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How do you find the value of an algebraic expression by substituting a number for each variable and simplifying?
The answer to the question is given in the question!If you want to find the value of an algebraic expression, then you need to substitute numerical values for each of the variables in the expression, and then calculate and simplify the result.
How do you graph 1 divided by 4 cos?
0.25
How do you differentiate sinx4?
multiply the expression by the power, then decrease the power by one: = 4sinx3
How are greater than and less than signs mean?
They mean that the expression to the left of the sign is greater than or less than (as appropriate) the expression to the right of the sign.
What is the expression of sine of 42-degrees?
Sin(42 o ) = 0.669130606 = 0.6691 ( 4 d.p._.
What is one difference between a variable expression and a numerical expression?
The variable.
What is an expression containing at least one variable called?
Variable expression.
Can an expression have more than one variable?
Yes, an expression can have more than one variable.
What is an expression that contains at least one variable.?
An algebraic expression is a type of expression that contains a variable or variables.
What is an expression that contains a variable a number and at least one operation?
That looks like the description of an EXPRESSION. However, an expression need not have "at least one operation"; a single number, or variable, is a perfectly valid expression.
Is 4d a numerical expression or variable expression?
A variable expression.
What is one difference between a variable and a numerical expression?
The variable.
What is 0.2x plus 27 82?
It is an expression with a variable, x.It is an expression with a variable, x.It is an expression with a variable, x.It is an expression with a variable, x.
What is expression with variable?
It is a variable expression.
Does a variable expression consists only of numbers?
An algebraic expression can have a mixture of numbers and variables, but it does not contain an equals sign.
What do you call replacing a variable in an expression by a number?
A variable is a letter that represents a number. An expression that contains at least one variable is called variable expression, also called algebraic expression. A variable expression has one or more terms. A term is a number, a variable, or a product of numbers and variables. For example,3(x^2)y + 2xy + x - 7 is a variable expression, where you have 4 terms.When working with variable expression, you often use the substitution principle:If a = b, then a may be replaced by b in any expression.The set of numbers that a variable may be represent is called replacement set, or domain, of the variable. To evaluate a variable expression, you replace each variable with one of its values and simplify the numerical expression that results.Example: Evaluate the expression 2x - 4y for x = 5 and y = -9.Solution:2x - 4y= 2(5) - 4(-9)= 10 + 36=46
Is an expression that contains at least one variable?
yes it should contain one variable or more.
