Official December 10th ACT Math Discussion

<p>if sin theta = 1, what is cos theta equal to?</p>

<p>@panmit2 lol what? whats keeps and beeps. if your talking about the one about like schmoops and that stuff answer was A from transitive property. if A = B and C=A then C=B
in context it was like the b word = schmoop
@edit for michaelsalzele. it is 0. simple trig of the unit circle.</p>

<p>0
do sin-1(theta)=1
then cos(theta)=x
x=0
…I think</p>

<p>sinx=1, cosx=0</p>

<p>Can anyone get the letters for the garden prOblem and log prOblwm?</p>

<p>I think the log problem was D. Someone else confirm?</p>

<p>I know the answer, but not the letter.</p>

<p>The Garden problem ****ed me off so much, I spent like 3 of the last few minutes trying to figure it out</p>

<p>@mystical: all u needed to do was cancel the two options that didnt come out to 144. then one option was 3x48 you cancel that out. whatever left u just realize the perimeter is x + x + y. so one side is doubled. if none of the two sides double to equal a sum of 36 it is wrong. easy problem xd</p>

<p>what did you guys get with the weight one using the w, p, and 5?</p>

<p>|w-p| <= 5 was the right answer.</p>

<p>6/77? Are we sure? Was that choice A?
I spent a while on that problem, and used a few different methods… but I don’t think I got 6/77. Unless it was choice A, b/c that’s what I put.</p>

<p>So, was it A?</p>

<p>The question was (a+b)/ab.</p>

<p>It was definitely 6/77. I actually plugged in numbers for the equation and got 6/77.</p>

<p>Yes, 6/77 was A. I’m completely sure. I used system of equations to solve for A and B and then multiplied them.
Good job. :P</p>

<p>6/77 fo sho</p>

<p>What were the last few problems? Those are usually hard.</p>

<p>All I remember is the volume one. </p>

<p>Anyone remember? Like, the last 5 or so?</p>

<p>volume
pi and 3
1/9
log(x^2 -2x)</p>

<p>can’t remember much more…</p>

<p>What was pi and 3? Also, I responded to your science query.</p>

<p>The f(x) = 3sin(2x) graph.
Period = pi
Amplitude = 3</p>

<p>Can anyone tell me what the garden question was? for some reason I don’t remember the question altogether. Also, what answer did you guys get for the question with 135 digits question? was it 4? the last question with median = 91? the one with the 2 machines = straight line except slower rate at 11am then bounced back?</p>

<p>also anyone remember what number the weight problem was with w and p and 5, around 42 right, i guessed b for that one anyone know what letter it was?</p>