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Mathematics 13 Online
OpenStudy (anonymous):

4. A biologist studied the populations of white-sided jackrabbits and black-tailed jackrabbits over a 5-year period. The biologist modeled the populations, in thousands, with the following polynomials where x is time, in years. White-sided jackrabbits: 5.5x^2 – 9.2x + 6.9 Black-tailed jackrabbits: 5.5x^2 + 9.9x + 1.3 What polynomial models the total number of white-sided and black-tailed jackrabbits?

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