Final answer:
When the U.S. dollar depreciates against a foreign currency, U.S. goods and services become cheaper for foreign buyers, leading to an increase in demand for U.S. exports.
Step-by-step explanation:
When the U.S. dollar depreciates against a foreign currency, U.S. goods and services become cheaper for foreign buyers. This means that foreign buyers can purchase more U.S. goods and services for the same amount of their own currency. As a result, there is an increase in demand for U.S. exports and a boost in the U.S. economy.