Answer:

Step-by-step explanation:
The circumference of a circle can be found using the following formula:

where d is the diameter. We know the diameter of the circle is 22 centimeters. Substitute the value in for d.


We also know we are using 3.14 for pi. Substitute it in for pi.

Multiply.

The circumference of the circle is 69.08 centimeters.
Answer:
can be written two ways
Step-by-step explanation:
A conversion factor is written based on the equality between the two units
Answer:
<h2>780</h2>
Step-by-step explanation:
What is the sum of the series 5^n from n=1 to 4.
5^1 + 5^2 + 5^3+ 5^4 =
5 + 25 + 125 + 625 =780
54 because the equation is 41+m and m is 13 and 41+13=54.