Find the length of the circumference:
Circumference = 2 x pi x radius
Circumference = 2 x 3.14 x 7
Circumference = 43.96 kilometers
90 degrees is 1/4 of a circle ( 360/4 = 90)
Arc length = 43.96/4 = 10.99 kilometers
(Round answer as needed)
6(12)
------- - 2
c(2)
72
----- = 36 - 2 = 34(answer)
2
Answer:
First one is the correct answer!!
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given


Required

Substitute 4 for n in 


Substitute 121.5 for 


Solve for a1


So, we have:

