<p>wat do u mean -1</p>
<p>what was the cube inscribed in a sphere?</p>
<p>-3/2 + 1/2 = -2/2 = -1</p>
<p>cube’s diagonal is s<em>rt(3), but that is a diameter of the sphere, so divide it by two and you have the answer: s</em>rt(3)/2</p>
<p>argh i was thinking of circle, so i put s*rt(2)/2</p>
<p>no diablo, but i played warcraft 3, about 2 years ago and i got the name noseferatu from a character on a custom map haha</p>
<p>u want me to make a chat on aim to make posting easier?</p>
<p>yea AIM will be better</p>
<p>“lmao haha, yeah i skipped 3 and got 2 wrong, but i think the curve will be 43 or lower, i am positive it will not be 45” - Noseferatu </p>
<p>hmm…hypocrite.</p>
<p>Does his math ability determine the difficultly of the curve? lol My 100th post!</p>
<p>this math test sucked. Why was it so hard, the one from the 22 real book was so much easier</p>
<p>“for g(x) = f(x -1), I chose the graph that shifts f(x) one unit to the right”</p>
<p>I said the one that shifted to the left, because the graph was of f(x-1), so it was already shifted to the right, which means before it was to the left … was the graph of f(x) or f(x-1)?</p>
<p>I thought it was on target with the practices I’ve taken, but harder than this 2001 Peterson’s book I bought at a tag sale for $3.00.</p>
<p>answers for cone problem & circle w/ 2 angle theta’s?</p>
<p>People are saying the cone problem was E but I don’t think there has been a true explaniation yet, I think it’s just known it’s D or E.</p>
<p>yea i narrowed that down but couldnt choose</p>
<p>What was the prime number question?</p>
<p>OK I’l explain why I got E.</p>
<p>You know the volume of the new cone is half.
So: 1/2(1/3pi(3^2)6)=1/3pi(r^2)h
This is where I was confused for a while: does height go up proportionally with radius or base (radius^2)? Since the latter wasn’t giving me answers, I decided on the first. So you say:
1/2(1/3pi(3^2)6) = 1/3pi ((h/2)^2)*h, and solved for h.</p>
<p>Do you think this makes sense?</p>
<p>This is what I did for the cone:</p>
<p>Large Cone:
V = 1/3 * pi * r^2 * h
V = 18*pi</p>
<p>Small Cone:
V = 2/3 * pi * r^2 * h
18*pi = 2/3 * pi * r^2 * h
27 = r^2 * h</p>
<p>I made the following assumption (this is what my answer depends on): r varies directly as h in a cone.</p>
<p>Thus, if h(small) = 4.8:
h(small) is 80% of h(large)
so
r(small) is 80% of r(large)</p>
<p>3*.8=2.4
2.4^2 = 5.76</p>
<p>Does 27 = 5.76 * 4.8? Not quite: 5.76 * 4.8 is about 27.648. However, that’s the closest of any of them to 27. Also, based on the slight deviation, I’m willing to bet that r and h vary almost directly, but with a slight scaling factor thrown in.</p>
<p>Thus 50 = (E), or 4.8.</p>
<p>yeah, would someone care to explain the prime number question?</p>
<p>What is the actual question, though? I don’t seem to remember it.</p>