~~~~January SAT Official Math Discussion~~~~

Test Preparation SAT Preparation
181

<p>how about some1 just tally up who thinks what.... and then come to a consensus of the answer then move on?</p>

182

<p>Yeah, I got d^2h.</p>

183

<p>it asked for ONLY the intersection between Y and Z not elements common to Y and Z.</p>

<p>there is a clash if u include intersections between X Y and Z, (There are more if X contained more of the intersections)</p>

<p>We are not looking at a set of numbers but the numbers that are in the SET.</p>

184

<p>I don't recall only in the question.</p>

185

<p>What I like about math is that it's clear cut. When we start arguing over semantic, that's when it becomes all hazy like English. Boooo.</p>

<p>I sticking to my answer of 10.</p>

186

<p>the only part does not matter. Sungchul is right (except his answer :p)
it asked for the intersection between Y and Z.. not X Y and Z
if it was X Y and Z it would be 3 by the way.</p>

187

<p>omg it is 10.</p>

<p><a href="http://www.purplemath.com/modules/venndiag2.htm%5B/url%5D"&gt;http://www.purplemath.com/modules/venndiag2.htm&lt;/a&gt;&lt;/p>

<p>go down to the 2nd venn diagram with 3 circles.</p>

188

<p>wait wendy....so u agree now</p>

189

<p>yeah i admit its probly 10. they should explain their notation tho. its not standard.</p>

190

<p>man u guys suck lol
tried tricking all of you.</p>

<p>this is basic statistics by the way.
and it would still be 10</p>

191

<p>i always got 10 for that answer</p>

192

<p>-1 is 790 right?</p>

<p>not 780 or 770</p>

193

<p>I'm sure you did 8parks11. ^^</p>

<p>Chronic, it could be either of them depending on the test date.</p>

194

<p>I just called my AP Calc teacher and she told me that it was 10 for sure.</p>

<p>Glad someone else found it tho, it was getting ridiculous.</p>

195

<p>Can anyone talk about the minutes one? I seem to be getting 140 mins. Maybe I setup the equation wrong.</p>

196

<p>The phone one?
I got 40 minutes.</p>

<p>20x.07=1.40+1.00=2.40
40x.06=2.40</p>

197

<p>1+.07(t-20)=.06t
Solve for t.</p>

198

<p>I know this was a simple question, but when I graphed the problem to double check it looked wrong. Please, someone just answer it quickly: the one with two intersecting perpendicular lines, was the answer 5 because it made the slope a negative reciprocal?</p>

199

<p>Thanks but can you provide the wording to see how I came up with my equation? I dont remember.</p>

200

<p>I got 5 for that one as well...</p>