October 2010 Math SAT Thread

<p>1080 was grid in. You got it either by dividing 180 by 5, which is 36, and then multiplying each number by 36 and adding. Or, you could divide each average by 5 and then multiply each number by 180 and then adding the products.</p>

<p>@Linger: Yeah 2k. Haha I think I skipped that question the first time because I thought it was too easy and must’ve contained a catch.</p>

<p>**Total: ** 39/54</p>

<p>Fill-Ins:
15 paperback
1.2 = radius
290 - locker question
24 combinations
6000 computers difference
5/3 = 3x
10<x<14 obtuse triangle
m = 2
1080 average</p>

<p>Multiple Choice:
equation is 2x+1 when f(x)=2x
x^2 > 3/5 * y^2 (E)
PR = 8
3a = 20
f(v) - f(t)
x + z = 7
|xy| = 1
y = x/ root 3
119 is the green
july had 8000 less
paralell lines was I and II only
4500 dollars
4 for height of cylinder
15 perimeter of triangle
10 = area of the 5 rectangles
1 is width of box
8sqrt2 distance of diaganol
x/root 3 for slope of line of 30-60-90 triangle
x<y (E) for the t,x,y question
18 - curved scatterplot going up to 20
8 - 6x + px = 14x
12 - area of 5-5-6 triangle
3a-20
11-4x-y
5 - pentagon of toothpicks
27 people for survey
three - a/b
x was 45 degrees
(-3,3) - ax^2 - 9
2k = (1+x)(2+4x)</p>

<p>Dice one: 1/54</p>

<p>6x6x6 (three dice) = 216 ways</p>

<p>6+6+6=18 (only 1 way to get that, if all three land on 6)
5+6+6= 18 (3 ways to get that; each of the dice can be a 5…)</p>

<p>total four ways to get 17 and 18
4/216= 1/54</p>

<p>i dont see how people got 1/108. it was pretty simple.</p>

<p>What question was “3a = 20”</p>

<p>Danggg now that you explain it, it sounds easy ):
I put 1/27, because i got 2/54. or something.</p>

<p>Wait, is the 8 sqrt 2 question for the question with the 4 circles with radii of 2?</p>

<p>@rennir, yes…
i put 8 sqrt 3 ):
can someone explain that for me?</p>

<p>Wow the only question I missed was the computer one… I put 9000 **** me.</p>

<p>does anyone remember the high school question (like the numbers or stuff?)
@natalie9494 yeah, when i looked at it i did some complicated things like cubing 1/6 and adding it like…four times…it gives the same thing. but it’s easy when u just think of the (#of desired combinations/ #of total possible combinations)</p>

<p>^ (#of desired combinations/ #of total possible permutations)</p>

<p>Combinations mean order doesn’t matter, in which case the answer would’ve been 1/108.</p>

<p>@ihatetesttaking-No. There are 3 ways to get 17. 566,665,656</p>

<p>What was the question listed as “3a=20”?</p>

<p>What was the question about the x = 45 degrees?
Add this to the list radical(a + b) = radical (a) + radical (b)
(4,4) disproves this</p>

<p>The 45 degree one i think is one that have a right angle and 6x’s all adding up 360, so x =45</p>

<p>@member123: I remember monday was 5 and 6.75 and 9.75 were two of the other numbers. I don’t remember the other two.</p>

<p>Can someone remind me what the “(-3,3) - ax^2 - 9” was?</p>

<p>what is the question of cylinder again?</p>

<p>@jollybolly I think it was 4/3</p>

<p>my bad, its 3a - 20, not 3a = 20</p>

<p>Anyone know the question was to the “3a=20” thats is listed as an answer on the list?</p>