A variable
x or any other variable
In mathematics, a symbol that represents an unknown quantity is typically denoted by a variable, such as "x" or "y". These variables are used to represent values that are not yet known or are subject to change. They are commonly used in algebraic equations to solve for the unknown quantity based on given information or conditions.
Unknonwn quantity is any variable a,b,c or x,y
Delta as a mathematical symbol usually means "change". It's usually used the same way in physics and chemistry, though it's sometimes used in chemical equations to represent heat.
A variable
It is called a variable.
It is called a variable.
Variable
The triangle symbol that means change is called the delta symbol. It is commonly used in mathematics and science to represent a change in quantity or 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.
The symbol used to represent change in an equation is Δ (delta). It indicates the difference or change between two values.
The symbol used to represent the word "which" is typically "?".