<p>just because (x+y)^2 is 100 it doesn't mean x+y=100
u guys got really lucky because the numbers matched.</p>
<p>this basically took me 10 seconds.
(x+y)^2 = 100, (x-y)^2 =16</p>
<p>x^2+2xy+y^2
x^2-2xy+y^2</p>
<p>so 4xy=100-16
so xy=84/4 or 21.</p>
<p>I also put 2 for the how many rectangles in the circle. How would 4+ work????</p>
<p>exactly how I did it, 8parks11</p>
<p>kitty my logic for the rectangles being 4+ was that you can take any diameter of the circle and draw the same rectangle, and since there's infinite diameters you can draw, there's infinite rectangles.</p>
<p>There was a math section with a three-circled ven diagram. The question asked How many elements were in the indetersection of the two circles. There were 3 elements common to call 3 circles and 7 that were common two the two circles in question.</p>
<p>The choices were 10, 7, 3, and two other answers.</p>
<p>I put 10 as an answer, was this right?</p>
<p>I put 10 as well.</p>
<p>^probably...ugh i put 7</p>
<p>yea, answer was 10</p>
<p>i put 7 -_-</p>
<p>I answered 7.</p>
<p>Maybe its 10 now that I think about it.</p>
<p>can anyone confirm the rectangle question? and umm...did anyone have an extra math section? my test had section 3,5 6, and something else as math</p>
<p>Everyone I talked to put 4 or more.</p>
<p>blah, the section with the formula pi(6h^2/h) or something like that is the experimental section</p>
<p>didnt have that forumla</p>
<p>Yeah, cause I didn't have that question.</p>
<p>lol i dont remember that formula....i think its either 5 or 6 cuz they never have 2 of the same section in a row</p>
<p>i put 7 and i still think it is... 10 would've included x, y, and z intersection... i</p>
<p>i put 10...it seemed pretty obvious to me.</p>
<p>the question was intersection of x and y and the 3 elements were an intersection of x and y</p>
<p>it doesnt matter if the 3 also included z - z shouldn't come into the picture</p>
<p>HOWEVER, if the question said ONLY x and y intersection, then 3 would NOT be included..</p>
<p>unfortunately that wasn't the question...</p>
<p>anyway wat did everyone get for the "something triplet factor" question...it asked for the numbers under a 1000 of a product of 3 number...i had 8 numbers under 1000</p>
<p>It was 9 since 1<em>2</em>3... until 9<em>10</em>11</p>
<p>the question said Y and Z... i'm certain</p>