Question

The algebraic expression 6x² + 9x + 3 represents the area of a rectangle. What is the area of the

rectangle when x = 3 feet?
a. 51 square feet
b. 60 square feet
c. 66 square feet
d. 84 square feet

Answer 1

The area of the rectangle when x equals 3 feet is 84 square feet, corresponding to option d.

Step-by-step explanation:

To find the area of a rectangle described by the algebraic expression 6x² + 9x + 3 when x = 3 feet, we substitute 3 for x in the expression and perform the calculation:

Area = 6(3)² + 9(3) + 3

Area = 6(9) + 27 + 3

Area = 54 + 27 + 3

Area = 84 square feet

Therefore, the area of the rectangle when x = 3 feet is 84 square feet, which corresponds to option d.

Answer 2

The answer is D because 6(3)2 which is 6 x 9 = 54 + 9(3) = 81 + 3 = final answer 84