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If you are talking about math then its usually " x " but if that is already use in the expression and you want to use another symbol to represent a DIFFERENT number then you can use y or a or so on.
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∙ 11y ago
Jasmine Blades
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What represents an unknown or changeable value?
In mathematical expressions, a variable (a letter used to represent a certain value) represents an unknown or changeable value. It is often the variable x.
A letter used to represent a value?
a variable
What is a letter used to represent a numeric value in an expression or an equation?
It can be any letter of any alphabet: Roman, Greek.
What is equal to X?
In an equation "x" is the value assigned to one of the unknown quantities in the equation. (example: y= mx+b). X is often used to describe any unknown thing, as in x-ray which were named this because the nature of the ray was initially unknown.
What is the mathematical symbol for average?
The mathematical symbol for average is sometimes denoted by putting a line above the variable, like this: _ X The "Expectation value" of a random variable - is like a weighted average. E[X] or <X> or the Greek letter mu (µ) - are a few of the common symbols for the Expected Value of X. A random variable may, for example, represent your high school grades for each course taken, where each course has a different weight. The expectation value would be your weighted average of high school grades.
What is a place holder usually a letter used to represent an unknown value called?
variable
What represents an unknown or changeable value?
In mathematical expressions, a variable (a letter used to represent a certain value) represents an unknown or changeable value. It is often the variable x.
What vocabulary term means a letter or symbol that represents an unknown or changing value?
Variable.
What is numeric x in statistics?
In statistics, letter such as; a,..x..,z, is a variable used to represent an unknown value.
What is electrical symbol is used to represent current?
The electrical symbol for a continuous or r.m.s. currentis an italic, upper-case, letter I. The symbol for an instantaneous value of current is an italic, lower-case, letter i.The symbol for its SI unit of measurement, the ampere, is an upright, upper-case, letter A.
What is the placeholder used to represent an unknown value?
Varible
What is variblle?
A variable is any letter or other symbol that is used to represent an unknown number. "x" is the most commonly used variable, with y, z, n, a, and b also being prevalent. The objective of algebra is usually to find the value of a variable.
What symbol represents value or value creation?
There are an infinite number of symbols that can represent value or value creation. You could use a bird as a symbol for example.
What does the symbol Δ mean?
Delta - Its the fourth letter of the Greek alphabet, and it is often used in mathematical expressions to represent the change (i.e. the delta) that occurs to a value.
A letter used to represent a value?
a variable
What is the purpose of symbol of infinity?
To express the idea of infinity.
What kind of symbol that is usually letters which represent a value or a number?
It is an algebraic variable.
