Given the points A(-5,3), B(-1,8), C(6,2), and D(10,7). Would lines AB and CD be parallel, perpendicular, or just intersecting? Type the slopes as reduced fractions.

parallel

Step-by-step explanation:

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

entering that problem on the tube might get you an answer