June 2010 Math

<p>Arrrgh…</p>

<p>Well, okay, so anyone remember the question where there were “a” numbers in a set and then “b” numbers in a second set, and “y” numbers common in each set and then it asked something about how many unique terms were NOT shared among the two sets.</p>

<p>You had to pick an equation and I think I got something like a + b - 2y… or something.
Well I think that was the answer I got and thats what the question asked. Can’t be sure. It wasn’t one of the “hard” questions near the end - it was multiple choice and I think an early medium question.</p>

<p>Only mentioning it because I didn’t have the math experimental and this question/answer doesn’t seem to be listed on the “consolidated list”.</p>

<p>Real quick question guys, how much do you think my score is if i miss like 4 and omitted 1 on the grid in. Also, how much do you think the score is IF i missed like 6?</p>

<p>Probably like 650 if you missed 6.</p>

<p>What about -1, omit 1. I’m terrible at figuring this stuff out. :/</p>

<p>Goldy: I asked the same question yesterday. Someone said it would probably be somewhere around 750-760.</p>

<p>I had 4 math sections, therefore one of them is the experimental. I felt solid on all sections except one of them, the one i had trouble with was the one with the gift bag question (with a table) as the last question of that section, and another question about luxury cars (with a graph). Did anyone not have this section who didn’t have 4 math sections. I really hope so!</p>

<p>I think that was experimental.</p>

<p>WOWW. how did you do that problem then? i got -1/m too just cause i assumed. i got 770 on March and now i got this stupid question wrong ? -___________- better be a 780 =((((((((((((((((((((((((((((. anywaym how is it done ?</p>

<p>It could not be -1/m, since the negative reciprocal means that the two segments would have been perpendicular.</p>

<p>are we sure about this answer: x+y=sqrt(n); (x+y)^2 = n </p>

<p>i thought the problem said" the sum of x and y is equal to the square of n. what is n in terms of x and y?</p>

<p>i put down= x+y=n^2; sqrt(x+y)=n</p>

<p>I’m pretty sure it said the square root of n.</p>

<p>it was square root.</p>

<p>****!!! im soooooooo dumb</p>

<p>also does any one remember how these two questions went: "
Some circumference thing: 10pi
Another circumference thing: 32pi"</p>

<p>and also was “4 yards of cloth is 28.80” answer choice E? or the highest value of all the answer choices</p>

<p>Eagles: The 10pi question gave you two points on a graph. You had to find the distance between the two points, which is the diameter (10). So the circumference would be 10pi. </p>

<p>For the 32pi question, there was a picture of a circle and it gave you an arc length of 8pi (which happened to be 1/4 of the circle) so you would multiply 8pi by 4 to get 32pi.</p>

<p>And yes, I think I remember $28.80 being choice E.</p>

<p>^Yup. 10 char.</p>

<p>How was the chairs 72-50?</p>

<p>I thought the problem was start with 12 rows 6 columns so thats 72, take away 2 columns and 1 row isn’t that 11x4= 44? 72-44 = 28?</p>

<p>I hope I did well on the math section. Math is my forte generally an would like it to reflect that way in my scores (though I suppose not at the expense of my other scores :P). I just feel like I made a few stupid mistakes that’ll cost me.</p>

<p>I’m not counting on an 800, I never was. Never imagined I’d get even close. Don’t think I did get close actually.</p>

<p>But my big accomplishment this time around was being able to finish each section. This only ever happened when I took the PSAT for the third time this year as well. Every practice test, every SAT before - I’ve always run out of time. Sooo… I’m pretty happy. I may take it again because I’ve realized how many stupid mistakes I made, but I’m content.</p>

<p>did the 10pi one have a coordinate of like -6 or like -2 for x somewhere?? and like a 4 for the y?</p>

<p>And nah you have your columns are rows switched initially. 12 columns, 6 rows - 72. You take away 2 columns, 1 rows gets you a 10 x 5 set which is 50. I got it wrong because I put down how many chairs remained, not how many chairs were taken away :(.</p>

<p>10pi was like (-6,0) and (2,6) and then you solve for the diameter (the distance between the two points) to be 10 (because its a Pythagorean triple: 6,8,10) and the circumference around these two points would be 10pi.</p>