Official SAT Math IIc October Discussion

<p>hmm, I think I might have gotten that wrong. Argh. -2.</p>

<p>It was between. I think we agreed on that one.</p>

<p>i said rosa was b/w juan and pedro... bcus she was in 80th percentile, p was 5th and j was 34th i think?</p>

<p>She was 32nd in the class. The others were above or below. She was between all.</p>

<p>Rosa's score is between J and P, I'm sure of that one.</p>

<p>One of the questions had to do with S sub n. Was that one 2^K or something like that. I forgot. It seemed too easy...</p>

<p>2^(k-1) I think</p>

<p>Was the sequence like 2,4,8,16... or something like that?</p>

<p>I remember it turned that you multiply each number you got previously by 2...</p>

<p>I really can't remember, but I worked it out and I got 2 to the same power as it was in the question which I think was (k-1).</p>

<p>Does anyone remember that question? My mind is not good at recalling questions anymore xD</p>

<p>yeah it was 2^(k-1)
the ratio was 2. and it was 1, 2, 4, 8, 16..
so if k=1-->2^0-->1
k=2-->2^1-->2</p>

<p>Sn=2(n-1)</p>

<p>and i remember getting the 2^(k-1) answer</p>

<p>Anyone else remember any more questions?</p>

<p>I think I put 2^k-1... okay good.</p>

<p>Did we discuss all the hard questions already? If we did, hopefully I didn't miss anything else. Gah.</p>

<p>was the one with the dots 92?
lol that one took forever for me to figure out</p>

<p>I figured out that if you substracted number of dots or whatever from the previous, you got an odd difference that steadily increased??? I don't remember. What were the other choices?</p>

<p>Yeah, I got 92.</p>

<p>i think i got 92. what i saw was this pattern..
like the 2nd one had 1 dot in the first row, 2 in the second, and then 2 again because it was the 2nd picture.
4th one: 1+2+3+4(4)
like the 5th one was: 1+2+3+4+5(5)
so the 8th one was: 1+2+3+4+5+6+7+8(8)
etc...yeah strange way to go about it.</p>

<p>do you remember the other choices?</p>

<p>i remember there was a 24 and an 81</p>