maybe I am wrong, but...

when you plug in k=1, you get 1/2. as k increases shouldn't the value of the formula decrease? Hence the answer will never be more than 1/2 so you can eliminate any answer choice that doesn't fit that parameter. Or am I wrong in using that technique?

square roots & decimal

Ran across a problem similar to this and wanted to know if anyone had a "trick" to answer this type of question? Q: What is the approx value of sqrt[(.81) + (.05) + (.72) / (.003)]? There is no answr solution but I'd like to know a fast method for solving questions types like this (i know ...

adding exponents is tricky but I believe that if the bases aer different yet the exponents ar the same, then you can simply add the bases together but will need to keep the exponenet the same. in this question 13-14-15-16=58. being that you are dividing by 58, there will be no remainder (58^7/58 = 5...

not sure about this one but...

2N=5A-3 only when A is an odd integer. Thus the first 20 values of N will be from 1, 6, 11, 16, 21, 26, 31, 36, 41, 46, 51, 56....96.

therefore the median will be the avg of two middle terms (since there are an even amount of numbers). 46+51/2 = 48.5

from 530 to 570 to...

I've been on thsi forum as a visitor for a few months before I actually joined. I've seen some incredible stories and I've seen some similar to my own. I've taken the test twice and will be retaking it on 4/10/09. In my last three practce exams I score 560 (GMAT), 630 (Kaplan), and 570 (GMAT). My sc...

can we assume that the rate is constant? after all it could be drizzling for an hour, rain harder 3 hours later, etc. so just because there's 40% more rain coming does that mean 40% in volume or 40% in terms of time?

I'd go with E but this is a real thought provoker

S1 isn't SUFF. in the equation x < y +1, if x = 3 then y could also equal 3 because 3 < 3 +1 (INSUFF)

similar structure in S2. so my answer would be E
**remember, both x & y are positive numbers**