What is the radius of the quarter if the area is about 452.16 square millimeters ? Use 3.14 for pi. Do not label. Do not round.

Step-by-step explanation:

Im not sure but i think

452.16/3.14.= 3.14r^2/3.14

144(square root sign) = squarw root sign r^2)

12=r

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies