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These variables are just that...variable. They are unknown values and used to symbolize this. They can be anything .. unknown. And in science and math you need to sovle for them in the equation they are used...
Math... x, y and z are commonly used. For graphing solutions to equations there are three dimensions where x is lehgth, y is width and z is height although they could have other means.
3 + x = 9 Solve for x....
x = 6
Or...
x + y = 12 Where x = # of boys and y = # of girls at a party. z = total people at the party. These equations are used in word problems for example.
But in Math the variables are assign what they represent even though their value is unknown, as I listed above with the x = # of boys for example.
In Science variables are used to sybolize the scientific principles making to easier to remember what you need to calculate the equation. Take Physics for example. To determine Force, the equation is F=mA where...
F= Force
m= mass of item involved in the force
A= Acceleration
Units of measure must be in the same measurement system, e.g. metric Force is in Newtons, mass is in grams and acceleration is in meters/time (seconds) squared.
What is the Force of 3 grams of granite traveling at an acceleration of 9.8 meters/sec/sec?
F=mA....plug in the values... F=(3)*(9.8) = 29.4 Newtons
All variables all can stand/represent for something.
In science you can use x, y, and z to represent variables too.
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What is the variables in x23 plus 6-y?
The variables are x and y
What is y equals 14-x?
It is a linear equation in the variables x and y.
What is the equation for rate?
Given two variables, X and Y, the rate of X relative to Y is X/Y.
What are examples variables in a equation?
Y = 2X Variables are X and Y If X = 2, then Y = 4 If X = 3, then Y = 6 and so forth. If you vary one then he other changes. Their values are variable.
What is an Example of two independent variables?
Variables are symbols that replace unknown numbers. Variables are often letters. For example: 5*x=10 7*6=y Here "x" and "y" are the variables.
What is the variables in x23 plus 6-y?
The variables are x and y
What is joint probability function?
The joint probability function for two variables is a probability function whose domain is a subset of two dimensional space. The joint probability function for discrete random variables X and Y is given aspr(x, y) = pr(X = x and Y = y). If X and Y are independent random variables then this will equal pr(X =x)*pr(Y = y).For continuous variables, the joint funtion is defined analogously:f(x, y) = pr(X < x and Y < y).
What is function joint?
The joint probability function for two variables is a probability function whose domain is a subset of two dimensional space. The joint probability function for discrete random variables X and Y is given aspr(x, y) = pr(X = x and Y = y). If X and Y are independent random variables then this will equal pr(X =x)*pr(Y = y).For continuous variables, the joint funtion is defined analogously:f(x, y) = pr(X < x and Y < y).
What values do we plot on the y axis in science?
In science, we often plot dependent variables on the y-axis. These are the variables that are being measured or affected by changes in other variables. The y-axis typically represents the response or outcome of an experiment.
What is a fraction that contains variables?
You can combine variables in many ways with normal numbers, or with other variables, for example, x/3, 1/x, x/y, (1+x)/y, etc.
What is y equals 14-x?
It is a linear equation in the variables x and y.
What is the equation for rate?
Given two variables, X and Y, the rate of X relative to Y is X/Y.
WHEN are the words independent and dependent used to describe related variables?
If there are two variables X and Y such that changes in the value of X cause changes in the value of Y but changes in Y do not cause changes in X, then X is the independent variable and Y is the dependent variable.However, if changes in the value of X cause changes in the value of Y and changes in Y cause changes in X, then both X and Y are dependent variables.
What are examples variables in a equation?
Y = 2X Variables are X and Y If X = 2, then Y = 4 If X = 3, then Y = 6 and so forth. If you vary one then he other changes. Their values are variable.
What is an Example of two independent variables?
Variables are symbols that replace unknown numbers. Variables are often letters. For example: 5*x=10 7*6=y Here "x" and "y" are the variables.
Relationship between variables in direct proportionality and inverse proportionality?
Variables X and Y are in direct proportion is Y = c*X for some constant c (not zero). Then X increases whenever Y increases and conversely. Y increases by c times the increase in X. Variables X and Y are in inverse proportion is X*Y = k for some constant k (not zero). Then X increases whenevr Y decreases and conversely.
Program to exchange the value x and y using 3 variables?
temp = x; x = y; y = temp;
