How do you evaluate numbers in math?

1 answer:

4 0

To evaluate an expression in maths, plug in he value of the variable, then simplify the expression following the order of operation.

Assuming we are given the expression, 3x + (2x - 1), and we are required to evaluate the expression, the following shown below is how to evaluate the expression if we are told that x = 1.

First step is to plug in the value of the variable, x, into the expression:

3(1) + (2(1) - 1)

3 + 2 - 1

Using the order of operation, simply

Therefore, to evaluate an expression in maths, plug in he value of the variable, then simplify the expression following the order of operation.

Learn more about evaluation on:

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<u>Step-by-step explanation:</u>

Here we have , building engineer analyzes a concrete column with a circular cross section. The circumference of the column is 18π, pi meters. We need to find What is the area A of the cross section of the column .Let's find out:

We know that , Circumference of circle = $2\pi r$