Help, How to do x+y+z?

How to do x+y+z?

Permutations, Subject identification numbers in a certain scientific resear...

Subject identification numbers in a certain scientific research project consist of three digits followed by three letters and then three more digits. Assume repetitions are not all

Eguations, I dont really understand it can you help me

I dont really understand it can you help me

Linear combination(elimination), x-y=11 x+y=19

x-y=11 x+y=19

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

Work- rate problems, Actually these problems are variants of the Distance/R...

Actually these problems are variants of the Distance/Rate problems which we just got done working.  The standard equation which will be required for these problems is, As y

Word problems, Mr.Carr is installing wall-to-wall carpeting in a room that ...

Mr.Carr is installing wall-to-wall carpeting in a room that measures 12 1/2ft. by 9ft. How much will it cost Mr. Carr if he purchases carpet priced at $26.00 per square yard?

Standerd form, -4/2+3i

-4/2+3i

Vertical angles,

Q1, I have a 12.2 bottle of mustard. I use 1/20 of mustard per serving per ...

I have a 12.2 bottle of mustard. I use 1/20 of mustard per serving per hot doog. How much mustard do I have left after 4 servings of hot dogs.