If a polynomial function f(x) has roots -9 and 7 - i , what must be a factor of f(x)

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175

i dont know if you cant find a way its best to actually add all of them start from 105 tho

step-by-step explanation:

a

step-by-step explanation:

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.