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To evaluate a variable expression you must do what to values for the variable?
Wiki User
∙ 7y ago
You must substitute values for the variable.
Wiki User
∙ 7y ago
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Can you solve for a variable in an expression?
No, you can only simplify an expression. To solve for a variable, it must be in an equation.
How do you write an expression in quadratic form?
Write an expression consisting of up to three terms:One term in which the key variable is squared,one term with a multiple of the variable, anda constant.The first of these MUST be present. The three terms must be added or subtracted.
In a linear equation the independent variable increases at a constant rate while the dependent variable decreases at a constant rate the slope of this line is?
The slope is negative. This just means that your x-values (independent) are increasing (which is usually the case). Such as 0,1,2,3,4,5. While the y-values (dependent) are decreasing. such as -5,-4,-3,-2,-1,0. Since the y-values are decreasing, this must mean the slope has to be negative.
What is the advantage of simplification of boolean expression?
It will help us to In SOP standard form, every variable in the domain must appear in each term. This form is useful for constructing truth tables or for implementing logic in PLDs.
What equation is true for some values of its variable and is not true for others?
No equation can have that property. It cannot be an equation if it is not true. If necessary, the domain must be amended. An equation can have different forms over different parts of its domain.
What must you do to evaluate a variable expression?
you have to undo what ever's being done to the variable :p
How do you evaluate a math expression?
The evaluate a algebraic math expression you first must substitute a number for each variable. Then you must perform the operation in the correct order.
To evaluate a variable you must values for the variable and then calculate the result?
No. To evaluate a variable, you simply take its value. When you assign a value to a variable, the evaluation of that operation is the value of the variable after assignment. There is no calculation required to evaluate a variable, unless that calculation is part of the right-hand operand of an assignment operation, in which case the calculation is evaluated first and the result of that evaluation (the value) is then assigned to the variable which is then evaluated.
Do a variable expression consist only of numbers?
No, because numbers never vary. A variable expression must have something in it that can take on different values, usually a letter, like 'x' for example.
What is necessary to evaluate chi-square?
It is necessary to have a null hypothesis. This must be used to calculate expected values of the variable under study for various categories. These must be at least 5: if not, you need to combine categories. You also need the observed values. Finally, you need to know the degrees of freedom for the chi-square variable.
Can you solve for a variable in an expression?
No, you can only simplify an expression. To solve for a variable, it must be in an equation.
How can you tell if a table of values represents a function?
If all the values of the "independent" variable (x) are different then it is a function.If there are any repeats of the independent variable, the corresponding dependent variable, y, must be the same.If all the values of the "independent" variable (x) are different then it is a function.If there are any repeats of the independent variable, the corresponding dependent variable, y, must be the same.If all the values of the "independent" variable (x) are different then it is a function.If there are any repeats of the independent variable, the corresponding dependent variable, y, must be the same.If all the values of the "independent" variable (x) are different then it is a function.If there are any repeats of the independent variable, the corresponding dependent variable, y, must be the same.
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.
When you need to satisfy two or more criteria to initiate an event in a program you must make sure that the second decision is made entirely independently of the first decision?
Evaluate the criteria before executing the conditional expression. In pseudocode:result1 = evaluate( criteria1 );result2 = evaluate( criteria2 );if( result1 && result2 ) initiate_event;Note that this is not the same as the following:if( evaluate( criteria1 ) && evaluate( criteria2 )) initiate_event;If the evaluation of criteria1 fails for any reason, then the whole expression fails and criteria2 is never evaluated. so if the evaluations must be done independently of each other, then they must be done prior to the conditional expression, storing the results for use in the conditional expression.
If you multiply both sides of an equation by an expression that involves a variable you must?
check the solution.
When do you declare a variable method and a class final?
When There is No Need to Change the Values of the Variables In Entire lifetime of That variables then we must use that Variable as Final Variable.
How do you write an expression in quadratic form?
Write an expression consisting of up to three terms:One term in which the key variable is squared,one term with a multiple of the variable, anda constant.The first of these MUST be present. The three terms must be added or subtracted.
