p>?f(f(x)) = -x</p>
<p>? ln (4) = ?</p>
<p>? Donuts problem: as the dollar amount,p, increased, d decreased by -26.97</p>
<p>Babysitting: (32.5-2x)/3.5</p>
<p>? 2x+4 or something like that for -1000 function question: ?</p>
<p>ladder prob 70 to 80 answer: 6.8</p>
<p>what is g(x) graph in terms of f(x): |f(-x)|</p>
<p>Ratio of sphere w/ r and sphere w/ 2r: 1:8</p>
<p>Sum of zeros, find recip 1/x + 1/y: answer: 0.5 (1/2)</p>
<p>f(1) = -2, f(-1) = 3, find f(4): answer eq y=-2.75x -0.25: answer 11.25 (-?)</p>
<p>Polar equation graph with circle and angle 3rd quadrant, eq of circle x^2+y^2 =5: 206.6</p>
<p>n! divisible by 9 if and only if n >- 6 (greater or equal t</p>
<p>*(x^2-25/x^2-5x) undefined at x value: x=5,0 </p>
<p>equilat triangle P=6: 1, -rt 3</p>
<p>y>2x^2-1: (1,2)</p>
<p>Period of |sin x|: answer pi (see thread for details)</p>
<p>csc x & tan x problem in pi/2 <theta< pi = -.57</p>
<p>Max on [-2,4] of function: -2</p>
<p>Donuts prob: d=-24.37p+273.
For every $1 increase in p, d decreases by 24.37.</p>
<p>Sum of positive integers 1+2+3+4...225: 113 (November 2008 SAT Subject Test: Math Level 2)</p>
<p>cos f(x) = sin x: pi/2 - theta (cofunc ident)</p>
<p>*Rotation around XY of tri to cone: 1500 pi or 2000 pi</p>
<p>Sum of inf geometric sequence 1/(5)^x = 2.25 (2 1/4 on test)</p>
<p>f(x+2) graph shift left: y-inter (0,4)</p>
<p>? Similiar triangles sin A/sin B : 3 or 6</p>
<p>profits margin function: 10y-35-7.5x>0</p>
<p>*Boxplot graph, I - greater means A>b, II - standard dev, III - range: either I only or I & III</p>
<p>(x-3)^2 + y^2 =11. (x+2)^2 + y^2 = r^2.: answer: 1.68 rounds to 1.7</p>
<p>find NON-NEG productive of zeros: answer: Non Negative product of zeros is x(x+6) b/c 0 times -6 is 0, which is a Non Negative number.</p>
<p>probability question about numbers whose sum is 10 and product is 20: 1/2 (ab=20 and a+b)</p>
<p>3^x + 1 as lim of x approaches infinity: 1</p>
<p>? lim as x approaches infinities for func of 3x^2/?: ?</p>
<ol>
<li><p>Probability -1<x<1: pi/4</p></li>
<li><p>Parallelogram question: 53</p></li>
</ol>
<p>edit: added one more profits margin function/ladder</p>
<p>Awesome lolilaughed!</p>
<p>^ I'm still thinking it's I & III for the boxplot. Any other opinions? </p>
<p>I correct 0,5 prob btw.</p>
<p>Oh btw, you have the donuts question in there twice.</p>
<p>I put I only for that one... but that was a guess. I don't remember all too well how the box-and-whiskers plots work. III said range of A < B right? Wasn't the box for A longer?</p>
<p>@ Quicks thanks for correction...</p>
<p>No, Phishy, 3 was DEFINITELY correct. How'd you score on the Math II?</p>
<p>No, III was definitely correct.</p>
<p>:| can't edit.</p>
<p>Does anybody remember the 3D problem with the points?</p>
<p>what did III exactly say?</p>
<p>the one where you find the diagonal? man, i don't remember the xyz coordinates, but i think i figured it out during the test. if i see the choices, i think i could recognize my answer.</p>
<p>ah, well, I won't argue on that one because I honestly don't know.
lol my Math II was all right the first time and horrible the second, so I'm hoping to make up for that this round.</p>
<p>I remember it! ... Don't remember the answer though. It asked to find the diagonal of the RECTANGULAR SOLID not cube sorry.</p>
<p>not the cube. they had different measures.
but yeah (x,y,z)</p>
<p>answer: d^2=x^2+y^2+z^2</p>
<p>does anyone know what
III said for the boxplot problem?</p>
<p>Yeah, I agree with johnny; it was a rectangle in (x,y,z). You basically just use the Super Pythagoreom Therom as PR would call it.</p>
<p>I got the answer to the infinite geometric series as something .5.</p>
<p>The formula is a/(1-r) where a is the first term of the series and r is the ratio.
I don't remember how the sequence went though, so I can't really show the algebra. :(</p>
<p>^ What was the answer to the diagonal of the cubey?</p>
<p>Umm, I think it was sqrt(77), which is about 8.77</p>
<p>'Kay, the infinite sequence probably went something like this:</p>
<p>2, 2/5, 2/25, etc.</p>
<p>a=2
r=1/5</p>
<p>a/(1-r)
=2/(1-1/5)
=2/(4/5)
=10/4
=5/2
=2.5</p>
<p>wow what a long thread!
i've had a big day today! off to bed!
goodnight everyone! :) :)</p>
<p>p.s.
best of luck to everyone of you!!</p>
<p>^ wrong, it was 1/(5^n)
so its 2.25 or 2 and 1/4</p>