2. The amount of a radioactive substance A decays according to the exponential equation A = 30e"t. If it is known that at time t = 5 years, A = 20, find the value of r. (round your answer to the nearest thousandth)

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Q: 2. The amount of a radioactive substance A decays according to the exponential equation A = 30e"t.…

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Q: 2. The amount of a radioactive substance A decays according to the exponential equation A = 30e"t.…

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.