**Half-Life The radioactive decay of Sm-151 (an isotope of samarium) can be modeled by the differential equation dy/dt = -0.0077y, where t is measured in years. Find the half-life of**

**Sm-151.**

**Answer:**

**Half-Life The radioactive decay of Sm-151 (an isotope of samarium) can be modeled by the differential equation dy/dt = -0.0077y, where t is measured in years. Find the half-life of**

**Sm-151.**

**Answer:**