Official October SAT Math Discussion

<p>CAN any of you answer these questions?</p>

<ul>
<li>Did you get 87 for largest angle in the grid ins</li>
<li>did you get 165 for the minutes questions i think it was 16 on grid ins </li>
<li>HOW DO YOU SOlve the question with what is the maximum perimeter??? number 19
Anyone?</li>
</ul>

<p>for the </p>

<p>f(1) < f(2)
f(4) < f(5)</p>

<p>was the last one</p>

<p>f(7) < f(9)</p>

<p>or f(7) > f(9)</p>

<p>What was the anser to that problem ^^^???</p>

<p>@snoop correct thats what I got</p>

<p>the perimeter one, the other two sides were 12 and 5 so the third side had to be</p>

<p>7 < s < 17</p>

<p>and the greatest is 16 so 12+5+16 = 33</p>

<p>@eagles94 what was the answer to that problem?</p>

<p>@Snoop1, yes it was 87, be more specific, Triangle inequality theorem.
@eagles94, f(7) > f(9)</p>

<p>What did you get for the one with f(4) < f(5) …?</p>

<p>Snoop those are all correct. </p>

<p>For the largest perimeter are you talking about the one where the answer was 33? It was a triangle with sides 5 and 12 and it asked for the largest perimeter. The last side had to be 16 making the perimeter 33.</p>

<p>Thanks, btw what did you guys get for the problem eagles94 describes above?</p>

<p>so for the one thats 9/22… would .409 be acceptable? i really hope so</p>

<p>@snoop1</p>

<p>yeah i got 87 for sure. don’t remember the other two, though.</p>

<p>@InterestedToKnow, yea, thats fine.</p>

<p>Did you guys get all the above for this problem?
f(1) < f(2)
f(4) < f(5
f(7) > f(9)</p>

<p>Anyone? did u guys get all the above (E) for the problem with the graph and asking something like this
f(1) < f(2)
f(4) < f(5
f(7) > f(9)</p>

<p>Can someone describe the 165 minutes question, please?</p>

<p>EDIT: Nevermind, I checked my TI-89 and got 165 as well.</p>

<p>Phone company A charged .1$ per minute.</p>

<p>Phone company B charged .07$ per minute + a $4.95 monthly fee.</p>

<p>Find the # of min so that the prices are equal for one month.</p>

<p>.1n = .07n + 4.95
.03n = 4.95
n = 165 minutes</p>

<p>I’ve explained that question more than five times. The explanation is ok the page 27. The answer is 54.</p>

<p>@StudiousMaximus, what question was that???</p>

<p>^ See yankee’s post.</p>

<p>Yea, remember now, I got that too. Just plugged it into a calculator :stuck_out_tongue: and found intersection.</p>