If f(x) = -4x + 3 and g(x) = 3x2 + 2x - 4, find (f+ g)(x). =
O A. (f+ g)(x) = 4x - 1
O B. (f+ g)(x) = -2x-1
OC. (f+g)(x) = 3x2 - 2x-1
O D. (f+g)(x) = 3x2 + 6x + 7
SUE

Step-by-step explanation:

u will have f(1)+g(1)=0

find the equation which is zero for 1 which is just C

b is the correct answer

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.