The diagram shows the floor plan of a classroom. All dimensions are given in feet.
Blue rectangle with one side that says -2x+12 and the other that says 4x-3.
Which expression represents the area of the classroom in square feet?
The diagram shows the floor plan of a classroom. All dimensions are given in feet.
Blue rectangle with one side that says -2x+12 and the other that says 4x-3.
Which expression represents the area of the classroom in square feet?
-8x2+42x-36
-8x2+54x-36
2x2+9
-8x2-36
the hight is 4x-3 and the width is -2x+12
To find the area of a rectangle, we multiply the length by the width. In this case, the length is -2x+12 and the width is 4x-3.
Therefore, the expression that represents the area of the classroom in square feet is:
(-2x+12)(4x-3)
Multiplying this expression would give us the area in square feet. However, none of the given options match this expression.
try agian
Apologies for the confusion. Let's try again.
The area of a rectangle is calculated by multiplying its length by its width. In this case, the length of the rectangle is -2x+12 and the width is 4x-3.
Therefore, the expression that represents the area of the classroom in square feet is:
(-2x+12)(4x-3)
Expanding this expression gives us:
-8x^2 + 42x - 36
Hence, the correct option is:
-8x^2 + 42x - 36