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.
Variable
The symbol is called DELTA and looks like a triangle. -----> Δ <----
x or any other variable
In the context of algebra, "4d" would typically be considered a numerical expression rather than a variable. A variable is typically a letter or symbol that represents an unknown quantity that can vary, while a numerical expression is a combination of numbers and mathematical operations. In this case, "4d" represents the product of the number 4 and the variable "d," making it a numerical expression.
It is calibrating.
x= the unknown
x
Variable
A variable is usually used for that - for example, a single letter that represents the unknown quantity.
a variable
A variable.
veribal
In maths the symbols x and n are usually used to represent an unknown quantity. These may be referred to as a variable.
I believe it is because Q represents quantity
The symbol is called DELTA and looks like a triangle. -----> Δ <----
is called a variable or a literal constant, or informally an unknown.
That is called a variable. A letter is often used.