Age Problem, The sum of the ages of Dorothy and Dona is 41. In 5 years, Dor...

The sum of the ages of Dorothy and Dona is 41. In 5 years, Dorothy will be twice as old as Dona. Find their age 3 years ago.

Finding coordinates, (2,9);y=3x-1

(2,9);y=3x-1

Factoring, ac + xc + aw^2 +xw^2 i need to factor the problem above

ac + xc + aw^2 +xw^2 i need to factor the problem above

Unitary method, What are the pre conditions to applying unitary method to a...

What are the pre conditions to applying unitary method to a given problem? e.g. We know that 37 degrees celsius is equal to 98.6 degrees fahrenheit, but 1 degrees celsius is not eq

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

Mathematical definition absolute value equations, We can also indicate a st...

We can also indicate a strict mathematical/formula definition for absolute value.  It is, It tells us to look at the sign of p & if it's positive we just drop the absolute

Parallel, (5,7;y=1/3x+2

(5,7;y=1/3x+2

Compound inequalities.., Graphing and solving compound inequalities?

Graphing and solving compound inequalities?

Multiply, Multiply 2(b + 5)

Multiply 2(b + 5)

Boolean,