<p>Hey guys the math section with 16 problems which had the last question as a triangle with angles 45 and 60 when it was imperative to use law of sines.</p>
<p>That wasn’t experimental? College Board claims you don’t need any trig for the SAT? please tell me that section was experimental? if not which section was experimental T_T</p>
<p>@Spicy
Here’s my explanation from earlier… READ THE ENTIRE THREAD next time :P</p>
<p>triangle is pointy-end up, base on bottom.
Bottom left angle is 45. Bottom right angle is 60. Top angle is 75.
Draw a vertical line that intersects the top angle.
You now have a 45-45-90 triangle on the left, a 30-60-90 on the right.
Use basic trig to find the length of the smaller triangles’ bottoms and then add them together.
You know that the right side of the BIG triangle is 4 root 3. It is facing the 90 degree angle.
So, the side facing the 30 degree angle is 2 root 3. And this side is the bottom of the triangle. So it’s part of your answer.
YOU CAN STOP HERE! Only E gives you an answer with # + 2 root 3.</p>
<p>For the remaining side, 60 degree, you can multiply 2 root 3 by root 3 = 6
It’s also part of the 45-45-90 triangle. It faces the 45 degree angle.
The other side that faces the 45 degree angle is also 45. And it happens to be on the bottom of the triangle.
So add 6 to 2 root 3 and presto!</p>
<p>Hopefully this clears up this law of sine trig stuff.</p>
<p>@clarinetjwk</p>
<p>Then you probably didn’t take the january SAT. that was, in actuality, the easiest math section in like the past 12039120 years. </p>
<p>THAT curve was -1=760.
THIS curve is going to be, despite the difficulty, probably around 780. </p>
<p>The thing with math curves is that they are hard to predict. In theory they should all be easy, but for some reason they still have varying curves.</p>
<p>I have a question regarding which test was experimental… I took 3 multiple choice tests (only 1 grid in so that couldn’t have been the experimental!), but I cannot remember for the life of me which questions were in each test, or the time limits. I can only seem to recollect the tests in one huge jumble, so clearly the testing nerves warped my memory 
But maybe someone would be able to determine which of my math tests was the variable by the layout of my test? (possibly yours was identical)
In my test:
-the 2nd section was math
-I had 2 math sections back to back (section 7-8 if I am not mistaken)
-and the grid-in section was somewhere in there earlier… 5 maybe?</p>
<p>I am mainly concerned with this because my 2nd section was by far the worst… Everything else was a piece of cake, I just hope that the Section 2 test wasn’t the real thing or I’m screwed.
Thank you!</p>
<p>^ 2nd section math was the real thing :(</p>
<p>i had two math grid ins. and it seems like section #2 math grid in was exp. unfortunately idr any questions from there. </p>
<p>what was the answer for the question about 11 groups, 10 groups of x and one of some number. then 10 groups, 9 groups of x and one of another number. i think i rushed through that one so didn’t check all possibilities. what’d you guys get?</p>
<p>and yes, math wasn’t actually difficult. just difficult in the sense that there were some pretty tricky questions where silly mistakes couldve easily been made. and some could be time consuming like the 100-200 inclusive one -_-</p>
<p>I left 2 blank in the MC and I got 1 wrong on the free response. I also got 1-2 wrong on the MC.
projected score?</p>
<p>Also the ones I got wrong on the MC was the 5,4, x triangle thing. I put 0.9 but that’s wrong right?</p>
<p>Also what was the one where it was how many kids each parent had, and it asked for the average. Was it 3.2 or something like that?</p>
<p>Man this sucks 
probably I’ll get a low 700. I usually get 800 on math practice tests… I feel so bad right now</p>
<p>@char
Read the rest of the thread… all your answers are in there (btw, triangle area problem on coordinate plane was 2.5 < x < 4.5)
And you would get…
Assuming also 2 wrong MC,
49 / 54 (rounds in your favor) → 690-730</p>
<p>Since I already got an 800 on my last math, I decided to do it without a calculator this time. Should be interesting to see what i get. I don’t see any wrong so far.</p>
<p>Does anyone remember the question about how the radius was 4 and there were two lines tangent to the circle that were parallel and it asked for the distance between the two lines. I said 8 and haven’t seen anyone else’s response for it so far. I think it might have been in experimental as well.</p>
<p>What about the question about the sweaters? Buy 3 get one free? Did it ask for the total amount saved or the amount saved off of each sweater? I thought it was the latter, and answered 33 1/3%</p>
<p>Does anybody know if the math question about the sedans 2:3 ratio was experimental?</p>
<p>Not experimental</p>
<p>Sent from my SCH-I510 using CC</p>
<p>@tkaler</p>
<p>It was the former: the answer was 25%</p>
<p>Sent from my SCH-I510 using CC</p>
<p>Did anyone mention the question with the reflection over the y axis?
(1,-2) turns into (-1,-2)?</p>
<p>Dang, really bummed about that one. I missed 2 or 3, all due to stupid mistakes
I missed the exponents one: 2^2x-1 etc… due to calculation errors. The sweater one. And possibly the one with the translation +2 (I went back and possibly changed my answer, I forget…)
What do you think my score will be?</p>
<p>U really didn’t have to do that. Just use the 30 60 90 triangle rule.</p>
<p>We’re all going to see how we did in 17 days.</p>
<p>@jvh
Prob experimental. Didn’t have it (CR experimental.)</p>
<p>@meatkabob
That was mentioned somewhere two or three pages before… It’s the correct answer! :)</p>