5/12-1/6 is the correct answer.
Answer:
22.5
Step-by-step explanation:
All of the angles inside the triangle equals 180. Therefore, the equation is x+2x+5x=180. Then, you solve for x. The final equation should look like 8x=180 And that is how we get.22.5
5.8 mph because 8.5ft/sec=8.5*3600/5280
Since the slope of a perpendicular line is facing the opposite angle and intersecting the given line, the slope is going to be the opposite of the given line.
Therefore, the answer is 3.
Best of Luck!