Answer:
-(1/2)
Step-by-step explanation:
y1-y2/x1-x2
Diameter is 9 inch so the radius is 9/2=4.5inch
Part A: 2πr=28.26inch
π=28.26/(2r)
π=28.26/(2*4.5)=3.14
Part B: πr^2=63.585inch
π=63.585inch/(4.5inch)^2
π=3.139753086
Part C: Both of the answers are correct but Part B is more percise because it has more significant figures.
Answer:
the square root of 180/16 is approximately 3.3541
Step-by-step explanation:
No there is no variability cause the answers will always be the same