Question 269550
Suppose that a rectangle has an area of 89 square meters.
 Express the perimeter P as a function of the length x of one of the sides.
:
Rectangle: x by W
:
x * W = 89
W = {{{89/x}}}
:
P = 2x + 2W
Replace W with {{{89/x}}}
P = 2x + 2({{{89/x}}})
P = 2x + {{{178/x}}}