Search the Community

For each positive integer n, the nth term of the sequence S is 1 + (-1)n Quantity A: The sum of the first 39 terms of S Quantity B: 39 I keep getting A = 40. 1 + (-1)^0 = 2 1 + (-1)^1= 0 1 + (-1)^2= 2 1 + (-1)^3= 0 and so on...so term 1 + (-1)^39 = 0 and the sum of the first 39 terms is 1 + (-1)^38 = 2 so the sum from 0 to 38 = 40, so B is greater. EXCEPT the answer is A. Can anyone explain my error? Thanks.

Hey, I was wondering if someone could help me out with these Powerprep 2 Questions that I encountered. Reading Comprehension A portrait type that appeared with relentless frequency in eighteenth century England is the image of a gentleman poised with one hand partially inside his unbuttoned waistcoat. Standard interpretations of this posture offer observations of correspondence-demonstrating either that it mirrors actual social behavior or it borrows from classical statuary. Such explanations, however, illuminate neither the source of this curious convention nor the reason for its popularity. It was true that in real life the "hand-in" was a common stance for elite men. Still, there were other ways of comporting the body that did not become winning portrait formulas. And even if the "hand-in" potrait does ressemble certain classical statues, what accounts for the adoption of this particular pose? Q1.Which of the following might provide an explanation for the popularity of "hand-in" portraits that would satisfy the author of the passage? a. An eighteenth century English etiquette manual discussing the social implications of the "hand-in" stance. b. A comprehensive catalogue of eighteenth-century English portraits that showed what proportion of portraits depicted gentleman in the "hand-in" stance. c. A passage from an eighteenth-century English novel in which a gentleman considers what stance to adopt when his portrait is painted. Answers: a and c ( I don't see why c is an answer to this question) Text Completion Q2. Although grandiose urban railroad stations are often viewed as glorious monuments to their cities, they in fact ________ the cities by enabling the migration of city dwellers to the suburbs. a. Invigorate b. Enlarge c. Enfeeble d. Delineate e. Overshadow Answer: c ( I see that the use of in fact, suggests that the word is negative. What I don't get is how the railroad stations can "enfeeble" a city?) Also, I would be grateful if somebody could provide details as to how they went about doing Q6 (The one with the Octagon) of the 2nd Maths Section ( i.e. Section 4 of the test). Cheers!

Hi all, ETS has just released POWEPREP II version 2.0. This new software offers two free GRE practice tests (instead of just one as was the case with the old POWERPREP II software). At Manhattan Prep we just wrote a blog post with info on the new software, and some updates on the ScoreSelect program (which just went into effect this weekend as well). You can find all of our thoughts here: GRE News: POWERPREP II v 2.0, ScoreSelect, and the new Retake Policy | Manhattan Prep GRE Blog If you have any questions, please let me know. Best, Taylor

Hello everyone, Here is a link to 80 video explanations to the Quantitative/Math problems in the Official PowerPrep II software for the Revised GRE. GRE Quantum - grepowerprep In PowerPrep II, the first math section, which is Section#3, is identical for all the students. Depending on how you do on that section, the difficulty level of the second section(Section#5) will vary. The software has three options for Section#5, I have labeled them Easy, Medium, and Hard. To identify which of the three variations of Section#5 you were administered, look at you first question and use it to identify the appropriate set of video explanations. Feel free to send me feedback or questions. Cheers, Dabral