Choose the correct answer. What is meant by the order of operations?
1. a set of rules used to determine the proper order for performing operations in an expression that involves more than one operation
2. a value, usually in the form of a letter or symbol, that can change or that represents an unknown quantity
3. an equation that expresses a mathematical rule or relationship
4. a ratio that is used to convert one unit of measurement to a different unit of measurement

The answer is 1, think PEMDAS if you were taught that.

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.