<p>.2(75+.15n)</p>
<p>dzair
I used Law of Cosines for that one: two sides of the triangle were radii of length 1 and the angle between them was theta, so chord AB= sq rt(1^2+1^2-2<em>1</em>1*cos(theta))=sq rt (2-2cos(theta))</p>
<p>thanks ahua, the f(2x)= 3x^2 question was find f(x) given g(x) i think where the answer came out to be whatever the given equation was, /2. you had to then multiply by .5 to get the answer equal to f(x) instead of f(2x). the answer was the only one with 4 in the denominator i think</p>
<p>Thanks, GoodAtMath. That’s what I got, too.</p>
<p>There was also one with lim as x –> infinity of (3x+#)/x, which is 3</p>
<p>hiking, i believe the answer was 2. and did we come to a conclusion on the post office one? is it .4? that seemed too obvious to be an answer</p>
<p>Question about a rectangular solid with base diagonal root(85) and height 3. What’s the length of the longest diagonal? </p>
<p>Answer: root(94)=9.7</p>
<p>to collegebound: it must have been (2x+#) in the numerator then…Do you remember?</p>
<p>yeah it was like 2x + #</p>
<p>what was the one where you had to equate the abs values? and whats 5 skipped and 3 wrong give me? 780?</p>
<p>what was the least square regression line one?</p>
<p>one question had 0.8 or 0.9 as the answer. was it 0.8?
(sorry i can’t be more specific)</p>
<p>^least square regression was like 190 i think</p>
<p>and yes to nspiredone</p>
<p>is it just me, or was this test more difficult than previous ones?</p>
<p>lim as x –> infinity of (2x+#)/x, which is 2*</p>
<p>not sure about the post office…
all i remember:
A: __ miles away, 10km/h south (?) and moving towards
B: 2 miles away, 5km/h east and moving away
List of testable points, wouldn’t the closest be the triangle formed with the shortest hypotenuse?</p>
<p>.9 i think, it was the probability q, I just looked at it and was like, this cannot be lower than .9</p>
<p>and yes least square regression was 190.</p>
<p>Hypothetical scores chart (actual curve varies) because people are apparently inept at using google: </p>
<p>raw score = correct - 1/4(wrong) + 0(skipped)</p>
<p>scale|raw
800 50 770 40 680 30 590 20<br>
800 49 760 39 670 29 580 19<br>
800 48 750 38 660 28 570 18<br>
800 47 740 37 650 27 560 17<br>
800 46 730 36 640 26 550 16<br>
800 45 720 35 630 25 540 15<br>
800 44 710 34 630 24 530 14<br>
800 43 700 33 620 23 520 13<br>
790 42 690 32 610 22 510 12<br>
780 41 680 31 600 21 500 11 </p>
<p>(:</p>
<p>can anyone explain the base diagonal one?</p>
<p>I believe the post office question was 24. However the probability question was a puzzler for me. I thought the probability of getting a sum of two numbers greater than five was .8</p>
<p>i skipped the .8/.9 on the test and just did it now, i got 79/100 possible options, which rounds to .8</p>