a HUGE tip that will raise your SAT math score 10-20 points (really)

Test Preparation
41

<p>"P796, #20."</p>

<p>You do not need trig. First, all 5 lengths are equal:give them a value then. I chose 1, but you can chose "x" or "z" or "50". </p>

<p>1)So triangles ABD and DBC are congruent, first of all (SSS.) Same with triangles ABC and ADC (SSS.)<br>
2) Since triangle BDC's sides are all equal, that means all angles are equal. Each angle in triangle BDC is equal to 60.
3)Since BDC and ABD are congruent triangles, angle DBC and angle ABD are equal; angle DBC + a ABD = 120. So angle ABC is =120. When you look @ triangle ABC, you will notice that it is isosceles. So if ABC is 120, angle BAC and angle ACB will be equal and therefore each will be 30 degrees.
4)So, the question asks the ration between the length of AC (which we will find next) and BD (we have given this the value "1".)
5) We already know that angle ABD is equal to 60.
6) Since line BD bisects angle ABC and CDA, we know that it is perpendicular to AC. So angle AEC (E where the two diagonals intersect) is 90. We then know that triangle AEB is a 30 60 90 triangle.
7) Thats all you need to know; AB is equal to 1, BD must be equal to 1/2, AE must be equal to 1/2rad3. If AE is 1/2rad3, then AC must be 2 times that, or just rad 3. we know that BD is one. So there we go, the ratio is rad3 to 1.</p>

42

<p>Well thanks alot Ildjing. All I can say is thank God I know trig.</p>

<p>I really dont think you need to write a list for primes. I instantly recognize primes among the first 50-75 numbers and that is plenty more than CB tests you on. If you can easily identify primes, you dont need it.</p>

43

<p>The prime numbers thing isn't cheating. The dictionary thing is.</p>

44

<p>well about the dictionary. Take a blank indexcard and when the proctor gives u the testbook, quickly slip the indexcard under the booklet. When u come to a verbal question that u don't know, write down the question number and the whole question onto the notecard. During break or the math sections, look up the word in the calculator dictionary. Since u have the question number written down on the index card, you can directly fill in the correct answer on the answer sheet without flipping back in the booklet.</p>

45

<p>that's CHEATiNG</p>

46

<p>icyfire,</p>

<p>seriously man, that's unethical.</p>

47

<p>and pretty lame..just take them on your own, it's the SATs...don't you wanna know that you earned your SAT score...</p>

48

<p>No, let him try some $--- like that and just laugh as he gets ejected from the test center.</p>

49

<p>This is sorta interesting. It deals with prime numbers, and who discovered the largest one so far up to date, which is 225,964,951-1 by Dr. Martin Nowak from Germany.

[quote]
The Electronic Frontier Foundation is offering a $100,000 award to the first person or group to discover a ten million digit prime number. If you find such a prime with the software provided, GIMPS will claim the award and distribute the award according to the following rules.

[/quote]

[color="#00008b"]You can find the site here[/color</a>]</p>

50

<p>Yeah,, I would say that is definately cheating..
You are not allowed to have index card nor use your calculator for verbal section..
Seriously, if you just wanna go to a "big name" college even if you have to cheat on sat like that, why don't u just steal big amount of money and grant it to the college so that u will definately be accepted?</p>

51

<p>rami go try and steal 200 grand, hehe. There is a pretty low chance of getting caught. It is cheating though.</p>

52

<p>With all of the mental energy you guys are investing into this little way of outwitting the test, you can easily raise your math score by 50 points. While you are sitting here obsessing about the one (if there is one) prime number question on the exam, you are losing 50 other points by not studying other types of questions. You DON'T need a prime number program on your calculator. You will miss the question not because you don't know the prime numbers, but because you miss the logic of the question (as long as you know the definition of a prime number). And I'm speaking as an SAT tutor.</p>

53

<p>Agreed with reply #52. This is a small potatoes worry. Do more math problems IN GENERAL and your math score will rise. Similarly, read more and your verbal score will rise. Turn off the TV if you are in doubt about how to spend your time.</p>

