Question

you have 92 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area

Answer 1

anyone?

Answer 2

nope lol

Answer 3

smartazz

Answer 4

you look like a soviet spy wingspan

Answer 5

do you spy for russia?

Answer 6

l + w + w = 92
l + 2w = 92 ------ (1)
Area A = lw ------- (2)

Find l from (1), substitute in (2)
Find dA/dw and set it to zero and solve for w.
Put w in (1) and solve for l.

Answer 7

cool thanks man

Answer 8

You are welcome.

Answer 9

Given: 92 feet of fencing to enclose a rectangular plot
maximize the area.

First, label the length x and width y.
what is the formula for the area?
what is the formula for the constraint (i.e. 92 feet of fence) ?

Answer 10

thanks phi