Official September 2013 ACT Math Thread

Test Preparation ACT Preparation
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<p>Here are the most of it:</p>

<p>Trapezoid was 52</p>

<p>Triangle coordinate area question : 48 + 9root3 (63.5884572681) yes
why was it 9 root 3? 48 + 9 root(3) is correct!!!
the equilateral triangle on top area : (6^2root 3)/4 plus the area of rectangle of 48 </p>

<p>natural numbers inside integers, which is inside rational</p>

<p>a and b system of equations: a = 1 and b =2</p>

<p>7 / sin(28) (?)</p>

<p>17th term was 1/(2^11) </p>

<p>101/103 → horizontal asymptote.</p>

<p>2:1 ratio one was 18 </p>

<p>323 for the 2 odd numbers. </p>

<p>Angle #3 was largest angle (?)</p>

<p>car bargraph where it asked for percentage above 25000 = unable to determine given information </p>

<p>what was the one that was a distance problem? like (#,#)
u used siatnce formula? x1-x2 squareed
(#, p) 13 apart?
-7 and 17. </p>

<p>the answer to the absolute value one was 11 ¾
the inequality for x was 11 ¾ <= x <= 12 ¼ so 11 ¾ was the answer</p>

<p>what was 59? about the ditch and it being too small? itwas (v/lw)-d=x using equation V=lw(d+x) then solve for x</p>

<p>the calculus problem: i think is x(x(x-7)+5)+1</p>

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<p>for the distance problem I got -3 and 13</p>

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<p>the distance is 12 and the point was 5, so 12+5 equal 17, 5-12= -7, i’m pretty sure it’s right</p>

204

<p>I got 7/cos56</p>

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<p>i don’t know that one and the answer was really agree upon</p>

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<p>what does it being a right triangle have to do with anything? Look at purple dinos work, that’s the same way I solved it</p>

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<p>The one with the AOB and 28 degrees, I know the answer is C but idr the exact answer.</p>

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<p>how i saw it was whether if inscribe or non inscribe angle and chose the biggest</p>

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<p>i got it wrong anyway maybe it is 7/cos56</p>

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<p>Was 7/cos 56 B? Also, what did you guys get for #56 and #58 on math?</p>

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<p>for the systems of equations asking for the values of a and b, what was the letter of the correct answer? does anyone remember?</p>

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<p>i got 3 D’s in a row for the last questions… Idk if number 58 was right IDRemember it…
The only question I had was for that 2a+2b question
I got it down to 2 of them… 2a+2b<… that one was tricky… and the one about the 5 angles i think it was the 3rd one… the bottom most…? I wasnt sure about that one</p>

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<p>hmmm i got 55-b 56-b 57-b 58-e 59-e 60-e</p>

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<p>I know for sure the last two were D. I dont remember the 58th question if you remember it please tell me so I can tell you what I got</p>

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<p>i took the link down for the drawing of the 7/sin28 vs 7/cos56 prob cause im paranoid about college board or whatever hunting me down. message me if you want it tho.</p>

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<p>I might be confusing D for E. Did you say that it was (v/lw)-d=x for 59 and Natural numbers inside of integers inside of rational numbers for 60?</p>

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<p>That’s what I got @livelikewind -7 17</p>

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<p>i know the numbers question of shapes was 60</p>

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<p>Again the y value for the parabola was -6…I’m positive. Vertex is -b/2a</p>

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<p>Phillies – no. It was either (2/5, 3), or (-2/5, 3).</p>

<p>I didn’t get the x value so I had to guess, but I got this far:</p>

<p>y^2-6y
y^2-6y+9
(y-3)^2</p>

<p>You had to complete the square. There was no b value for this parabola lol.</p>