Here you go, hope this kinda helps you out :)
Answer:
A. 5.19 units
Step-by-step explanation:

Given:
= 81°- Arc length = 7.34 units
Substituting given values into the equation and solving for r:






Answer:
A
Step-by-step explanation:
It goes up and down due to the x^3 then the 3x^2
Answer:
r < 1/3
Step-by-step explanation:
21r<7
Divide each side by 21
21r/21<7/21
r < 1/3
Answer
c^4-32c^2+256 (Simplified)