A biologist 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 help ?? algebra 1b

Question

A biologist 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 help ?? algebra 1b

anonymous · Answer

You need to combine like terms.  i.e. add the $$x ^{2}, x, number$$$$(2.3 x^{2} - 5.6x + 2.3) + (2.4x ^{2} + 7.2x + 0.97) = 4.7x ^{2} + 1.6x + 3.27$$

anonymous · Answer

@Kfins99

anonymous · Answer

Oh, sorry, I really don't know this! I really stink at Mathematics. I apologize

anonymous · Answer

lol it's ok