weird math prob on nov 4th test! help

<p>do you guys remember the one with three circles overlapping each other?
sorta like van diagram
the radius was 10 and each centers were touched by the other two circles
what did you guys get for this?</p>

<p>it was one of two questions that i skipped..</p>

<p>that and x^2+x+k=0 being one solution one..</p>

<p>2 omit and 1 wrong...any estimates?</p>

<p>I don't know</p>

<p>Wait, no! That was right.
730, I reckon. You'll need to tell me what the question was asking OP. I didn't have this section.</p>

<p>that one solution thing was 16</p>

<p>did anyone get the one i asked?</p>

<p>What was the bloody question!?! <em>Interrobangs are so much fun</em></p>

<p>oh and another one! what is the correct answer to the one that everyone's talking about??
4 or 4x?!
i got 4 dont they cancel out?</p>

<p>it's 4x for direct relationship</p>

<p>and 4 for something canceling..</p>

<p>OH yea there were one with 4x AND one with 4
okay good thankss x)</p>

<p>lol everyone is talking about this problem, but i never had it on my test, and my experimental was writing. I guess this means that there are in fact mutliple versions of the SAT...isn't that bad? like....is that fair?</p>

<p>For the circle one, the answer was half of the circumference of the circle, so 10pi, as each arc was 60 degrees, so when you add them together, you got 180 degrees or half of one of the circles.</p>