Answer:
Hey, where is the circle? I think you forgot to upload pic of circle.
Answer:
4:7 and 12:21
Step-by-step explanation:
<span>slope of -1/2 and a y-intercept of 4, so m = -1/2 and b = 4
using y = mx + b
y = -1/2x + 4
answer is </span><span>B. y= -1/2x +4</span>
Answer:
AB= 5.582
Step-by-step explanation:
Centeral angle /360° = AB length/2 pi r
![\frac{80}{360} = \frac{ab}{4} \\ ab = 5.582](https://tex.z-dn.net/?f=%20%5Cfrac%7B80%7D%7B360%7D%20%20%3D%20%20%5Cfrac%7Bab%7D%7B4%7D%20%20%5C%5C%20ab%20%3D%205.582)