The resale value V, in thousands of dollars, of a boat is a function of the number of years t since the start of 2011, and the formula is V = 14.5 − 1.3t. (a) Calculate V(3).  thousand dollars Explain in practical terms what your answer means. This means that the resale value of the boat will be  thousand dollars at the start of the year  . (b) In what year will the resale value be 9.3 thousand dollars? (c) Solve for t in the formula above to obtain a formula expressing t as a function of V. t =        (d) In what year will the resale value be 6.7 thousand dollars?

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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.