Answer:
Circumference ≅ 195 mm
Step-by-step explanation:
The circumference of a circle is equal to: 
Since
we can replace that in the circumference equation giving us:

We know Diameter = 622 mm and pi = 3.14 so:

20X0.3= 6
30X0.3= 9
40X0.3= 12
Answer:B? l hope is B l hope helps
Step-by-step explanation:
if not help then l will answer other problem from you l hope is right
Answer:
x = ± 2i
Step-by-step explanation:
note that
= i
x² = - 12 ( take square root of both sides )
x = ±
= ±
= ± 2i
Answer:
42.43 ft
Step-by-step explanation:
Please find attached an image of the softball pitch
h² = p² + f² -2x p×f×cos45
h² = 43² + 60² - 2x (43)(60) x 0.7071
h² = 1849 + 3600 - 3648.636
h² = 1800.364
h = √1800.364
h = 42.43 feet