2 votes 2 votes Suppose a radioactive substance decays according to the equation $y=2000e^{-0.75t}$, where $y$ represent the mass in grams after $t$ hours. Calculate the mass of the substance after $3\frac{1}{2}$ hours have elapsed Hailemariam asked Aug 4, 2022 Hailemariam 321 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.