Aflower box in the shape of a right rectangular prism is made of thin metal, shown below. the box has length 90 centimeters (cm), width 45 cm, and height 45 cm. the box is 85 percent filled with soil. each bag of soil holds 1 cubic (ft^3), and 1 ft^3 is approximately 28,316 cubic centimeters (cm^3). how many bags of soil are needed to finish filling the flower box?

a. 1 bag

b. 2 bags

c. 6 bags

d. 7 bags

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