divya.yadav

@1. Let l = length of the garden w= width off the garden we know 2(x+y) = 560 i.e perimeter of the garden alse we know (x^2 + y^2) = (200)^2 since 200 is the diagonal length and we need to find x*y = ? i.e. area of the garden. (x^2 + y^2) = (200)^2 =>(x+y)^2 - 2xy = (200)^2 since x+y = 280 (280)^2 - (200)^2 = 2xy (280+200)(280-200) = 2xy xy = 19200 ft sq. @2. Question is not very clear an area of 4 times rt of 3 inscribed in it??????????? @3. Since I am not able to draw the figure for this.... please bear with me :) We have an isosceles right triangle with area of 144. let l = b = base and height of the triangle h = hypotenuse of the triangle 1/2 * l *l = 144 l = Sqrt(288) since i = b on calculating for h^2 = l^2+b^2 h = 24(this is one side of the rectangle) Since the traingle is tightly coupled with the reactangle rectangle width = length of perpendicular dropped on the hypotenuse of the triangle. rectangle width = 12 therefore perimeter of rectangle = 72. I hope i was helpful P.S. any idea how to paste images while answering in forum

@problem 1 If 'c' is a positive integer then through substitution c = 4. and thus both col A and col B are equal. @problem 2 Substitute x = 0 to get y>-1 and substitute y =0 to get x Equation 3x-y P.S. Is it possible to draw some figures in this forum to explain certain questions.

http://www.www.urch.com/forums/gre-math/105418-normal-distribution-questions.html

@Usctrojan are the option like this ? Column A: (2x)^2-y^2 Column B: x^2-(2y)^2 ????????????????

Formula for compound interest: http://upload.wikimedia.org/math/5/d/1/5d1a79e9cd23c806a46cfcff63d745bb.png Where, P = principal amount (initial investment) = $4000 r = annual nominal interest rate (as a decimal) = 7/100 k = number of times the interest is compounded per year = once a year (1) t = number of years = 3 A = amount after calculation from above formula is $4900.17 I = Interest = $900.17Although compund interest question will always mention how they are compounded (quarterly or once a year etc.)

These are very direct questions we need to remember this formula. Formula for calculating compound interest: http://upload.wikimedia.org/math/5/d/1/5d1a79e9cd23c806a46cfcff63d745bb.png Where, P = principal amount (initial investment) r = annual nominal interest rate (as a decimal) k = number of times the interest is compounded per year t = number of years A = amount after time t

Rise in water level (volume of risen part) = volume of rectangular block immersed in the fluid i.e. (22/7) * (radius)^2 * (rise in level) = (x)*(volume of cube) where x is the fraction of block immersed in fluid. on solving x = 22/7 * 24/35

Interest would be 900.17 if its compounded yearly once.

Hi David I have my GRE score, can I use them to apply for Buissness Schools? Thanks

Thanks qwarentine and vv134 :)

MILK : EXTRACT a) squander:enjoy b) exploit :utilize c) research: investigate d) hire : manage e) wheedle : flatter I am confused b/w b and c ?

Its lengthy calculation.

Hi I am planning for GRE in 2nd week of October, Is this very late for the Fall 2009.