<p>If I recall, that one was E. The slope on both the downward portion and the upward portion had to be steeper for A, and the minimum point for A had to be lower than the minimum for B. E had these features.</p>
<ol>
<li>Ratio was 3:5:8. Multiply everything by 10.</li>
</ol>
<p>^wings is right–> 30.</p>
<p>^What? Where you gettin that from? It was a simple proportion problem.</p>
<p>I believe the slope had to be more shallow. Wasn’t it decreased more slowly and increased more slowly?</p>
<p>It was 80 cups of punch, not 80 cups of water.</p>
<p>It was a simple proportion problem. 3/5=x/80. Solve for x. X is 48. How the hell did you get the ratio for 3:5:8? Where does the 8 come from? There was no mention of an 8 in the problem.</p>
<p>^ definitely 30. </p>
<p>3 cups (juice) + 5 cups (water)= 8 cups (punch)
thus,
30 cups (juice) + 50 cups (water)= 80 cups (punch).</p>
<p>Your proportion is wrong, yale. you are comparing juice to water = juice to TOTAL.</p>
<p>^oh my god. ****. I read it wrong. Wow~!!!</p>
<p>
</p>
<p>i believe it was 3/8, not 3/5.</p>
<p>3 cups of concentrate and 5 cups of water gets you 8 cups of punch. Your proportion should be 3/8=x/80</p>
<p>I put 30 for the punch question. 3 cups of juice + 5 cups of water = 8 cups of punch. Thus 30 cups of juice + 50 cups of water = 80 cups of punch. Unless I read it wrong or had a flaw in my logic, I believe that 30 is the correct answer.</p>
<p>P.S. Sad day, I missed the trig identity question. (#58 or so.)</p>
<p>ohhh i thought it was 3 cups of juice and 5 cups of water make 1 cup of punch…</p>
<p>thinking of it i dont know how ■■■■■■■■ i was…</p>
<p>^I looked at that and was like “***,” skipped it, went back, and was like “oh this is easy. Divide by cos, sine/cosine=tan”</p>
<p>I believe it was D, tan>1/2</p>
<p>Okay okay i get it. Sheesh. One person posted the explanation. I conceded to my error. And right after, three more people posted the same **** again. I get your point. lol</p>
<p>I nearly had a cow when I saw this one, because I was thinking that it was some kind of trig identity that I didn’t know, but yeah, it was a simple definition. It took me a minute to realize it.</p>
<p>Chill out. I tried to clarify what I stated earlier because I didn’t see your post. I was waiting out part of my one minute for making posts too quickly. I’m sure the same thing happened to the others, too.</p>
<p>Has there been discussion of the parabola item? I cannot recall having seen such a problem on any of the published tests. I could not recall exactly the general formula, but it makes sense that it is (y-k)=a(x-h)^2. I did a t-table to buttress my confidence. Any thoughts?</p>
<p>I think -0 so far…soo happy. Especially because my prick physics teacher cleared our calculators and I had tons of programs (like midpoint, distance, etc.) and I almost forgot the formulas lol.</p>
<p>The pressure one was definitely E, btw.</p>
<p>^I put it in my calculator and found the vertex. if that’s what you’re talking about</p>