<p>m^91+34m^90 = m^90(m+2) m^90 is always a perfect square, m+2 is only one when m = 34 or E.</p>
<p>oh yeah limits! What was that? 1/2?</p>
<p>also the one where the roots are 3 and -2+i i put the other root was ONLY -2-i, and whats up with the function ruange didnt we only have to find the minimum does anyone still have that original function on their calc, are you guys sure it is 1.something?</p>
<p>the limit was 2 according to my calc</p>
<p>Damn, got the symmetry one and SD one wrong <em>sigh</em>…</p>
<p>There goes my 800.</p>
<p>i can tell you the derivative was 8x^3-4</p>
<p>meaning the origianl was something like 2x^4-4x+c and when c is 1, there is a local minimum at -1.3811</p>
<p>For the average one, it was 62/25, or 2.48</p>
<p>For the m^91, was it like “what value of m makes this a square of an integer: m^91 +2m^90?” </p>
<p>Anyone remember</p>
<p>^akvareli my ti 89 could not handle number 49 how exactly did you solve it using the calc.</p>
<p>there is no need to solve it for the calc, plus there are infinite solutions anyway.</p>
<p>M^91 one was the one that made the perfect square (34+2=36) . If you factor out m^90 from both terms, you’re left with (m+2). Then you try the answer choices to see if it makes a perfect square.</p>
<p>well i factored m^90 out to get m+2 so i thought it would be 34. i tested it out by plugging it in! LOL it was huge but there was no decimal or squareroot or anything so it’s right</p>
<p>what derative question are you guys talking about???</p>
<p>there wasn’t a derivative question, but it was a way to solve the question</p>
<p>limit was 2, </p>
<p>can anyone tell me how hard it is to learn 89? I won’t be using it for Sat’s anymore (hopefully i’ll get an 800 on this one), but i was still feeling bad about the extra time i had to spend on problems such as limit or m^90 as oppose to just instantaneously get the answer from the calculator…</p>
<p>ohh, okay thanks.
@ kyoko</p>
<p>it would take a lot more time to use the calculator on the m^91+34m^90 one.</p>
<p>i made such a careless mistake on that range one, i put the dumb x coordinate;(</p>
<p>Ugh I don’t know how I did at all, looking over most of your answers there’s only maybe one I got wrong, but I ended up skipping 5 
Because I used my calc wayyy too much on the first thirty, so I had to rush the end intensely.</p>
<p>Oh well, I only wanted 700+. Hopefully that’s still possible.</p>
<p>Is it confirmed that the symmetry graph was the one that looked kind of like 2 opposite tangent curves?
I think it was choice C but im not sure…
It looked kind of like the top half of an hourglass or something…</p>
<p>*Sigh
So far I got 1 wrong [I put the probabilty as 1/2 when apparently it’s 1/4]
and I omitted 2.</p>
<p>I hope I still get an 800 :[</p>
<p>^ well it took a couple of sec. i used it to check my answer tho not to actually find it.</p>