# How do you evaluate expressions?

Replace the variables with the given values. Then you calculate using the order of operations.

### What is the sum of multiplication expressions?

The sum of multiplication expressions is the answer that you'd have, if you added together more than one multiplication expression. For example: 3 x 4 + 5 x 2 = A <--- A = the answer after you do/evaluate the expressions 12 + 10 = A 22 = A 22 is the sum of the above multiplication expressions (i.e. 3 x 4 plus 5 x 2)

### What does equivalent expression mean in math?

It means that two expressions represent the same number; for example, 5 is equivalent to 3 + 2. If there are variables in the expression, it means that the two expressions will evaluate to the same number, for any value assigned to the variable or variables. For example, for any value of x, 2x is the same as x + x; therefore, the two are equivalent.

### How many times can a while loop be performed?

As many times as necessary. There is no practical limit because all loops rely on a control expression that can only evaluate true or false. So long as the control expression evaluates true, the loop will just keep iterating. The canonical example is the infinite loop: while (true) { // ... } The control expression never evaluates false, so the only way to break out of this loop is from within the body of the…

### What is a very simple example of nested if statements in c plus plus?

Nested-if statements are useful when we have two or more expressions that need to be evaluated in various combinations, where a standard if statement would result in the same expression being evaluated two or more times. For instance, if we have two expressions, a and b, and we want to test all the possible combinations of these two expressions then we find there are four possibilities: if (a && b) {/*...*/} else if (a &&…

### How are algebraic expressions and equations alike?

Algebraic expressions are the written relations of or between variables. For example, x2, 1/x, and x + y + z are all algebraic expressions. Algebraic equations are simply algebraic expressions that equate to something. For example, x2 = 4, 1/x = y, and x + y + z = 42 are all algebraic equations. In general, one differentiates algebraic expressions from exponential, trigonometric, hyperbolic, and logarithmic expressions by requiring algebraic expressions to be confined to…

### What is a boolean expression in java?

An expression is anything that can be evaluated ("calculated"), to get a value. Numeric expressions are more common: anything that you can calculate, and get a number. For example, if a and b are numbers, a + b will give you another number - it is therefore a numeric expression. The variables by themselves are also numeric expressions. A boolean expression is anything that you can evaluate and get a result that is boolean, i.e…