r = (C / π) / 2
Actually the formula of the circumference is Pi multiplied to diameter; where the diameter is equal to twice the radius.
C = π d
d = 2 r
C = π * 2r
If we need to find the radius from the Circumference then
r = (C / π) / 2
You must differentiate Pi from the number 2 because 2 is part of the radius. This is also to avoid confusion.
For example: r = 5 ; π - 3.14; find the circumference
C = π * 2r
C = 3.14 * (2*5)
C = 3.14 * 10
C = 31.40
If the circumference is given and the radius is missing, then,
r = (C/π) / 2
r = (31.4 / 3.14) / 2
r = 10 / 2
r = 5
ABC and EBC :) hope this helps
It is 2/1 all you have to do is flip the two numbers so the 2 is now on top and 1 is on the bottom.
It can be either B. 11 or C. -11
the answer to this problem is 2/25. I got this by simplifying both exponents which changes the equation to (2)(1000)(4)(1/100000). Then you multiply the other numbers by its simplified exponent and makes the equation 2000(1/25000). The last step is to multiply those two and you get your answer, 2/25(simplified version) :)
