<p>The 96pi plus 64 one is so tricky. If you draw the 2 parts of the circles, the leftover is a square (whose area is 64). I really hate this math section. I remember the Math sections on June SAT was way easier than this!</p>
<p>And thanks rraghuraman! you have a nice name too! :D</p>
<p>Here are my answers from the Grid-ins:
9. 4000
10. 402
11. 22
12. 72
13. 5/2
14. 78
15. 4/5
16. 9
17. 0.5
18. 3600</p>
<p>Number 18 was a beast and I ran out of time, so I never got a chance to review them. Take them for what they are worth.</p>
<p>The overlapping circles were 3/4 of a circle. So their area was pi(r^2)(3/4), which was 48pi. There are 2, so their area together is 96pi. The 64 comes from the square formed in between them with a side length of 8 (also the radius). The area of the square was 8 x 8 = 64.</p>
<p>ah, that really stinks oceans D:</p>
<p>anyways, i apparently got the one with the BD slope wrong, i couldve sworn it was 2 points away but i mustve sketched wrong. so right now im at -3, whats the highest i could get at this point?</p>
<p>Shaggy, the one with the answer of 9 was:</p>
<p>27^x = ka. </p>
<p>I forget the particulars, but it came that x = 1, k = 3, and therefore the answer (a) was 9.</p>
<p>wow for the overlapping circles i just put 96pi, i dont even understand how you can see a square in two overlapping circles rofl</p>
<p>Does anyone remember what #18 on the grid-ins was asking?</p>
<p>yeahhhh ESSAYTEES with the superior memory!</p>
<p>EssayTrees, can you make a quick sketch of the diagram?</p>
<p>@Oceanz Same, could have sworn it asked for K and not x, but I filled in that question during the next section as I didn’t have enough time to finish it, so if I got it wrong I deserve it.</p>
<p>Anyone remember the question for #14 on the fill-ins whose answer was 78?</p>
<p>What was the one with the sweaters and scarves?</p>
<p>@mathadawg, actually, we’re in the exact same boat, lolol.</p>
<p>@rraghurman, you have one big triangle, split up into 3, with y degree angles at the top and 54 degree angles at the bottom two corners. you had to find x, you add up 54+54 = 108. 180-108 = 72 divided by 3 = 24 so y is 24. 24 + 54 = 78 and thats your answer</p>
<p>The 3600 question was about n being divisible by 24 and 10 and equaling k^2. </p>
<p>For the two circles, draw it. Then, draw two radii in each circle, from the center to the point where the two circles meet. The resulting figure makes a square.</p>
<p>The sweaters and scarves: 5 of each, 1 each matched 1 of the other, what was probability of NOT getting a matching set. I got 4/5, but felt like I was missing something.</p>
<p>EssayTrees, can you please make a rough sketch on Paint?</p>
<p>What do you guys think the curve will be?</p>
<p>Please god let this curve me -1 800!!</p>
<p>How did you get 4/5? Wouldn’t it be 1/5 x 1/5 = 1/25? than reverse for the answer being 24/25?</p>
<p>how about the one with the different paths? was it 20?</p>