Question

HELP PLEASE!!!!

Answer 1

with?

Answer 2

I will fan and medal


A biologist studied the populations of black bears 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 -3.27
C.) 4.7x^2 + 1.6x -3.27
D.) 4.7x^2 - 1.6x +3.27

Answer 3

3.27+0.97
4.7x^2 + 2.4x^2

Answer 4

ops.... sorry... i have mistype something... pls forgive me for that :(
the 2 equations r
2.3x^2 - 5.6x +2.3 ---- (1)
and
2.4x^2 + 7.2x + 0.97 ---- (2)

and u can c the like terms r
2.3x^2 and 2.4x^2
and
-5.6x and 7.2x
and
2.3 and 0.97
so.. what will u get if u simplify these
2.3x^2 + 2.4x^2 = ?
-5.6 x + 7.2x = ?
2.3 + 0.97 = ?

remember u can add or sub the coefficient of those with "x" term

Answer 5

its okay and the 1st one is 4.7x^2
the 2nd one is 1.6x
the last one is 3.27

Answer 6

yep :)
and now all u have to do is write them in a row..
4.7x^2 + 1.6x + 3.27
and that is ur answer.. :)

and pls srry for my mistake above :(

Answer 7

its okay :) and thank you so very much

Answer 8

u r welcome :)