3) factor 3k^2-16k+5
(3k-1)(k-5)
B is the answer.
4) Factor 2x^2+x-6
(2x-3)(x+2)
B is the answer.
5) factor 9s^2-6s+4
It can't be factored so the answer is D.
6) factor 40r^2-63r+18
(8r-3)(5r-6)
So the answer is B.
I hope this helps!
The awnser is 5 because 7 divided by 35 is 5
Tan 2 pi/3= (sin2pi/3)/(cos2pi/3)= (sqrt 3)/2 dividend by (-1/2)= - sqrt 3
Angle C = arctan(22/120)
Angle C = 10.39 degrees