Question

someone help?
Giving a medal to best answer!
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: 5.5x2 – 9.2x + 6.9
Black-tailed jackrabbits: 5.5x2 + 9.9x + 1.3

What polynomial models the total number of white-sided and black-tailed jackrabbits?

(1 point)
11x2 + 0.7x + 8.2
11x2 – 0.7x + 8.2
11x2 – 0.7x – 8.2
–11x2 + 0.7x – 8.2

Answer 1

You want to find out the total so just add them both together and simplify such as:\[(5.5x^2-9.2x+6.9) + (5.5x^2+9.9x+1.3)\] Just simplify that and you have your answer

Answer 2

You sound like you know what you're doing. I recommend you attempt to solve this by yourself. Regardless, here is how you would do it:

11x^2 + 0.7x + 8.2

Answer 3

um thanks..for helping!