March 2012 SAT I Math Thread

Test Preparation SAT Preparation
521

<p>[Redirect</a> Notice](<a href=“http://www.google.com/imgres?um=1&hl=en&safe=off&sa=N&rlz=1C1CHKZ_enUS439US439&biw=1600&bih=887&tbm=isch&tbnid=jMzGggaX_yiy8M:&imgrefurl=http://www.squidoo.com/area-worksheets&docid=8y0jk-axxzXwOM&imgurl=http://i3.squidoocdn.com/resize/squidoo_images/590/draft_lens17649693module148302201photo_1297929177area_of_a_triangle.jpg&w=484&h=396&ei=GNFcT_uJE6f20gGN0ZzCDw&zoom=1&iact=rc&dur=348&sig=116926233535822058485&page=1&tbnh=160&tbnw=192&start=0&ndsp=28&ved=1t:429,r:9,s:0&tx=57&ty=92]Redirect”>http://www.google.com/imgres?um=1&hl=en&safe=off&sa=N&rlz=1C1CHKZ_enUS439US439&biw=1600&bih=887&tbm=isch&tbnid=jMzGggaX_yiy8M:&imgrefurl=http://www.squidoo.com/area-worksheets&docid=8y0jk-axxzXwOM&imgurl=http://i3.squidoocdn.com/resize/squidoo_images/590/draft_lens17649693module148302201photo_1297929177area_of_a_triangle.jpg&w=484&h=396&ei=GNFcT_uJE6f20gGN0ZzCDw&zoom=1&iact=rc&dur=348&sig=116926233535822058485&page=1&tbnh=160&tbnw=192&start=0&ndsp=28&ved=1t:429,r:9,s:0&tx=57&ty=92)</p>

<p>That is how to calc the base for an OBTUSE triangle that would have been created.</p>

<p>Better pic:</p>

<p><a href=“http://www.google.com/imgres?um=1&hl=en&safe=off&sa=N&rlz=1C1CHKZ_enUS439US439&biw=1600&bih=887&tbm=isch&tbnid=ErVZTWZybpRCHM:&imgrefurl=http://logistixsolicitors.com/glistens-obtuse-triangle-symbolism/&docid=915foBIc7iRVxM&imgurl=http://etc.usf.edu/clipart/36700/36739/tri18_36739_md.gif&w=350&h=273&ei=e9FcT6bWGqfb0QGZ8sXHAg&zoom=1&iact=hc&vpx=1302&vpy=170&dur=2400&hovh=197&hovw=253&tx=212&ty=98&sig=116926233535822058485&page=1&tbnh=164&tbnw=211&start=0&ndsp=28&ved=1t:429,r:20,s:0[/url]”>http://www.google.com/imgres?um=1&hl=en&safe=off&sa=N&rlz=1C1CHKZ_enUS439US439&biw=1600&bih=887&tbm=isch&tbnid=ErVZTWZybpRCHM:&imgrefurl=http://logistixsolicitors.com/glistens-obtuse-triangle-symbolism/&docid=915foBIc7iRVxM&imgurl=http://etc.usf.edu/clipart/36700/36739/tri18_36739_md.gif&w=350&h=273&ei=e9FcT6bWGqfb0QGZ8sXHAg&zoom=1&iact=hc&vpx=1302&vpy=170&dur=2400&hovh=197&hovw=253&tx=212&ty=98&sig=116926233535822058485&page=1&tbnh=164&tbnw=211&start=0&ndsp=28&ved=1t:429,r:20,s:0&lt;/a&gt;&lt;/p&gt;

522

<p>It was a right triangle… the base was along the x axis and the leg was from a point on the x axis to (6,4)</p>

<p>Oh, did you have to subtract?</p>

523

<p>So it was 0? For some reason I remember -1… crap… Anyone remember more of the problem? Maybe the actual value of c was -1. But I think I bubbled correctly…</p>

524

<p>Drac, was the question asking about the area of ACD or BCD that has to be greater than 5 and less than 9?</p>

525

<p>monkey - For the triangle one, the height remains the same. The height is not the distance from the base to the highest point. It is essentially saying if this triangle was a right triangle how tall would it be.</p>

