<p>also, what section did you guys have the road trip questoin in?</p>
<p>I THINK road trip was section 7</p>
<p>hey guys, there was grid in question that was something like this: the arithmetic mean of x and y is 1 and the difference of x and y is 1. whats xy?. i got .75. y?
for the arithmetic mean.
x+y/2=1, x+y=2<br>
x-y=1
1.5=x
.5=y
1.5*.5= .75
am i right?</p>
<p>^ That’s correct.</p>
<p>dudes, for a grid in, how do you put in .75 is it [.][7][5] or [.][7][5] or [.][7][5][0]</p>
<p>I usually just answer in fractions. In this case, I bubbled in 3/4.</p>
<p>I put it in as 3/4 but I think any of those entries would be acceptable.</p>
<p>yo did you guys have one that was like
r triangle x= r(2)/x …? then the question was like 9 triangle 12= which answer </p>
<p>i got 3 triangle 4</p>
<p>I remember that question. I got three triangle four.</p>
<p>anyone remember a grid in question with point (6,0) and you had to find U in another point (t,u)?</p>
<p>I knew it was a 30-60-90 triangle but my answer was like 5pi or something :'(</p>
<p>^ the answer was 5 pi</p>
<p>harvard do you remember any questions on the test or any you got wrong?</p>
<p>For people who have my version… the one question about the dog and owner. was the answer 8 or 12? I put 8 but i read other people’s posts and they put 12 : /</p>
<p>I think the consensus is 12</p>
<p>what did you all put for the questions where you had to find the coordinates of another point on a quadratic curve? The two points they gave you on the curve were (-2,-3) and (-5,3) I didn’t have time so I put down a random answer! I put down (1,2) I think but I believe the real answer is (1,9) ??</p>
<p>DAMN!!
i thought i did good on the math this time :(</p>
<p>for the quadratic one… you use symmetry to find the point. so the point is (1,3)</p>
<p>About the question with ab-c=0, I also got only 2. If you plugged in certain numbers it worked, but it fell apart with others.</p>
<p>It was one of the last questions in the section (and was therefore supposed to be challenging), so I have trouble imagining that it would just work.</p>
<p>There seems to be some disagreement as to what exactly the formula for option 3 was, but I remember plugging in about four sets of numbers-- three worked, one didn’t.</p>
<p>it was ab+c=0. and II and III both worked.</p>
<p>square both sides.</p>
<p>a2b2 + 2abc + c2 = 0
a2b2 + c2 = -2abc</p>
<p>that was III.</p>
<p>On the last math section the second to last question said to describe y in terms of x and showed a number line. Anybody remember the answer? I put 3x -2 but I think it may have been x+2</p>
<p>Does anyone remember a question where they gave you a number line between -1 and 1, and they had a bunch of letters plotted on it? Then they had roman numerals asking which must be true.</p>
<p>3x - 2 was correct for the number line.</p>