Answer:
Using 3.14 as pi, the answer would be 56.52, and using just pi (as in the input on a calculator) would be 56.54867.
Step-by-step explanation:
The equation for circumference of a circle is C = πd, C representing the circumference and d representing the diameter. Since the equation shows the radius, the equation can also be C = 2πr, since the radius is half of the diameter. Multiply nine by two to get eighteen. 18 times 3.14 = 56.52.
Answer:a) 69.99
b) .20%
Your welcom
Step-by-step explanation:
Answer:
15/60
Step-by-step explanation:
10/40 is equivalent to 5/20, and you can multiply the top and bottom of this fraction by 3 to get 15/60
