<p>I got 10 for the rectangular box one.</p>
<p>You set (20-2x)(30-2x) = the area they gave you...I think it was 200. Simply and foil, you get a quadratic...solve it and you get x=5, which is the height of one of the squares.</p>
<p>I thought it was 60yx^2</p>
<p>There was no y^2 but there were two x's.. i thought at least...</p>
<p>If there were x's in separate terms, you only need 1 x to cover them both for a LCM. I do not recall an x^2 or y^2...</p>
<p>Do you guys remember what letter the answer was for the box question? ie A B C D or K?</p>
<p>Hmm, i honestly don't remember the rectangular box one...do all the tests that were given today have the same questions (in different order, of course) or do they differ in some questions?</p>
<p>logically 5 is the only one that worked.</p>
<p>one side was 20. if you cut out x=10 from each side, there would be nothing left! the answer had to be less than 10 (5).</p>
<p>what was the matrix question</p>
<p>what was the question with a triangle and you had to find part of the side with a ?...i didn't know how to do it so i just doubled the other part and added another part..i explained it really bad but i remember it was the top question on the left page!</p>
<p>What was the Law of Sines one.. I think thats the only one im unsure of.. everything else I think i got right in the math section.</p>
<p>The matrix question had a unique answer. This is not the actual entry in the matrix, but it was like this if I remembered the proper letters. The final matrix had each entry that followed the following format: ab/(a+b) where a and b are the right numbers and may also be different.</p>
<p>for the matrix one....</p>
<p>I believe i got</p>
<p>1 1
1 1</p>
<p>Man, I never learned how to add matrices!!! (Like, I was never taught)</p>
<p>And it sucks because reading this I'm finding more and more ones I got wrong--</p>
<p>The Bob sled one--I initially had 24, but I changed it to (# of things)(# of possibilities)! Why isn't it that :(</p>
<p>And what was the 3 largest prime #s under 50 one? I picked the last answer which I think included 49! Doh!! Duh 49 isn't prime! (Well, did that choice have 49 in it)??</p>
<p>wait wat choice was the answer to the matrix question (A-E). I put E which had like a+b+fraction, b+c+fraction etc. and i believe other people had already confirmed this but now i am confused. Anyone?</p>
<p>what? I thought the matrices one was E, which was like</p>
<p>a + b + 1/(a+b)...</p>
<p>I thought adding matrices you add the corresponding parts together.....which was the a+b+1/a+b answer....</p>
<p>kevin - rejoice: the largest in the last triplet was 47, i think.
what where two other numbers? 41 and ?</p>
<p>yea... i'm pretty sure majority say e...</p>
<p>Rejoice!!!!</p>
<p>Was it really? Yeah I remember putting the highest 3 numbers. For some reason 49 always slips by me though, so I figured I got it wrong. Yay!!!</p>
<p>Ohhh the question was under <em>60</em>. I was thinking of 59, not 49. 59 is prime!!!! :D :D </p>
<p>I dont think I've ver been so happy about a prime number. :P</p>
<p>Now, about that bobsled one.....</p>
<p>matrices redux
(<a href="http://talk.collegeconfidential.com/showthread.php?p=4266668#post4266668%5B/url%5D">http://talk.collegeconfidential.com/showthread.php?p=4266668#post4266668</a>)</p>
<p>to do matrix addition on matricies with equal dimensions you add the elements in corresponing positions in each matrix.
prentice hall algebra II (rephrased)</p>