54

<p>yep i agree it is cheating. It was just an idea to ponder tho. But anyways, what if you somehow memorized the question and then looked it up. Would you be fully within your rights to change the answer then?</p>

55

<p>You're not allowed to fill in or change answers for any section after you've finished that section.</p>

<p>Bottom line: don't risk it. If you get caught cheating, no major college will accept you.</p>

56

<p>Godot and tokenadult, </p>

<p>You are tutors and token adults, respectively. I am an SAT-taking student. I got 1520 the first time and 1580 the second time. I got 1580 because I missed exactly two problems. I missed both because I omitted a prime when listing them during the test. </p>

<p>Godot, we didn't say we were "outwitting the test". Not even close. But I'm sure you "as an SAT tutor" know full well that time on the SAT is as important as time in an athletic race: every second, and fraction of a second, really does count. Furthermore, you as a sensible adult (presumably) no doubt know that it takes about one minute to list a handful of primes in one's TI. It also takes about one minute to post on CC. So you'd say that by spending these three or four minutes programming and typing, we are losing fifty points? Fifty? You sure? Not twenty, thirty, but a full fifty? Gotcha. (Do keep in mind that most people consider CC'ing a component of their leisure time, not their studying time.) Oh, and you <i> as an SAT tutor </i> surely were kidding when you said "one (if there is one) prime number question". I don't suppose you've opened Ten Real recently? I don't suppose you were there at the most recent SAT, when there were at least five questions on primes? Furthermore, you say, "You will miss the question not because you don't know the prime numbers, but because you miss the logic of the question." Well, I am living proof that you're wrong, as are several of my friends, who made the same mistake. By the way, by your logic, you, too, should be doing something more productive than posting on a college message board for high schoolers. But I suppose it's all a matter of priorities ;) </p>

<p>Token adult--if you consider time during the SAT a small potatoes worry, I don't know what in college admissions you consider a big potatoes worry. I repeat, writing a rudimentary program for TI (oh wait, I just meant entering it, seeing as there is only one line of code which has been written for you) takes about one minute--probably one-fifth as long as it took you to write your post (and with those five minutes God knows you should have been reading!)</p>

<p>Sincerely,
claret quilty</p>

<p>First score: 800V 720M
Second score: 800V 780M
Further: 800 Math IIC, 800 Writing</p>

57

<p>To the people with their "I got an 800 without" stories: we are all proud of you.</p>

<p>However.</p>

<p>We are not you, and need all the extra help we can get. We wouldn't be posting something like this if we could all go and breeze an 800 without worry. I don't necessarily agree with programming these things in (though I do it, sometimes, when the situation warrants -- still, if the SAT doesn't allow you to bring in paper notes, why should having notes in a calculator be allowed?), but the IDEA is there, and you're not helping much by insinuating various things about YOU and YOUR experience and how everyone else should feel because of it.</p>

58

<p>P.S. Godot--</p>

<p>" With all of the mental energy you guys are investing into this little way of outwitting the test, you can easily raise your math score by 50 points. "</p>

<p>Easily? Goodness me--you should write infomercials! In the meantime, please tell me how. I'd love to raise my own math score (780) by 50 points and you tell me I can do it easily with simply the amount of mental energy it is taking me to write this. WOW!</p>

<p>You sound like one hell of a tutor. I need to employ you. Can I get your number? </p>

<p>("raise your sat score! what are you waiting for but godot?")</p>

59

<p>dictionary is cheating. Dude, prime numbers could be killers. I'm known to just list out these numbers for 3-4 minutes trying to find the solutions on some practice tests. Haven't seen one problem like it on a real one though. (at least not that I can remember.)</p>

60

<p>I memorized enough prime numbers at an early enough age to get past what is, after all, always a multiple-choice question that I don't see there is any real concern here. People who want to impress an admissions officer with math scores use the AMC</a> tests anyway. </p>

<p>P.S. I have coached an eleven-year-old to an 800 on the SAT I math section (with some help from math teachers I helped find for him, of course) so I'm really serious when I say that this tip overstates its usefulness.</p>