» CC HOME » FORUM HOME

 College Confidential Math question Help
 User Name Remember Me? Password New User

Welcome to College Confidential!
The leading college-bound community on the web
Join for FREE now, and start talking with other members, weighing in on community polls, and more.

Also, by registering and logging in you'll see fewer ads and pesky welcome messages (like this one)!
 Discussion Menu »Discussion Home »Help & Rules »Latest Posts »NEW! CampusVibe™ »Stats Profiles Top Forums »College Chances »College Search »College Admissions »Financial Aid »SAT/ACT »Parents »Colleges »Ivy League Main CC Site »College Confidential »College Search »College Admissions »Paying for College Sponsors SuperMatch - The Future of College Search! CampusVibe - Almost As Good As A Campus Visit!
 08-07-2011, 08:25 AM #1 Junior Member   Join Date: Jul 2011 Posts: 112 Math question Help I have forgotten how to do this. I recall the formula, but we went over it a week before the final so I was not paying 100% attention to learning it as I was to getting all the information I accumulated back and ready for the exams. something like N(term)=N+1(something) and there are different ways to manipulate the formula, but I am guessing you only need basic sequence knowledge for the SAT. I am only concerned with getting a better SAT score right now. In a certain sequence where the numbers are increasing, the difference between consecutive terms is always the same. If the fourth term in the sequence is 19 and the eleventh term is 47, what is the first term in the sequence? (A) 1 (B) 3 (C) 7 (D) 8 (E) 11 won't give away answer so you guys have some fun without spoiling it Reply
 08-07-2011, 08:31 AM #2 Junior Member   Join Date: Jul 2011 Posts: 112 If a not equal to 0 and 5 over x = (5 + a) over (x + a), what is the value of x? (A) negative 5 (B) negative 1 (C) 1 (D) 2 (E) 5 another one for you..answer for first one later though Reply
 08-07-2011, 08:54 AM #3 Member   Join Date: Aug 2011 Posts: 360 do you want the answers ???? there pretty easy Reply
 08-07-2011, 09:20 AM #4 Junior Member   Join Date: Jul 2011 Posts: 112 Figure Note: Figure not drawn to scale. The figure above shows a right circular cylindrical wheel of cheese 2 inches high from which a wedge weighing 1 over 2 pound has been cut. All cuts are perpendicular to the base and radiate from points B and C, the centers of the circular top and bottom. What is the weight, in pounds, of the original uncut wheel? (A) 2 (B) 3 (C) 4 (D) 6 (E) 12 I'm sure some where there are these exact same questions.. I am doing an online skills insight on the collegeboard website. but still I do not understand this one either..guess i'm really rusty after the summer the cut would be 30 degrees according to the figure not shown.. 30 out of 360 or 12% of the whole thing. But using 12% did not get the right answer for me so I am stuck Reply
 08-07-2011, 09:23 AM #5 Junior Member   Join Date: Jul 2011 Posts: 112 yea i would like the answers, and an explanation..the only thing these questions do not have is an explanation... by the way, if you want to make fun of how easy they are. maybe you should use the right words to say so. They are or they're not 'there' Reply
 08-07-2011, 10:53 AM #6 Junior Member   Join Date: Jul 2011 Posts: 112 In the coordinate plane, the points F (negative 2 comma 1), G (1 comma 4), and H (4 comma 1) lie on a circle with center P. What are the coordinates of point P? (A) (0 comma 0) (B) (1 comma 1) (C) (1 comma 2) (D) (1 comma negative 2) (E) (2.5 comma 2.5) these have plagued me quite frequently.. If anybody has a quick answer to this, It would be much appreciated. In honors algebra 2 we went over this extensively but I have forgotten the formula. Besides, there has to be a quick way to answer these sort of problems at least one will be on the sat itself Reply
 08-07-2011, 05:06 PM #7 Member   Join Date: Aug 2011 Posts: 360 well i am not making fun i am really sorry if you misinterpreted me , my grammar skills are really rusty(always been) but i guess the first question is 7...... Is that the answer ???? Reply
 08-07-2011, 05:12 PM #8 Member   Join Date: Aug 2011 Posts: 360 Guess 2nd one is 5...... Is this correct ????? Reply
 08-08-2011, 01:45 AM #9 Junior Member   Join Date: Jul 2011 Posts: 112 I thought you said you knew how to do them? oh well, yea I guess we both should relax a little these are from the Skills Insight on the sat website, but without answer explanations to them anybody with explanations is welcome to help out. Usually these type of questions tend to get answered quickly. the first one is 7 and the other is 5 but how? I have seen some great explanations on this site and they always make other questions even easier. Help would be much appreciated Reply
 08-08-2011, 09:32 AM #10 Member   Join Date: Aug 2011 Posts: 360 well I took the fouth term 19 and eleventh term 47 then i made an equation 19+7x=47 I chose 7 because it is the difference between 4th and eleventh term (places) x=4 then I subtracted 19-12 as difference between 4th and 1th term is 3 places = 7 Reply
 08-08-2011, 09:36 AM #11 Member   Join Date: Aug 2011 Posts: 360 (5/x)=(5+a)/(a+x) I multiplied 5 by a+x and x by 5+a,... 5a+5x=5x+ax 5x cancels out 5a=ax (a/a =1) 5=x Reply
 08-08-2011, 09:37 AM #12 Member   Join Date: Aug 2011 Posts: 360 3rd cant help you need to see diagram..... Im really bad at imagining diagrams Reply
 08-08-2011, 09:47 AM #13 Member   Join Date: Aug 2011 Posts: 360 4th is B .... Is this correct ??? Aint really sure working on another way to find the solution. Reply
 08-09-2011, 07:01 PM #14 Junior Member   Join Date: Jul 2011 Posts: 112 Thanks man, sorry for how the questions looked. I have trouble with screenshots, so I just C&P but it ends up changing what I write to a bit more confusing language. I think the 4th on is B. Reply
 08-09-2011, 07:04 PM #15 Member   Join Date: Aug 2011 Posts: 360 no prb happens to me all the time(grammar idiot) do you want my reasoning on why 4th is B or do you have a good one??? Reply

 Bookmarks