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Line 1: − In mathematics, a '''variable''' is a number whose value is not known. In basic arithmetic problems, the variable is typically the answer which the student must find:+ + + + − Given:+ − 5 + x = 12+ − + − Find x.+ − Since 5 + 7 = 12, the answer is:+ + + + + + + − x = 7+ + + + − A variable is usually is the subject or part of a [[function]] and must be subject to change while not affecting the structure behind the function in which it acts.+ + + + − For example, if we have a function: <math>f(x,y)=x^{2}+3y</math>, then <math>x,y</math> are said to be the variables of the function, <math>f</math>. + + + + + + − Further, <math>f(1,2)=(1)^{2}+3(2)=1+6=7</math>. We change the variable and thus alter the value of the function.+ + + + − Sometimes a function can have also a [[parameter]]. A parameter is similar to a variable, but is not written like a variable and is thus more similar to a [[constant]]. For example, if we a function: <math>f(x,y) = x^2 + ay</math>, then <math>a</math> is said to be a [[parameter]]. It does not change like the variables x and y, but it can nonetheless take different values. It is important to clearly distinguish the two concepts.+ + + + − The [[set]] of all variables upon which a function acts is said to be the [[domain]]. The set of all values that a function can take due to its domain is called its [[range]].+ − [[Category:Mathematics]]+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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Two trucks having sex
Two trucks having sex
My muscles, my muscles
Involuntarily flex
Two trucks having sex
Two trucks having sex
My muscles, my muscles
Involuntarily flex
TWO PICKUP TRUCKS
MAKING LOVE
AMERICAN MADE
BUILT FORD TOUGH
TWO BEAUTIFUL MURDER MACHINES
AMERICAN ANGELS IN THE SKY
GROWN MEN CRY
Two trucks having sex (oh yes)
Two trucks having sex (oh yes)
My muscles (UH) My muscles (UH)
Involuntarily flex
Two trucks, having sex (oh yes)
Two trucks, having sex (oh yes)
my muscles (UH) my muscles (UH)
Involuntarily flex
RIGHT BY MY SIDE
THERE'S ZZ TOP
AND ROBERT Z'DAR
FROM MANIAC COP 1, 2 and 3
THIS BARBECUE COULD BRING YOU TO YOUR KNEES
AND SO COULD THESE TWO TRUCKS
Two trucks holding hands
Two trucks holding hands
The passion, the passion
Is more than I can withstand
Two trucks holding hands
Two trucks holding hands
The passion, the passion
My big fat heart expands
TWO PICKUP TRUCKS
ONE CYLINDER BLOCK
CRUSH MY BODY LIKE A ROCK
SO BEAUTIFUL
NO STARS TONIGHT
JUST FIREWORKS AND EAGLES IN THE SKY
THE FOUNDING FATHERS CRY
Two trucks having sex (oh yes)
Two trucks having sex (oh yes)
my muscles (UH) my muscles (UH)
Involuntarily flex
Two trucks, having sex (oh yes)
Two trucks, having sex (oh yes)
my muscles (UH) my muscles (UH)
Involuntarily flex
Two trucks having sex
Two trucks having sex
My muscles, my muscles
Involuntarily flex
Two trucks having sex
Two trucks having sex
My muscles, my muscles
Involuntarily flex
Two trucks (having sex)
Two trucks (having sex)
Two trucks (having sex, having sex, having sex)
Two trucks (having sex)
Two trucks (having sex)
Two trucks (having sex, having sex, having sex)