In every formula, there are numbers and unknown values. What has to be done is to perform the calculation by removing the known value and leaving the unknown. For instance; x+3=5. In this case, one has two values that must be removed to discover the unknown value.
So one has to perform the inversion of the formula to solve for the unknown quantity. Therefore, we "flip" the equation. Since X is the unknown, we must use what we have. Therefore we subtract (doing the inverse of the stated equation) 3 from the total of 5. The sum of the answer will give the unknown quantity, in this case 2. To prove that you are right, you "plug in" the value that you have solved for into the missing value space and perform the equation to see if the answer is correct.
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There are five values with one missing. The original set had six values with a mean of 5, which means that the members of the set added up to thirty. The values we have total 19, the missing value is 11.
In mathematics, to evaluate means to find the numerical value of an expression or equation. This involves substituting given values into the expression and simplifying it to obtain a single numerical result. Evaluation is a fundamental process in mathematics used to determine the outcome of mathematical operations and expressions.
You replace each variable by its value. Then you do the indicated calculations.
A rational expression is not defined whenever the denominator of the expression equals zero. These will be the roots or zeros of the denominator.
To evaluate an expression is nothing but to operate the given expression according to the operators given in the expression if it is evaluable i.e, it could be convertable.