March 12 SAT Compilation of verified answers - Math

<p>i think the graph was "a", playeach at each one, with filled and unfilled dots.</p>

<p>xindianx-that section is not experimental, cuz my experimental was a writing section and I had that math section</p>

<p>for the RECALCULATE THE AVERAGE</p>

<p>it read like this, the [lower number (75?)] was USED INSTEAD of [higher number 95] and then the same for another group of 2 numbers so dont you have to ADD 30?</p>

<p>therefore, it didn't give you the number that you were supposed to substitute in first, it gave the incorrect values first...</p>

<p>no, its the other way around. the higher number was used instead of the lower numbers. I'm almost positive.</p>

<p>anyone remember putting 12 for one of the grid ins? p = 12?</p>

<p>Um, I got 85 for the average question. I did it twice and I got 85...</p>

<p>darn i totally didnt understand or get that graph question...UGHhh</p>

<p>by the way...is the 6pi vs. 12pi question still up in the air?</p>

<p>12 pi is final</p>

<p>do any of you guys remember a question that goes something like ax^2+bx^2+cd+ad and they give u value of c-d or something similar liek that?</p>

<p>ok no one seems to have addressed this question</p>

<p>it was 2nd to last on one math section</p>

<p>if you throw 2 dice, each labeled 1-6 for the 6 faces, what's the probability of getting a number that has a common factor with the other number???</p>

<p>the answer choices were always something/36 (since you do <em>/6 * _</em>/6)</p>

<p>i couldn't figure it out! and i also have no idea which section was experimental cause i thuoght i only had 3 math sections but now i'm not so sure...</p>

<p>DID ANYONE ELSE GET THIS QUESTION??</p>

<p>oh crap...i got that question, and i too did not get it (ran out of time)</p>

<p>i don't think i got that question. my experimental was a verbal section, so the dice question was probably an experimental.</p>

<p>stupidsofthesmart i got that question, the answer was 13/36 - but no worries, that question was part of the experimental section. </p>

<p>btw, does anyone remember the question where T was the answer?</p>

<p>do any of you guys remember a question that goes something like ax^2+bx^2+cd+ad and they give u value of c-d or something similar liek that?</p>

<p>oh, my problem, similar to yours, did not have dice, it was just a set of numbers {1,2,3,4,5,6} and asked for some probability of having 2nd pick/1st pick as an integer?</p>

<p>ANYONE?</p>

<p>ironchef - t was an answer for one of the multiple choice ones, it was like</p>

<p>the average of t and t+2 equals x, and the average of t and t-2 equals y, so what is the average of x and y (I think that was it)</p>

<p>Here are my gridins:
9. 89 cm-plants growing
10. 200 squirrels initially
11. 75-collective perimeters of triangles
12. 3 (Marbles problem)
13. 12 (Dont remember)
14. 0.5 (the absolute value one i think)
15. 1600 (dont remember)
16. 5/8 shaded rectangle
17. 1/3 (dont remember)
18. 2.5 (x and y inequality one, lowest possible value of y)</p>

<p>So far I got a perfect math section. I have one i think i got wrong, but it may have been experimental:
You are shown a right triangle with measures of the height and base in terms of x. You are asked how many of that triangle could fit into a square of x side length, provided that the triangles dont overlap. The answer is the area of the square, x^2 divided by the area of the triangle. I cant remember if the area of the triangle was (x^2) divided by 4 or 8.
Another problem, definitely on experimental:
Circle circumference divided into 9 segments, measure of angle x=160, because there are 4 segments or something.
Triangle Reflection across a line, C? I think that was experimental also.</p>

<p>For the stamp collectors...where the answer was 85....my friend claims that the question was different than I thought it was. Does anybody know the exact wordings or numbers used in that problem?</p>

<p>everyone, stop asking. The yin yang question answer is 12 pi. I am 250% sure.</p>