Abiologist studied the populations of black bear and brown bears over a 10 year period. the biologist modeled the populations, in thousands with the following polynomials where x is time , in years. black bears : 2.3x^2-5.6x+2.3 brown bears: 2.4x^2+7.2x+0.97 what polynomial models the total number of brown and black bears ? a.) 4.7x^2+1.6x+3.27 b.) 4.7x^2-1.6x-3.37 c.) 4.7x^2+1.6x-3.37 d.) 4.7x^2-1.6x+3.37 i need ? ?

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!