<p>If I could suggest starting some sort of answer key? I’m not sure how things work here but I think it would be easier than slogging through 15 pages.</p>
<p>The cone and sphere question. For some reason, by math never worked. I got the radius of the sphere to be 7.5, but that was apparently wrong. HELP me?</p>
<p>YES, 8.4! I remember putting that down. Awesome possum.</p>
<p>the period was 2pi because of the absolute value. read the thread, i think its been said like 5 times.</p>
<p>I thought the period is equal to 2pie/b?</p>
<p>jason, i think i got it and my radius was like 6.something…i think…</p>
<p>I also got 2pi, but I wasn’t too sure on that.</p>
<p>why did my math not work!!!</p>
<p>Sphere: 4/3pir^3 = 1000 right? They gave us the formula</p>
<p>It’s difficult to see where you went wrong if we can’t see everything that you did…</p>
<p>They asked for the height of the cone, i’m pretty sure.</p>
<p>It’s 2pi. It’s pretty much been settled.</p>
<p>yes…did u take the cubed root? i got 6.2 for r</p>
<p>Kind of a off topic, but did anyone find this test harder than the practice exams in the collegeboard practice book?</p>
<p>6.2 for the radius, but i’m 99% sure they asked for the height of the cone.</p>
<p>24.84 for h? and they did mycoal</p>
<p>yea it asked for the height which was 24.8</p>
<p>also did anybody get 4286.78 for the compounded quarterly one?</p>
<p>proto i definitely did^</p>
<p>The probability question about the phone calls was 4/9. It was (2)(1/3)(2/3) because there are two possible ways in which there can be one local and one long distance phone call. Another way to think about it is that the probability of there being 2 local phone calls is (2/3)(2/3) = 4/9, and the probability of there being 2 long distance phone calls is (1/3)(1/3)= 1/9. 4/9+1/9 = 5/9. The only other possibility is one of each, so 1-(5/9) = 4/9</p>
<p>Whoa. I’m not going to discuss answers here lol
Just going to say that I skipped about 6 or 7
Probably got a few wrong… Hoping for a 700+</p>
<p>Rainbow, we do it after every test lol</p>
<p>@pianoman</p>
<p>i think i did.</p>
<p>wait abc why would you multiply it by two?</p>