It is called a variable.
variable
In maths the symbols x and n are usually used to represent an unknown quantity. These may be referred to as a variable.
Yes. Although it can also be used for constants whose value is not yet known.
No, there is not.
The symbols used are called variables.
A variable
It is called a variable.
Variable
x or any other variable
variable
a variable
In maths the symbols x and n are usually used to represent an unknown quantity. These may be referred to as a variable.
An elipsis or * * * is used to present a change of scene.
X is the symbol for multiplication, as in 2X2=4 X (or any other letter) is often used to represent an unknown quantity.
In maths most vairables are represented with letters. EG. A+B=C So for a best guest and in this case i would say X would be the best for an unknown variable that could change, as x is normally associated with many unknowns.
A God's symbol is what is used to represent them.
The symbol that is used to represent a joule is the letter "J". This is a derived unit of energy. It can also be used to represent work, and an amount of heat.