When a certain over the counter drug enters the bloodstream, it gradually dilutes, decreasing exponentially. you take a 200 mg dose at 8: 00pm, and by 11: 00pm, there is only 75 mg remaining.

a) if the drug is only effective with at least 65 mg in the blood stream, about what time should you take another dose?

b) assume you don’t take another dose after 8: 00pm, how much would be left in your blood stream after 10 days?

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

the awnser is 10,000 times greater than 5.39×10^−2