PSAT 2010 Wednesday Math Discussion

<p>Can you explain why it would be 5/7, SandwichGirl?</p>

<p>I remember one question about angle for SPU or something. 40 degrees, i think. 70-30
EDIT: area of trapezoid = 25</p>

<p>-20 f - 40%?</p>

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<p>There was another angle question where the answer was 70 degrees, I believe. I don’t know if it’s been mentioned yet, since it was extremely simple.</p>

<p>Sorry if this was mentioned before, the one about the equilateral triangle, was the diameter of the circle twelve? Because each side was 6?</p>

<p>^yes.
^^That was the one where you had to find 110’s supplementary angle in the triangle I believe.</p>

<p>There was one with a graph of two functions on it talking about the absolute value of something. The answer was two.</p>

<p>50 for radius
2 sets of parallel lines.
-400 for another (or whatever A was)
640 volume of cube
6760 for AA2
9.1 is average
Month 4
5/7 slope
1/5 was the one where 5y = x(root something)
.35 is between .3 and .4
41 for triple venn diagram
Monday
5/3 is the difference between x and y (grid in)
n>20 for music store
30 is difference in daily sales
315 for the length of the rectangle
40 degrees (70 -30)</p>

<p>^^^^wasn’t that asking for the circumference of a different circle? I kind of remember a question like that.</p>

<p>ActTester, I have no idea what the points are, and I would be very dubious of points provided by other people. But I am absolutely positive it is 5/7. I had time to check every single question 3 times on the math. I would bet a hundred dollars it was 5/7.</p>

<p>Oh yeah, and guys, I just remembered what answer 8 was for. It was about a triangle inside another and it was similar. And I remember take 3/4 of 12 to get 8.</p>

<p>^ Yes, but can I ask you how you approached the problem? The slope one, I mean.</p>

<p>What was the answer to the one with the graph asking how many points made this true: |g(x)|>f(x)?</p>

<p>^I put 2. But I wasn’t entirely sure</p>

<p>^</p>

<p>I think that one was two.</p>

<p>@ ACT TESTER.</p>

<p>Uh… I switched the x and y coordinates of each point and found bank… I mean slope.</p>

<p>^ I put one, point B I think, but I have no clue if that’s right… The question was worded confusingly.</p>

<p>EDIT: ugh! was it two? weren’t you supposed to look for the point(s) where g(x) is higher than f(x)? damn…</p>

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<p>Higher than f(x) or lower than -f(x); you probably missed the absolute value bars.</p>

<p>I’m pretty sure it wanted the absolute value of the points but I was confused and put two.</p>

<p>Also That one about the greatest increase in popcorn, wasn’t there an increase of 1000 from month 2 to 3.</p>

<p>Oh right! Completely missed the absolute value. Well there goes another 1 and 1/4th point for math. Sigh.</p>

<p>I got that there were two points where |g(x)| was greater than f(x), if that’s what you were asking originally, and the greatest increase in popcorn was an increase of 1000 from month 3 to 4, so 4 was the answer.</p>