December 2010 ACT Math Discussion

<p>I got 120, since it was a permutation .</p>

<p>Hardest question was definitely the one with alpha-numeric soup combination</p>

<p>Tan x< 2, right? Because it was less than 0.5?</p>

<p>I had tan>1/2
Wasn’t the equation: sinx>0.5cosx?
so you divide cosx from both sides and you get tanx (sinx/cosx)>1/2. Isn’t that right?</p>

<p>I’m not ashamed to say that I probably bombed the math (again). I was fine halfway through it, then things started getting kind of “sketchy”, and after that – I was on the verge of just filling in random bubbles.</p>

<p>I got tan>1/2 too,</p>

<p>sinx=1/2cosx</p>

<p>sinx/cosx=1/2</p>

<p>tanx=1/2</p>

<p>@yale: It was less than 0.5 cos x, not greater than.</p>

<p>^ACT, no, it wasn’t. I have the function in my calculator because I graphed it. IT is sinx > 0.5cosx</p>

<p>^nope. It was definitely greater than. I can you assure you that much.</p>

<p>Hmm, maybe I was wrong then… But I could have sworn it was this: cosx > 0.5sinx because I kept getting cotangent when I divided sinx… :(</p>

<p>Well I might as well post my answers I remember.</p>

<p>88 degrees
a =/ c^2 or something like that
a+b/ (sqrt(a*b)) (Question 60)
Center of circle was (1,7) or something like that
200$ for both cabs, same price
point was -3,2 once translated counter clockwise 90 degrees</p>

<p>also:</p>

<p>parallelogram, 2 sides are 22 and you CAN figure out all of the side lengths
12 times the volume of the cylinder</p>

<p>Perpendicular distance between the midpoints of the 2 sides and the intersection of CF and AD was 7.5</p>

<p>^ It was a can’t equal c for that question, not c^2. And what was the 88 degrees one?</p>

<p>

</p>

<p>Yes, sorry, that’s what I put.</p>

<p>It was find the angle of CDA or something</p>

<p>You found 2 of the angles were 48 and 44 so the third had to be 88. 132 degrees was given, AB was paralle to CD or something like that.</p>

<p>Center of the circle one was (0,7) since the diameter end points were (2, something), (-2, something)</p>

<p>This is probably an easy question that I just managed to screw up, but what was the answer to the dogs/cats one?</p>

<p>I haven’t even taken Algebra 2 yet, but I thought the math test was easy[if you have a scientific calculator]</p>

<p>@WongTongTong: Everything you’ve mentioned seems correct to me. The midpoint of the line was (0,7).</p>

<p>^yeah, that’s what choice was. I forgot the x coordinate thing.</p>

<p>And Jenny, just add down the column and you would have got the answer (Forgot the number)</p>

<p>Now go check all my science answers (posted 23 questions? ish)</p>

<p>I think it was 114 for the cats and dogs one.</p>

<p>Damn it. Wow, I’m an idiot.
I don’t know what possessed me to think it was 132.</p>