Answer:
option D is the correct answer.
Step-by-step explanation:
Answer:
Step-by-step explanation:
The formula C = 2√πA is designed to find a circle's circumference using the area (A). Alternatively, you can solve the equation A = πR2 in reverse to find R, then plug R into the circumference equation.
Answer:
B
Step-by-step explanation:
B because i² makes +1 and i=-1
so i³=-i