Hiroshi paid $34.95 to rent a car for a day, plus 12¢ for each kilometre he drove. The total rental cost, before taxes, was $55.
1 answer:
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We can rewrite this by subtracting the right side to get
... 3^(-x) -x^3 -x = 0
A graphing calculator shows this to have a solution near x=0.5.
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There are no algebraic means for solving such a combination of exponential and polynomial functions.
