Geometry, The length of a rectangle is twice it''s width. If the length of ...

The length of a rectangle is twice it''s width. If the length of its diagonal is 16root5 cm, find its area

Student, the weight of a body above the surface of earth varies inversely w...

the weight of a body above the surface of earth varies inversely with the square of the distance from the center of the earth. if maria weighs 125 pounds when she is on the surface

Quadratic expressions, x2+4x-21

x2+4x-21

Rational expressions and fractional equations, 9x^2/-4x^3y^4 x 16x^4y^2/25x...

9x^2/-4x^3y^4 x 16x^4y^2/25xy

Finding the distance betweem pair of points, (14,20) and (-15,3)

(14,20) and (-15,3)

Quadratic equations, if the roots of a quadratic equation are (-2+sqrt 6) a...

if the roots of a quadratic equation are (-2+sqrt 6) and (-2-sqrt 6), what is the equation in ax^2+bx+c=0 form?

Complex number, let x,y,z be the complex number such that x+y+z=2,x^2+y^2+z...

let x,y,z be the complex number such that x+y+z=2,x^2+y^2+z^=3,x*y*z=4,then 1/(x*y+z-1)+1/(x*z+y-1)+1/(y*z+x-1) is

Boolean,

Solving quadratic functions, Sum of two numbers is 10 and their multipicati...

Sum of two numbers is 10 and their multipication is 21,find the two numbers. x^2 -10x +21=0

Equations, solve the system of equations using the substitution method. y+5...

solve the system of equations using the substitution method. y+5x=10 -10x+3y=5