The rate at which an assembly line worker's efficiency E (expressed as a percent) changes with respect to time t is given by E'() = 55 - 6t, where t is the number of hours since the worker's shift began. Assuming that E (1) = 92, find E(t). A E(t) = 55t - 3t 2 + 40 B E(t) = 55t - 3t 2 + 144 E(t) = 55t - 6t 2 + 40 E(t) = 55t - 3t 2 + 92 %3!

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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.