Concave up is U-shaped.
There will be a inflection/critical point f'(x) =0 then a negative slope f'(x) = neg then another inflection/critical point f'(x) =0 at the bottom of the U-shape then a positive slope to last inflection/critical point. The interval for the Concave Up shape is the first and last inflection points.
P=4s
s=p/4
a=s^2, using s found above
a=p^2/16, we were told that p=40 so
a=40^2/16
a=100 in^2
9/10....................................
Answer:
take the total number of all x variables
Originally, both range() and xrange() produced numbers that could be iterated over with ... whereas reversed() is generally used to loop over a sequence in reverse order. ... Once you have it installed, put in the following:.
