Mrs. Bird set-up her kindergarten classroom so that there was a right triangular area formed by the bookshelves, as shown in the picture below. Note: Figure is not drawn to scale.

If bookshelf A is 3 feet long and bookshelf B is 4 feet long, what is the length of bookshelf C?
A.
5 feet
B.
7 feet
C.
6 feet
D.
8 feet

898.1666667

step-by-step explanation:

5389/6 = 898.1666667

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