Use the functions f(x)=4x+1,g(x)=2x2−6x, h(x)=−x2+3x−19 and for questions 18 - 20. A.) x²-9x-19

B.)3x²-9x+19

C.)-3x²-3x-19

D.)-3x²+9x-19

the 4th choice is the correct one

step-by-step explanation:

16.9 times 2.85

step-by-step explanation:

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180