<p>Sorry I've read abt 8 24's & figured it was safe...it asked how many right angles are made by the edges??? i honestly dont know, but 24 was my guess...i don't think it was in a hard section.</p>
<p>Ddi everyone have a question about teachers who read the Inquierer or was it experimental?</p>
<p>Okay for the cube I am pretty sure that it's 12 now. When two bounded planes intersect at right angles on their edges, it makes sense to say that one right angle is formed. (Answer 12). Not two (answer 24), not infinite.</p>
<p>But it asked for how many angles are formed at each edge. An angle is formed by two contiguous edges, and therfore one angle is formed at each corner of each face, thus:</p>
<p>4 corners * 6 faces = 24 right angles</p>
<p>But when you count at the corners, you are effectively counting each right angle twice. 24/2 =12.</p>
<p>For the phone charge question, was there any choice that said "555 -x / y"? Because I definitely remember having a 555-x and a divided by y, but I can't remember which choice I chose. I think I remember it being choice "a," but now I'm starting to worry about whether I overlooked the right answer. If not, then I probably got it right.</p>
<p>But it didn't say corners, it said "Edges."</p>
<p>number 3 can be any number 0< x < 1</p>
<p>Hey smart guys! Every square has 4 right angles. A cube is made up of 6 squares. 6 x 4 = 24</p>
<p>Exactly. If you are going to count the right angles twice, you might as well count the right angles on the edges an infinitely number of times. So the answer is either 12 or infinity. 24 could never be...</p>
<p>But fear not, I have a feeling they might throw out this problem.</p>
<p>
[quote]
Hey smart guys! Every square has 4 right angles. A cube is made up of 6 squares. 6 x 4 = 24
[/quote]
</p>
<p>Again I must remind you of the redundancy of counting in this way. You are counting each right angle TWICE. Imagine it in your head.</p>
<p>OK. Create an xyz plane. Make 8 evenly spaced out dots that create the foundations for a cube. Now extend lines out from each point so that they are clearly visible. How many angles do you see?</p>
<p>Each cube have three pairs of two planes that are parallel to each other. These parallel planes also have corresponding vertices that are connected to its parallel counterpart by a line segment. Now, the angles at the connected vertices, do you count it one time or two times? If you count it two times, why not count it three, four, five, infinity number of times?</p>
<p>You count top, bottom, left, right. The end</p>
<p>Wait a tic. I just realized something. Since the squares are next to each other you really count each right angle twice. Its only 12. I'm da man!</p>
<p>So now we agree...we got the wrong answer...</p>
<p>Wait a minute, what the hell are we doing???</p>
<p>Just wanna add to the list of SAT questions/answers.</p>
<p>Question: w = x+y+z, what is the average of the sum of w,x,y, and z.</p>
<p>answer: (x+y+z+w)/4 = (w+w)/4
Avg of X,Y,Z,W = 2w/4 = w/2</p>
<p>Answer: w/2</p>
<p>EDIT: or was this my math experimental section? Because I know I had a math experimental [I had the 1 unit cube being split into 8 parts, each with a 1/2 unit length, and finding the increase in surface area (ans: 6units)]</p>
<p>I have a feeling this question will be thrown out. about twenty years ago they had a question that tricked you that was thrown out. It was something like you have two circles, one with radius r and one with radius 3r. If you were to roll circle a along the edge of circle b, how many times would it go around. Think about it</p>
<p>9 times...</p>
<p>and LoJT, it was experimental.</p>
<p>Think about it sweet stuff. That is wrongo</p>