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drdrugus
Answers (2)
P(t) = 300*P*e^(-k*t) t is in years k = .011398045 1. Diff eq is dP/dt = -k*P 2. General soln is P = P0*e^(-kt)+1 3. Find k by letting P = 297.6 and P0=300 There are a few steps between 1 and 2 here. Well beyond college algebra.
Call the vector "u", Then u([x,y,z]-[8,6,3]=0. Simplify to get ans (b).
