409,494 views
25 votes
25 votes
Can anyone solve this today?

Can anyone solve this today?-example-1
User Songxunzhao
by
3.1k points

1 Answer

30 votes
30 votes

Answer:

C

Explanation:

The area of a square is the square of the side length. When the side length x=2.5 cm, the area is the square of that value.

__

A(x) = x²

A(2.5 cm) = (2.5 cm)² = 6.25 cm²
_____

Additional comment

The "square" of a variable is that variable to the second power. The terms 2x or 4x are linear terms with the variable to the first power, do not represent the area of a square.

The equation A(x) = 4x² introduces a multiplier of 4 that is not applicable to the area of a square based on side length. (The formula might be useful if x represents the distance from one side to the center of the square, the radius of an inscribed circle, for example.)

Can anyone solve this today?-example-1
User Gasolin
by
2.7k points