For this case, we have that by definition, the circumference of a circle is given by:

Where:
d: Is the diameter of the circle given by 2r, that is, twice the radius.
If we have a circle with a diameter equal to 8cm, then the circumference is given by:

ANswer:
Option C

Answer:
10^-1*2.65
Step-by-step explanation:
two hundred sixty-five thousandths= 0.265
We need a number between 1 and 10, to do the multiplication in standard form, so 0.265 turns into 2.65.
Because 2.65 becomes, smaller we use a negative power. We only move the decimal place once to the left, so we would multiply 2.65 by 10^1.
10^-1*2.65=0.265
Not equivalent to any of the given expressions.
Step-by-step explanation:

Hence,
is not equivalent to any of the given expressions.
Divide fractions by multiplying the first number by the reciprocal of the second.
2ay*15y= 30ay^2
5y^3*4a=20ay^3
(30ay^2)/(20ay^3)=3/(2y)
Final answer: 3/(2y)
Answer:
OPTION B: 80
SEE THE IMAGE FOR SOLUTION