Hello, I need help on my Mathematics 30-1 (Pre-Calculus) Quiz 7.1, Questions #6-#9

27.1- TS 6. Which of the following values for x are possible integral zeros of f(x) = x* -3x'+ 6x2 -4x+ 16? A . +1, 13 B. +1, + 2, 14 C. +1, + 2, +3, +6 D. +1, + 2, + 4, 1 8, + 16 Hint: Recall what the term zero means. Integral means whole numbers and their negatives. 7. On a circle, a 210 angle forms an arc with a lenth of 150 cm. To the nearest tenth of a centimetre, the radius of the circle is Length = 150cm A. 0.7 cm B. 3.9 cm 0 = 210' C. 40.9 cm D. 121.5 cm R = C (r ) ? Hint: Convert to radians. 8. Convert -300 to radians, and state the quadrant in which the terminal arm of the angle lies. A. 3 B. STL IV 3 , 1 C. 3 , 1 D. 1 T 3 , IV Hint: A negative rotation is down, or clockwise, from the positive x-axis. 9. The point P(6, - 1 ) lies on the terminal arm of an angle, 0, in standard position. The value of sin 0, to the nearest hundredth, is A. -0.17 B. -0.16 C . 0.16 D. 0.17 Hint: Plot the point and make note of the quadrant. Determine only the ratio, not the angle