Answer:
4.5 cm.
Step-by-step explanation:
We have been given that circle O has a circumference of approximately 28.3 cm.
We will use circumference formula to solve for the radius of our given circle.

Upon substituting the measure of circumference in above formula we will get,


Therefore, the radius of circle O is 4.5 cm.
Answer:
1.575 kg
Step-by-step explanation:
75g x 21
1575 g
convert to kg
1.575 kg
Brainliest Appreciated!
Answer:
I am sorry but what did you want the question to be?
Step-by-step explanation:
I can answer you in the comments below but I’m not sure what you’re asking
Answer:
1000
Step-by-step explanation:
Since the Richter Scale is based off of an exponential equation, every point on the scale adds a magnitude of 10.