Is |x | = y - z ? (1) x + y = z (2) x < 0 I will post QA after some discussion. Basically we need to check if y-z > 0.From Stmt1: we do not have any info about the nature of x,y and Z.So, I is insufficient. From Stmt 2: X is negative.This does not indicate anything about y and z. Combining I and II...

I really need help with exponents and roots. Could someone please explain how for 1) a=b or -a=b I need some good help!! thanks! What is the value of a? 1) a^2=b^2 2) b-a=-12 From Stmt1: since a^2=b^2.We can conclude that a=b or a=-b.Since a negative number raised to a even power always yields a po...

With 2, Y can either be -8 or 14. Since, in (1) we know y>2, -8 can't be correct, so it has to be 14, which means both are required to be suff. In light of what you have explained about stmt1,stmt 2 shall also be always positive.How can it assume both positive and negative values?(-8/14). Sorry to ...

MGMAT CAT 5 DS 700-800

What is the value of y? (1) 3|x^2 – 4| = y – 2 (2) |3 – y| = 11 OA is C I am unable to comprehend that |x^2-4| > 0.And thus y-2 > 0.This is not clear to me.Why can't it be possible that y-2 < 0 as we do not know the value of x.Please explain.The source of the question is a MGMAT CAT.MGMAT staf...

can someone help with the exaplantion of each answer chocie If Points X and Y are two distinct points in the Coordinate Plane;which of the following can have more than one possible value? A.Circumference of Circle with diameter XY B.Area of Square with diagonal XY C.Perimeter of Right Isoceles Tria...

DS 121 OG 12

This Problem requires diagrammatical solution.Please help. In the xy-plane, region R consists of all the points (x, y) such that 2x + 3y = 6. Is the point (r, s) in region R ? (1) 3r + 2s = 6 (2) r = 3 and s = 2 Please provide an explannation to this one.Kindly,write the solutions such as they are c...

Circle C and line k lie in the xy–plane. If circle C is centered at the origin and has radius 1, does line k intersect circle C? (1) The x–intercept of line k is greater than 1 (2) the slope of line k is –1/10 ----- I figures out that the equation of the line should y=-x+1 ... but then could ...

Medical Researcher: As expected, records covering the last four years of ten major hospitals indicate that babies born prematurely were more likely to have low birth weights and to suffer from health problems than were babies not born prematurely. These records also indicate that mothers who had re...