<p>silverdragon, I also got D on the math. I put genuine conviction in the May passage, it was asking about what the point of her saying that she thought those friends had been put there specifically for her was.</p>
<p>For the math, did anybody remember how to do the one when the function was reflected over the x-axis, how many x-intercepts it would have? Eh, my brain can't compute visual things when I'm in a panic, so I just put the number of intercepts as it was pre-reflect. 5.</p>
<p>hey! anyone know how the wording on the italian/germans question worked/why it was so ambiguous? see my post on p 22 of this thread if you need the wording, i tried my best to remember it haha</p>
<p>last night, people werent sure whether 9/4 Pi or 5 Pi was the right answer for the circle question.
So I couldnt sleep (lol) and had this stupid explanation for 9/4 Pi in my head:
All we know is the relative distance between the circles and the big circle and the middle point of the big circle.
The circle middlepoints are all the same horizontally, but have been moved vertically. So we know that the shaded circle has a distance of 1 to the big circle. We want to make his middlepoint the same as the middlepoint of the big circle, so we move him up by 0.5. The shaded circle now has a distance of 2.5 to the middlepoint of the big circle, as he has got the same middlepoint, his radius is 2.5
The distance between the smaller circle and the big circle is 2, we therefore move him up by 1. He now has a radius of 2.
2.5=5/2
A1 = Pi 25/4
A2 = Pi 4 = Pi 16/4
A1-A2 = Pi 9/4</p>