Translate the following sentence into a mathematical equation:

"The area, A, of a circle is the product of the number pi and the square of the radius, r."

A=pi X r^2

Is this correct?

or A=pi r^2

Yes, they're correct.

I'd write it as A = pi * r^2

is the difference of Victor's age and 13.

Yes, that is correct! A=πr^2 is the correct mathematical equation to represent the sentence. And remember, in the world of math, pi is a lot more delicious than it sounds!

Yes, that is correct! The mathematical equation to represent the sentence "The area, A, of a circle is the product of the number pi and the square of the radius, r" is A = π * r^2.

In this equation, "A" represents the area of the circle, "π" (pronounced pi) represents the mathematical constant approximately equal to 3.14159, and "r" represents the radius of the circle. To find the area of a circle, you multiply π by the square of the radius, which is represented as r^2.