<p>JUST TO CLARIFY - 4 works for that problem correct?</p>

526

<p>Triangle, ABC I believe. It gave you points A(0,0) and B(6,4) and asked for C(0,b) and asked you to come up with the value.</p>

<p>@coruso</p>

<p>yes, 4 is in between 2.5 and 4.5</p>

527

<p>C was (b,0) I believe</p>

528

<p>@caruso</p>

<p>No, it definitely wasn’t, I remember I checked that since I ALWAYS do that by habit with problems involving coordinates.</p>

<p>IF it was, 4 would be incorrect because that would mean the area is 12, outside the range needed.</p>

529

<p>Does anyone remember a math question about a kid’s height based on his parents’ heights? it gave a graph and his father’s height, and the answer was his mother’s height. I am thinking this may have been one of the math experimentals</p>

530

<p>@collegebound1717</p>

<p>Experimentaltaltaltaltaltaltal.</p>

531

<p>What do you guys think -0 will be?</p>

532

<p>jvh341 is that a joke?</p>

533

<p>Can something explain why the 4x>10 question is 11? </p>

<p>The question (and I definitely remember this) was asking for the LEAST LIKELY answer…I therefore picked A, which was the smallest number because it didn’t work for either inequality.</p>

534

<p>@GalindatheGood It said what was the LEAST NUMBER that satisfied the equation, and, everybody keeps debating the max/min problem. I read that problem over and over again; there was no trick. It said what is the difference between the maximum and minimum of the NEW function. :confused: I asked a couple more people, and it’s confirmed. I’m almost positive that the answer was, indeed, 6.</p>

535

<p>@howmanyofme
the question said 2x>8y
4y>10
so if you dividethe first inequality by two, you get that x has to be greater than 4y
so if 4y is greater than ten, x also must be greater than ten. 4y could equal 10.1, so the integer above that(asked for integer value) was that min value of x is 11</p>

536

<p>Okay, so this is the list of answers so far…we only have 39, though, so we’re missing some! If you think of any that aren’t on the list, just add them on!</p>

<p>a=4 (or around there, less than 4.5)
4/15
XY
0 (x equals 14, so does y, so x-y is 0)
1.9
c=0
d-a=5.5
35 (for 2:3 ratio)
6+2 sqrt3
1440
25 percent
126
28 cats
z is the smallest angle (50 degrees)
1/4 (line with 4 points, distance)
34
155 (yellow crayon question)
3/4 (8x/7, 2x/7)
6400
-30 is the seventh number in order for the average to be 0
8 factors (6p question)
6
inverse graph looks like a curve thing
4
3.2 (bar graph)
60 degrees (hexagon in a circle or something like that)
2 (Q(t) = p(1/2)^t/10)
4 (another one…I forget for which question)
15 (sum of squares)
2,3,4 (3 squared = 9)
-11 (4th term is 10, 6th term is 24)
x=-6 (6/13<{x-1}<8/15)
86 (ten groups with a group of six)
b=2 (x^2+4x+2b)
4.5 (bridge unfinished)
29 (between 100 and 200)
1/6 ( shaded triangle)
11 (inequalities question)
4 (hundreds digit)</p>

537

<p>^ you forgot </p>

<h1>19 first math section</h1>

<p>for 0 < a < b < c</p>

<p>y = (x-a)(x+b)
y = (x-c)(x+b)</p>

<p>where do the graphs cross?</p>

<p>I believe it was (-b,0) which was E</p>

<p>you also forgot like #3 on the first math section</p>

<p>it was like dots <strong>|</strong><em>|</em>|** which equals 2312
asked what number can be formed by removing one of the dots and bar
and I believe it was 312 by removing the first two and the bar? or 512??</p>

538

<p>Can someone explain to me how I to do the 2 3 5 with the exponents one? I just set each corresponding exponents equal to each other and solved for each variable and multiplied them together. Came out with 1397 :frowning: Close I guess, but I’m trying to figure out if my method was flawed or if I just made some stupid mistake solving for variables.</p>

539

<p>-1? what would that be?</p>

540

<p>between a 780 and an 800. This test is likely going to have a nice curve to it.</p>