A book has 12 chapters. The mean length of the chapters is 38 pages. How many total pages are there in the 12 chapters

456 pages

Step-by-step explanation:

The definition of mean is average.

So you just multiply how many chapters which is 12 by the pages in each chapter so 38.

38X12+=456

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.

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