A rectangular box is placed on a desk A physics lab student plans to calculate the pressure that the box exerts on the desk at its area of contact with the desk • The student first measures the mass of the box, in kilograms, and the area of its base, in square meters
. The pressure the box exerts on the desk is defined as the force (mass times acceleration due to gravity) the box exerts per unit of area of contact
• The box exerts a force equal to its mass times the acceleration, in meters per second squared, due to gravity
When the student calculates the pressure the box exerts, which unit should the student use to report the pressure?
А
2.

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

answer   download the app called socratic on your phoner:

step-by-step explanation: