You can really just think your way through this one. 1) is clearly insufficient to find the value of y because we cannot determine the value of x. 2) Because of the nature of absolute value equations this tells us that that there are two possible values for y. Insufficient. You know that 2) tells us...

To find the distance between point a and point b in a coordinate plane you use this formula.

Given two points (Xa, Ya), (Xb, Yb)

[(Xa-Xb)^2+(Ya-Yb)^2]

Hope that helps.

Thanks,

Jared

I'm going to have to go with [spoiler] C [/spoiler], although I'm still not 100% on this one. Reasons are as follows: 1. This, in a way, weakens the argument because it gives further evidence that it is still possible that volcanoes did cause this high concentration of iridium. 2. We're not concerne...

I believe this one is going to be A . The other two are possible but not necessary. Logically solved, for any average, if there is a point in your set of data that is above or below the average there must be a point(s) that is/are on the other side of the average. This is a property of averages. The...

First you should break down 12 into it's prime factors to see what sort of base numbers you will need to work with. 12=(2^2)(3). From the rules, if 12 is going to be in set K, it will need at least one 2 and one 3. Because with that you will also have -2 and -3. Thus, 2*-2*-3=12 or if 2 is in the se...

you are right. But what about 2 lines intersection and 1 line not intersecting any of those lines.... http://s4.postimage.org/u5oCJ.jpg please refer the pic. considering the square as the plane..these lines create 5 regions..right? what am i missing in logic..please throw some light on this :) than...

I'd say 5 sections or answer 3 . 4 and 6 should be easy enough. 4 sections being possible when 2 lines intersect with the other line overlapping one of the others. 6 sections being possible when all 3 lines converge at a single point, while not being parallel. 7 sections would be possible when the t...