Question

which piece of text uses this meaning of formula?
formula noun a recipe or a mixture of ingredients
the formula for finding the area of a square is ( a^2 ), where ( a ) is the length of one side.
when the coca - cola company introduced a new formula for its popular soft drink in 1985, it was the first time the product had been changed in ninety - nine years.

Explanation:

The given meaning of "formula" is a recipe or a mixture of ingredients. The first text uses "formula" to mean a mathematical rule (for area of a square), while the second text refers to the Coca - Cola's formula as the mixture of ingredients for the soft drink, which matches the given definition.

Answer:

When the Coca - Cola Company introduced a new formula for its popular soft drink in 1985, it was the first time the product had been changed in ninety - nine years.