<p>I used a formula for that and it came out to 5/2, not 2.25...</p>
<p>t1/ (1-r) ? I don't remember the problem much, but I got 5/2...</p>
<p>Remember you cant include the 2 (1st term) in that formula because it doesnt fit the geometric ratio.</p>
<p>AAH. Maybe I should cancel.</p>
<p>no, this test was harder than all the released collegeboard practice math 2 practice tests imo.</p>
<p>Yeah, I breezed through the studyguide and skipped a lot here. Maybe I just suck at math. But why can I do calculus and not this? Makes little sense to me. Ugh, maybe the material was from too long ago. Should have studied more.</p>
<p>I even went back and made sure I knew law of sines/cosine for this test, since Im in BC calc, and I couldnt get 2 of the problems that used them. Guh.</p>
<p>i'm in calc ab and i get perfects on all the tests...but this is totally different.</p>
<p>haha i definitely started to use calculus with the revolving the triangle one. the i realized i could just use the formula for the cone.</p>
<p>that was 1500pi.</p>
<p>I flunked barron's though. I got like <700 in barron's. It was really sad. Kind of explains why I didn't do too well this time. :(</p>
<p>I got a cone too... I just don't remember the answer anymore xD</p>
<p>You guys remember the A squared > B squared roman numeral?</p>
<p>I think it was just a squared - b squared > 0, not ab squared > 0 or a > b because of negative numbers, right?</p>
<p>I got 1500pi for that cone/triangle</p>
<p>i just got a^2-b^2 > 0 for that one. the other two were wrong due to negative #s</p>
<p>I agree with 1500pi, 2.25, and 113.</p>
<p>Is any one sure about whether the 113 dispute question is actually even or all positive integers?</p>
<p>not really. all my friends say it was even #s only.</p>
<p>Mike, that one was I only (A) I remember.</p>
<p>Was the limit one = 1? I just did it in my calculator, but I want to double check.</p>
<p>Im pretty sure that was 1. I plugged in big numbers into the table with the equation.</p>
<p>How about the f(x+2), the new y intercept? It just shifts the graph 2 left, and it was 4, I think, right?</p>
<p>yepp i used calculus on that one too. limit as x approaches infinity. cause the 3^-x becomes zero leaving the 1. i think.</p>
<p>limit is 1. ti-89 :)</p>