June 2009 ACT Math Discussion

<p>i can kind of see amiller’s point but i think the triangles on the sides of the square are insignificant because no matter how u draw the lines of symmetry the square portion on one side of the line has to match up with the square portion on the other side of the line. this can only be done 4 ways</p>

<p>or maybe she lied :P</p>

<p>Not all ACT scores will be out the 24th. They put them up weekly on Wed and Fri. So I think the 24th is just the first round of scores put up…</p>

<p>i thought of 3 other questions that I haven’t seen discussed yet.</p>

<p>1) the question that said “what is the sum of the first four digits, when the 8th number is BLAH, and the 13th number is BLAH” or something like that</p>

<p>2) the question about “What is AEC, when ABC is 82 degrees”</p>

<p>3) I don’t remember seeing the answer to the jury duty pie chat on here yet. “What are the odds that a person 25-29 will be on jury duty” or something along those lines.</p>

<p>lol what is that?</p>

<p>@damon

  1. 14.5
  2. i don’t remember the exact answer or question
  3. 21:29</p>

<ol>
<li>14.5 or something like that</li>
</ol>

<p>Damon1570</p>

<ol>
<li>14.5</li>
</ol>

<p>could u be specific on #2?</p>

<p>2) that was discussed the answer is 90
3) i tink we said 21/29</p>

<p>for the 1st question was that one of the last questions on the test, if so wat letter A? F?</p>

<p>questions to be answer:
how much went to charity it was like $3 an hr (2hr for small/3hr for large)
side of rect like 4 (so 8x4)?
add .1 to slope = .22?
56xy-8xy something???
was something 14%
-6|-2+8|or something? what was the answer
plug in for that f(x) was like 8(x)^2
and 8a-4b+2c i think thats wrong but anyone remember the right thing</p>

<p>Ah yeah #2 is 90</p>

<p>oh yea that rings a bell
it is 90 degrees</p>

<p>1) by damon was like #20, i remember because I couldn’t figure it out and went back to it at the end and had an epiphany</p>

<p>If you divide each side of the square in thirds, count over two thirds from the left and then draw a diagonal across to the opposite side ending 1/3 from the left on that side, that line will make a line of symmetry for the figure</p>

<p>guys i dont remember a few…can someone remind me what:</p>

<p>560 largest
4 determinant (was that one of the last ones? like…55-60?
missing side is 12</p>

<p>missing side is 12–> that was a big triangle with a little triangle in the bottom right corner. Gave you one side of the big tri is 20. Two sides of the little triangle are 3 and 4. You find 5 as the hyp of the little tri. Set up proportion of 20/5=x/3. answer=12</p>

<p>edit: woah why is that thing at the top of my post</p>

<p>here wat we have so far… if you think of anything just post</p>

<p>1:3
560 (larges)
8 lines of symmetry (IN DEBATE)
3.14 (something with the glass)
4 (det)
how much went to charity it was like $3 an hr (2hr for small/3hr for large)
240 (avg)
3:2:1 (jerome kevin seth)
(5,0) (the square 3cm side)
384 (surface area of cube)
intersecting lines
angle was 90deg
missing side was 12 (gave u like 20 for h, and a 3,4,5 tri)
3 the area of the rect think with kA
(a/c) for some sin/cos/tan thing - letter B
30tan52
60 deg chord
goes through quad 1, 3, 4
add 18 red marbles (very similiar to a practice test question)
circle was rad38 center was like (5,0)
ice rink 16 + 8pi
rad(16+x^2)
to make the equations infinite times by 6 (2x-y=8 and 6x-3y=4a)
pass ball around 5th
midpoint was 5
60 for the other side of rect box = 81000cm3
x<42 (or 48 i forget)
overtime $322.5
72 combinations of food
ADCB
19,20
y=5t+14
pi chart 21/29</p>

<p>questions
how much went to charity it was like $3 an hr (2hr for small/3hr for large)
side of rect like 4 (so 8x4)?
add .1 to slope = .22?
56xy-8xy something???
was something 14%
-6|-2+8|or something? what was the answer
plug in for that f(x) was like 8(x)^2
and 8a-4b+2c i think thats wrong but anyone remember the right thing</p>

<p>@tbonus</p>

<p>I put 14% went to charity
I agree with .22</p>

<p>Yup fourteen percent for sure!</p>

<p>.22 is right. That freaking problem had me soooo stumped and it was so easy. the slope was .12 and the answer was .1 greater than that. So .22 but I kept trying to do ten percent more than .12 omg I’m sooo glad I figured that out</p>