A company makes wax candles in the shape of a cylinder. Each candle has a diameter of 6 inches and a height of 4 inches. How much wax will the company need to make 140 candles? Use for 3.14 , and do not round your answer.

Around 15,825.6 in^3 of wax.

Step-by-step explanation:

The volume formula for a cylinder is V=πr^2h. Since we are plugging in 3.14 for pi, we multiply 4 (height) by 9 (radius is half the diameter and then we are squaring it according to formula), by 3.14. After we multiply all of these numbers, we end up with 113.04. This answer is the amount of wax we need per candle. To find the needed wax for 140 candles, we would multiply 113.04, the amount for one candle, by 140 (for the amount needed for 140 candles) to get our total amount of wax, which is 15,825.6 in^3 (don't forget units!).

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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