In the early months of some year, one site added 0.5 million new accounts every day. At this rate, how many days would be needed
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If you notice the picture below, the amount of fencing, or perimeter, that will be used will be 3w + 2l
now
solve for "w", to see what critical points you get, and then run a first-derivative test on them, for the minimum
notice the
so. you can pretty much skip that one, though is a valid critical point, the width can't clearly be 0
so.. check the critical points on the other
now
solve for "w", to see what critical points you get, and then run a first-derivative test on them, for the minimum
notice the
so.. check the critical points on the other