1. Uranium-238 (U-238) has a half-life of 4.5 billion years. Geologists find a rock containing a mixture of U-238 and lead, and determine that 56% of the original U-238 remains: the other 44% has decayed into lead. How old is the rock? (Round to three decimal places as needed)

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A: Solution:

Q: find the general solution of the homogeneous differential equation with constant coefficients…

A: find the general solution of the homogeneous differential equation with constant coefficients…

Q: please

A: We find required transition matrix.