<p>slicerace - put your calc in radians mode - it works.</p>
<p>also, you used 1 instead of 7.87 for t. I think I accidentally put 1 second in my formula in previous posts but i think i edited them all out.</p>
<p>25cos(pi/10(7.87-3)) = 1 in radian mode. t = 7.87 seconds</p>
<p>I really messed up in this Math IIC test.... I should have concentrated more... T-T</p>
<p>oh well...</p>
<p>Anyone who has taken math2C before, compare this test in difficulty and, if you wish, give your raw score and weighted score. Thanks</p>
<p>anyone remember other questions?</p>
<p>can someone explain to me the flag questions. i don't rmember the question quite exactly. i do remember i put not all flags....something...</p>
<p>contrapositive a = b then -a = -b</p>
<p>first time for me to take the Math IIC, i was originally gonna take the IC. you guys forced me to make the right decision, i know i skipped 5, guessed on 3, 2 of them i got right. (according to posts on this thread)</p>
<p>Does anyone remember the answer to the one about polar co-ordinates?</p>
<p>problem #1 was 4/7
problem #2 was cube root of 10 or 10 point sumthing</p>
<p>there was a f(g(x))=1 or sumthing for values-that was g(x)=2</p>
<p>i got .8 for the probability 15/19- 19 possible sums-2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20
15 are greater than 5
how did u get .9?</p>
<p>anyone figure out that stupid arc length of chord i used the pidegree/360 * 2rpi but i cudnt find the stupid answer in the choices</p>
<p>one had to do with inverse of 2e i got like 3.74 or sukthin like that </p>
<p>maximum of sinxcosx-cant remember the answer cud just graph it tho</p>
<p>last question with absolute value-B-difference between x and -3 < 5</p>
<p>stem and plot graph-median i think it asked for i got 56 it was out of 9 numbers rite</p>
<p>anyone know if these questions are supposedly arranged in order of difficulty
it started easy til like 25 then stupid geometry problems and got easy after like 40</p>
<p>Does anyone remember the polar coordinates one? I think I put (13pi/4,1). But I wasn't sure. ??</p>
<p>altoids - The sums one I did a 10X10 grid. There are 10 sums that are less than or equal to 5 (some are repeated) and the rest of the sums are greater than 5 (90 sums - some are repeated). (90 sums greater than 5)/100 total sums = .90</p>
<p>For the length of the chord problem:</p>
<p>Central angle 106 degrees and radius length 5. Draw the central angle and the chord. Split that isoceles triangle with vertex angle of 106 into two right triangles. The hypotenuse of each rt triangle is 5, the angle with point touching the circumference of the circle is 37 degrees [(180-106)/2], and the split 106 angle is 53. Cos(37) = (1/2<em>chord length)/5. 1/2 chord length = 5</em>cos(37) = 3.99 Chord length = 7.98</p>
<p>what was the f(x)=e^2x... what's f^-1(2e)? I'm being paranoid now</p>
<p>The polar coordinates question was letter E, I dont remember the answer, just that it was E</p>
<p>What would be a possible scaled score for a 41 Raw score</p>
<p>Mag00:</p>
<p>f^-1 of e^2x:</p>
<p>y = e^2x
x = e^2y
ln(x) = ln(e^2y)
ln(x) = 2y
y=ln(x)/2</p>
<p>f^-1(2e) = ln(2e)/2 = .847</p>
<p>What would be a possible scaled score for a 41 Raw score?</p>
<p>780 maybe? lowest probably 770, most likely 780.</p>
<p>I gussed C for from 45-50. Anyone know if any of them were C?</p>
<p>Who else is glad there were permutation or combination problems? Or were there... hm....</p>
<p>how about the other ones that i listed above</p>
<p>some others:</p>
<p>standard deviation and range is same-range was 8 for each adn each point was 2 away from each so it means standard deviation was same</p>
<p>graph with f with discontinuties from -2>x>2 it was 4 adn 7 cuz they were the onyl points on the y-axis where the holes were</p>
<p>if anyone can remeber these questions plz post ur answer i thik i have to cancel how late can we do that</p>
<p>if i omitted 2 about how many can i miss for an 800?</p>