<p>The question regarding 3n-1.
(sequence) came AFTER the one talking about what x = if it’s x+2 greater etc., right?</p>
<h1>2 was guy working at 20 something/hour the other 25 something/hour. When combined try to make 1200? I got 27 i think (answer choice A)</h1>
<p>Wasn’t there one where you had to complete the square?</p>
<p>Another question was sphere with sum of volumes of 3 spheres with radius 3, 4, and 5. The radius of this sphere was 6.</p>
<p>I got 6 for the one where you had to solve for the base of the log</p>
<p>@Melzid
was that to find the center? I think it was -2,5 not exactly sure.
I remember like 4(x+2)^2 - 9(y-5)^2 = something
Im not sure if i remember the order though, i do remember the negative 9 though</p>
<p>@michael2013
Was question #2 the one about the stamping machines? I don’t remember what I got but if you solve 25x+20x=1200, you don’t get 27.</p>
<p>michael2013
(-2, 5) seems right, but I’m not sure because all the answers had 2’s and 5’s in them.</p>
<p>There was a question that had a product of four binomials < 0, where from the wording of the problem, you had to choose not the entire solution, but an interval that worked. Anyone remember what I’m talking about?</p>
<p>Can someone explain why the sum of the areas of the rectangles was 21.0 and not 15.5?</p>
<p>I believe it was between -1 and -2 for the interval</p>
<p>@Melzid
yes stamping machines
20x + 25x = 45x = 1200
1200/45 = 26.6666->27</p>
<p>ditto for armavirum’s answer</p>
<p>@humdumdum
"The question regarding 3n-1.
(sequence) came AFTER the one talking about what x = if it’s x+2 greater etc., right? "</p>
<p>What question are you referring to?</p>
<p>wasn’t the answer to the center question (2,5)?</p>
<p>@michael2013:
Why were you supposed to round the number of hours–I can’t remember?</p>
<p>@Melzid
I think it asks for the number of hours it takes to the nearest hour</p>
<p>@ccredd
If the equation was 4(x+2)^2-9(x-5)^2=36, then the center is (-2,5).</p>
<p>@michael2013
Thanks. I can’t really remember much about the early question, since I spent so little time on them…</p>
<p>Also, do you remember getting 2^16 as an answer to a recursively defined sequence problem?</p>
<p>yes, 2^16 sound right</p>
<p>Yes, 2^16 was the answer to the problem that was a(sub n+1)=2^a(sub n).</p>