Answer:

Step-by-step explanation:
the arc length is equal to the radius x angle (in radians)

s= arc length, r= radius and a= the angle
solve for a ; a= s/r; a=

Answer:
6x^2+ 19x+8
Step-by-step explanation:
(3x+8)(2x+1) use foil method which gives you,
6x^2+16x+3x+8 then combine like terms which gives you,
6x^2+ 19x+8.
Vertex is (7,-4) for answer.
Hope this helps. :)